Android如何在软键盘可见时在全屏模式下调整布局

基于 yghm 的解决方法，我编写了一个方便类，它允许我用单线解决问题（当然是在将新类添加到我的源代码之后）。单线是：

     AndroidBug5497Workaround.assistActivity(this);

实现类是：

public class AndroidBug5497Workaround {

    // For more information, see https://issuetracker.google.com/issues/36911528
    // To use this class, simply invoke assistActivity() on an Activity that already has its content view set.

    public static void assistActivity (Activity activity) {
        new AndroidBug5497Workaround(activity);
    }

    private View mChildOfContent;
    private int usableHeightPrevious;
    private FrameLayout.LayoutParams frameLayoutParams;

    private AndroidBug5497Workaround(Activity activity) {
        FrameLayout content = (FrameLayout) activity.findViewById(android.R.id.content);
        mChildOfContent = content.getChildAt(0);
        mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            public void onGlobalLayout() {
                possiblyResizeChildOfContent();
            }
        });
        frameLayoutParams = (FrameLayout.LayoutParams) mChildOfContent.getLayoutParams();
    }

    private void possiblyResizeChildOfContent() {
        int usableHeightNow = computeUsableHeight();
        if (usableHeightNow != usableHeightPrevious) {
            int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight();
            int heightDifference = usableHeightSansKeyboard - usableHeightNow;
            if (heightDifference > (usableHeightSansKeyboard/4)) {
                // keyboard probably just became visible
                frameLayoutParams.height = usableHeightSansKeyboard - heightDifference;
            } else {
                // keyboard probably just became hidden
                frameLayoutParams.height = usableHeightSansKeyboard;
            }
            mChildOfContent.requestLayout();
            usableHeightPrevious = usableHeightNow;
        }
    }

    private int computeUsableHeight() {
        Rect r = new Rect();
        mChildOfContent.getWindowVisibleDisplayFrame(r);
        return (r.bottom - r.top);
    }
}

希望这可以帮助某人。

---

由于已经选择了答案并且已知问题是一个错误，我想我会添加一个“可能的解决方法”。

当显示软键盘时，您可以切换全屏模式。这允许“adjustPan”正常工作。

换句话说，我仍然使用 @android:style/Theme.Black.NoTitleBar.Fullscreen 作为应用程序主题的一部分，并使用 stateVisible|adjustResize 作为活动窗口软输入模式的一部分，但是为了让它们一起工作，我必须切换全屏模式在键盘出现之前。

使用以下代码：

关闭全屏模式

getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

开启全屏模式

getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);

注意 - 灵感来自：Hiding Title in a Fullscreen mode

---

我尝试了 solution from Joseph Johnson，但和其他人一样，我遇到了内容与键盘之间的差距问题。出现此问题是因为在使用全屏模式时，软输入模式始终是 pan。当您激活将被软输入隐藏的输入字段时，此平移会干扰 Joseph 的解决方案。

当软输入出现时，首先根据其原始高度平移内容，然后根据约瑟夫的解决方案要求的布局调整大小。调整大小和随后的布局不会撤消平移，这会导致间隙。事件的完整顺序是：

全局布局侦听器平移内容布局（= 实际调整内容大小）

无法禁用平移，但可以通过更改内容的高度来强制平移偏移为 0。这可以在侦听器中完成，因为它在平移发生之前运行。将内容高度设置为可用高度会产生流畅的用户体验，即没有闪烁。

我也做了这些改变。如果其中任何一个引入问题，请告诉我：

切换确定可用高度以使用 getWindowVisibleDisplayFrame。 Rect 被缓存以防止一些不需要的垃圾。

也允许删除侦听器。当您为具有不同全屏要求的不同片段重用活动时，这很有用。

不区分键盘显示或隐藏，但始终将内容高度设置为可见显示框高度。

它已经在 Nexus 5 和运行 API 级别 16-24 的模拟器上进行了测试，屏幕尺寸从小到大不等。

代码已移植到 Kotlin，但将我的更改移植回 Java 很简单。如果您需要帮助，请告诉我：

class AndroidBug5497Workaround constructor(activity: Activity) {
    private val contentContainer = activity.findViewById(android.R.id.content) as ViewGroup
    private val rootView = contentContainer.getChildAt(0)
    private val rootViewLayout = rootView.layoutParams as FrameLayout.LayoutParams
    private val viewTreeObserver = rootView.viewTreeObserver
    private val listener = ViewTreeObserver.OnGlobalLayoutListener { possiblyResizeChildOfContent() }

    private val contentAreaOfWindowBounds = Rect()
    private var usableHeightPrevious = 0

    // I call this in "onResume()" of my fragment
    fun addListener() {
        viewTreeObserver.addOnGlobalLayoutListener(listener)
    }

    // I call this in "onPause()" of my fragment
    fun removeListener() {
        viewTreeObserver.removeOnGlobalLayoutListener(listener)
    }

    private fun possiblyResizeChildOfContent() {
        contentContainer.getWindowVisibleDisplayFrame(contentAreaOfWindowBounds)
        val usableHeightNow = contentAreaOfWindowBounds.height()
        if (usableHeightNow != usableHeightPrevious) {
            rootViewLayout.height = usableHeightNow
            // Change the bounds of the root view to prevent gap between keyboard and content, and top of content positioned above top screen edge.
            rootView.layout(contentAreaOfWindowBounds.left, contentAreaOfWindowBounds.top, contentAreaOfWindowBounds.right, contentAreaOfWindowBounds.bottom)
            rootView.requestLayout()

            usableHeightPrevious = usableHeightNow
        }
    }
}

---

如果您使用系统 UI 方法 (https://developer.android.com/training/system-ui/immersive.html)，我刚刚找到了一个简单可靠的解决方案。

它适用于您使用 View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN 的情况，例如，如果您使用 CoordinatorLayout。

它不适用于 WindowManager.LayoutParams.FLAG_FULLSCREEN（您也可以使用 android:windowFullscreen 在主题中设置），但您可以使用 SYSTEM_UI_FLAG_LAYOUT_STABLE（“具有相同的视觉效果”according to the docs）和此解决方案实现类似的效果应该再次工作。

getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION /* If you want to hide navigation */
                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE)

我已经在运行 Marshmallow 的设备上对其进行了测试。

关键是软键盘也是系统窗口之一（如状态栏和导航栏），所以系统调度的WindowInsets包含准确可靠的信息。

对于 DrawerLayout 中我们试图在状态栏后面绘制的用例，我们可以创建一个仅忽略顶部插图的布局，并应用占软键盘的底部插图。

这是我的自定义 FrameLayout：

/**
 * Implements an effect similar to {@code android:fitsSystemWindows="true"} on Lollipop or higher,
 * except ignoring the top system window inset. {@code android:fitsSystemWindows="true"} does not
 * and should not be set on this layout.
 */
public class FitsSystemWindowsExceptTopFrameLayout extends FrameLayout {

    public FitsSystemWindowsExceptTopFrameLayout(Context context) {
        super(context);
    }

    public FitsSystemWindowsExceptTopFrameLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public FitsSystemWindowsExceptTopFrameLayout(Context context, AttributeSet attrs,
                                                 int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
    public FitsSystemWindowsExceptTopFrameLayout(Context context, AttributeSet attrs,
                                                 int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }

    @Override
    public WindowInsets onApplyWindowInsets(WindowInsets insets) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            setPadding(insets.getSystemWindowInsetLeft(), 0, insets.getSystemWindowInsetRight(),
                    insets.getSystemWindowInsetBottom());
            return insets.replaceSystemWindowInsets(0, insets.getSystemWindowInsetTop(), 0, 0);
        } else {
            return super.onApplyWindowInsets(insets);
        }
    }
}

并使用它：

<com.example.yourapplication.FitsSystemWindowsExceptTopFrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- Your original layout here -->
</com.example.yourapplication.FitsSystemWindowsExceptTopFrameLayout>

从理论上讲，这应该适用于任何没有疯狂修改的设备，比任何试图以随机 1/3 或 1/4 屏幕尺寸作为参考的黑客攻击都要好得多。

（它需要 API 16+，但我只在 Lollipop+ 上使用全屏在状态栏后面绘图，所以在这种情况下这是最好的解决方案。）

---

请注意，当为活动设置 WindowManager.LayoutParams.FLAG_FULLSCREEN 时，android:windowSoftInputMode="adjustResize" 不起作用。 您有两种选择。

为您的活动禁用全屏模式。 Activity 在全屏模式下不会重新调整大小。您可以在 xml（通过更改活动的主题）或 Java 代码中执行此操作。在 onCreate() 方法中添加以下行。 getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN); getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);`

或者

使用另一种方式来实现全屏模式。在您的 onCreate() 方法中添加以下代码。 getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN); getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);查看 decorView = getWindow().getDecorView(); // 隐藏状态栏。 int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN; decorView.setSystemUiVisibility（uiOptions）；`

请注意，method-2 仅适用于 Android 4.1 及更高版本。

---

我也不得不面对这个问题，并且我在 HTC one、galaxy s1、s2、s3、note 和 HTC sense 上进行了检查。

在布局的根视图上放置一个全局布局监听器

mRootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener(){
            public void onGlobalLayout() {
                checkHeightDifference();
            }
    });

在那里我检查了高度差，如果屏幕的高度差大于屏幕高度的三分之一，那么我们可以假设键盘是打开的。取自 this answer。

private void checkHeightDifference(){
    // get screen frame rectangle 
    Rect r = new Rect();
    mRootView.getWindowVisibleDisplayFrame(r);
    // get screen height
    int screenHeight = mRootView.getRootView().getHeight();
    // calculate the height difference
    int heightDifference = screenHeight - (r.bottom - r.top);

    // if height difference is different then the last height difference and
    // is bigger then a third of the screen we can assume the keyboard is open
    if (heightDifference > screenHeight/3 && heightDifference != mLastHeightDifferece) {
        // keyboard visiblevisible
        // get root view layout params
        FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) mRootView.getLayoutParams();
        // set the root view height to screen height minus the height difference
        lp.height = screenHeight - heightDifference;
        // call request layout so the changes will take affect
        .requestLayout();
        // save the height difference so we will run this code only when a change occurs.
        mLastHeightDifferece = heightDifference;
    } else if (heightDifference != mLastHeightDifferece) {
        // keyboard hidden
        PFLog.d("[ChatroomActivity] checkHeightDifference keyboard hidden");
        // get root view layout params and reset all the changes we have made when the keyboard opened.
        FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) mRootView.getLayoutParams();
        lp.height = screenHeight;
        // call request layout so the changes will take affect
        mRootView.requestLayout();
        // save the height difference so we will run this code only when a change occurs.
        mLastHeightDifferece = heightDifference;
    }
}

这可能不是防弹的，也许在某些设备上它不起作用，但它对我有用，希望它也能帮助你。

---

将 android:fitsSystemWindows="true" 添加到布局中，此布局将调整大小。

---

我实施了 Joseph Johnson 解决方案，它运行良好，我注意到使用此解决方案后，有时应用程序上的抽屉无法正常关闭。当用户关闭编辑文本所在的片段时，我添加了一个删除监听器 removeOnGlobalLayoutListener 的功能。

    //when the application uses full screen theme and the keyboard is shown the content not scrollable! 
//with this util it will be scrollable once again
//http://stackoverflow.com/questions/7417123/android-how-to-adjust-layout-in-full-screen-mode-when-softkeyboard-is-visible
public class AndroidBug5497Workaround {


    private static AndroidBug5497Workaround mInstance = null;
    private View mChildOfContent;
    private int usableHeightPrevious;
    private FrameLayout.LayoutParams frameLayoutParams;
    private ViewTreeObserver.OnGlobalLayoutListener _globalListener;

    // For more information, see https://code.google.com/p/android/issues/detail?id=5497
    // To use this class, simply invoke assistActivity() on an Activity that already has its content view set.

    public static AndroidBug5497Workaround getInstance (Activity activity) {
        if(mInstance==null)
        {
            synchronized (AndroidBug5497Workaround.class)
            {
                mInstance = new AndroidBug5497Workaround(activity);
            }
        }
        return mInstance;
    }

    private AndroidBug5497Workaround(Activity activity) {
        FrameLayout content = (FrameLayout) activity.findViewById(android.R.id.content);
        mChildOfContent = content.getChildAt(0);
        frameLayoutParams = (FrameLayout.LayoutParams) mChildOfContent.getLayoutParams();

        _globalListener = new ViewTreeObserver.OnGlobalLayoutListener()
        {

            @Override
            public void onGlobalLayout()
            {
                 possiblyResizeChildOfContent();
            }
        };
    }

    public void setListener()
    {
         mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(_globalListener);
    }

    public void removeListener()
    {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            mChildOfContent.getViewTreeObserver().removeOnGlobalLayoutListener(_globalListener);
        } else {
            mChildOfContent.getViewTreeObserver().removeGlobalOnLayoutListener(_globalListener);
        }
    }

    private void possiblyResizeChildOfContent() {
        int usableHeightNow = computeUsableHeight();
        if (usableHeightNow != usableHeightPrevious) {
            int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight();
            int heightDifference = usableHeightSansKeyboard - usableHeightNow;
            if (heightDifference > (usableHeightSansKeyboard/4)) {
                // keyboard probably just became visible
                frameLayoutParams.height = usableHeightSansKeyboard - heightDifference;
            } else {
                // keyboard probably just became hidden
                frameLayoutParams.height = usableHeightSansKeyboard;
            }
            mChildOfContent.requestLayout();
            usableHeightPrevious = usableHeightNow;
        }
    }

    private int computeUsableHeight() {
        Rect r = new Rect();
        mChildOfContent.getWindowVisibleDisplayFrame(r);
        return (r.bottom - r.top);
    } 
}

使用我的编辑文本所在的类

@Override
public void onStart()
{
    super.onStart();
    AndroidBug5497Workaround.getInstance(getActivity()).setListener();
}

@Override
public void onStop()
{
    super.onStop();
    AndroidBug5497Workaround.getInstance(getActivity()).removeListener();
}

---

我目前正在使用这种方法，它就像一个魅力。诀窍是我们从上面和下面的 21 的不同方法中获取键盘高度，然后将它用作我们活动中根视图的底部填充。我假设您的布局不需要顶部填充（位于状态栏下方），但如果您这样做，请通知我更新我的答案。

MainActivity.java

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        RelativeLayout mainLayout = findViewById(R.id.main_layout);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            ViewCompat.setOnApplyWindowInsetsListener(mainLayout , new OnApplyWindowInsetsListener() {
                @Override
                public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
                    v.setPadding(0, 0, 0, insets.getSystemWindowInsetBottom());
                    return insets;
                }
            });
        } else {
            View decorView = getWindow().getDecorView();
            final View contentView = mainLayout;
            decorView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                @Override
                public void onGlobalLayout() {
                    Rect r = new Rect();
                    //r will be populated with the coordinates of your view that area still visible.
                    decorView.getWindowVisibleDisplayFrame(r);

                    //get screen height and calculate the difference with the useable area from the r
                    int height = decorView.getContext().getResources().getDisplayMetrics().heightPixels;
                    int diff = height - r.bottom;

                    //if it could be a keyboard add the padding to the view
                    if (diff != 0) {
                        // if the use-able screen height differs from the total screen height we assume that it shows a keyboard now
                        //check if the padding is 0 (if yes set the padding for the keyboard)
                        if (contentView.getPaddingBottom() != diff) {
                            //set the padding of the contentView for the keyboard
                            contentView.setPadding(0, 0, 0, diff);
                        }
                    } else {
                        //check if the padding is != 0 (if yes reset the padding)
                        if (contentView.getPaddingBottom() != 0) {
                            //reset the padding of the contentView
                            contentView.setPadding(0, 0, 0, 0);
                        }
                    }
                }
            });
        }
    }
...
}

不要忘记使用 id 来处理您的根视图：

activity_main.xml

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/main_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

希望它可以帮助某人。

---

让它与全屏一起工作：

使用离子键盘插件。这使您可以聆听键盘何时出现和消失。

OnDeviceReady 添加这些事件监听器：

// Allow Screen to Move Up when Keyboard is Present
window.addEventListener('native.keyboardshow', onKeyboardShow);
// Reset Screen after Keyboard hides
window.addEventListener('native.keyboardhide', onKeyboardHide);

逻辑：

function onKeyboardShow(e) {
    // Get Focused Element
    var thisElement = $(':focus');
    // Get input size
    var i = thisElement.height();
    // Get Window Height
    var h = $(window).height()
    // Get Keyboard Height
    var kH = e.keyboardHeight
    // Get Focused Element Top Offset
    var eH = thisElement.offset().top;
    // Top of Input should still be visible (30 = Fixed Header)
    var vS = h - kH;
    i = i > vS ? (vS - 30) : i;
    // Get Difference
    var diff = (vS - eH - i);
    if (diff < 0) {
        var parent = $('.myOuter-xs.myOuter-md');
        // Add Padding
        var marginTop = parseInt(parent.css('marginTop')) + diff - 25;
        parent.css('marginTop', marginTop + 'px');
    }
}

function onKeyboardHide(e) {
  // Remove All Style Attributes from Parent Div
  $('.myOuter-xs.myOuter-md').removeAttr('style');
}

基本上，如果它们的差异是负数，那么这就是键盘覆盖您输入的像素数量。因此，如果您通过此调整您的父 div，则应该抵消它。

将超时添加到逻辑中说 300 毫秒也应该优化性能（因为这将允许键盘时间出现。

---

我尝试了 Joseph Johnson 的课程，它奏效了，但并不能完全满足我的需求。而不是模拟 android:windowSoftInputMode="adjustResize"，我需要模拟 android:windowSoftInputMode="adjustPan"。

我将其用于全屏 web 视图。要将内容视图平移到正确的位置，我需要使用一个 javascript 界面，该界面提供有关具有焦点的页面元素位置的详细信息，因此正在接收键盘输入。我省略了这些细节，但提供了我对约瑟夫约翰逊课程的重写。它将为您实现自定义平移与他的调整大小提供一个非常坚实的基础。

package some.package.name;

import some.package.name.JavaScriptObject;

import android.app.Activity;
import android.graphics.Rect;
import android.view.View;
import android.view.ViewTreeObserver;
import android.widget.FrameLayout;

//-------------------------------------------------------
// ActivityPanner Class
//
// Convenience class to handle Activity attributes bug.
// Use this class instead of windowSoftInputMode="adjustPan".
//
// To implement, call enable() and pass a reference
// to an Activity which already has its content view set.
// Example:
//      setContentView( R.layout.someview );
//      ActivityPanner.enable( this );
//-------------------------------------------------------
//
// Notes:
//
// The standard method for handling screen panning
// when the virtual keyboard appears is to set an activity
// attribute in the manifest.
// Example:
// <activity
//      ...
//      android:windowSoftInputMode="adjustPan"
//      ... >
// Unfortunately, this is ignored when using the fullscreen attribute:
//      android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
//
//-------------------------------------------------------
public class ActivityPanner {

    private View contentView_;
    private int priorVisibleHeight_;

    public static void enable( Activity activity ) {
        new ActivityPanner( activity );
    }

    private ActivityPanner( Activity activity ) {
        FrameLayout content = (FrameLayout)
            activity.findViewById( android.R.id.content );
        contentView_ = content.getChildAt( 0 );
        contentView_.getViewTreeObserver().addOnGlobalLayoutListener(
            new ViewTreeObserver.OnGlobalLayoutListener() {
                public void onGlobalLayout() { panAsNeeded(); }
        });
    }

    private void panAsNeeded() {

        // Get current visible height
        int currentVisibleHeight = visibleHeight();

        // Determine if visible height changed
        if( currentVisibleHeight != priorVisibleHeight_ ) {

            // Determine if keyboard visiblity changed
            int screenHeight =
                contentView_.getRootView().getHeight();
            int coveredHeight =
                screenHeight - currentVisibleHeight;
            if( coveredHeight > (screenHeight/4) ) {
                // Keyboard probably just became visible

                // Get the current focus elements top & bottom
                // using a ratio to convert the values
                // to the native scale.
                float ratio = (float) screenHeight / viewPortHeight();
                int elTop = focusElementTop( ratio );
                int elBottom = focusElementBottom( ratio );

                // Determine the amount of the focus element covered
                // by the keyboard
                int elPixelsCovered = elBottom - currentVisibleHeight;

                // If any amount is covered
                if( elPixelsCovered > 0 ) {

                    // Pan by the amount of coverage
                    int panUpPixels = elPixelsCovered;

                    // Prevent panning so much the top of the element
                    // becomes hidden
                    panUpPixels = ( panUpPixels > elTop ?
                                    elTop : panUpPixels );

                    // Prevent panning more than the keyboard height
                    // (which produces an empty gap in the screen)
                    panUpPixels = ( panUpPixels > coveredHeight ?
                                    coveredHeight : panUpPixels );

                    // Pan up
                    contentView_.setY( -panUpPixels );
                }
            }
            else {
                // Keyboard probably just became hidden

                // Reset pan
                contentView_.setY( 0 );
            }

            // Save usabale height for the next comparison
            priorVisibleHeight_ = currentVisibleHeight;
        }
    }

    private int visibleHeight() {
        Rect r = new Rect();
        contentView_.getWindowVisibleDisplayFrame( r );
        return r.bottom - r.top;
    }

    // Customize this as needed...
    private int viewPortHeight() { return JavaScriptObject.viewPortHeight(); }
    private int focusElementTop( final float ratio ) {
        return (int) (ratio * JavaScriptObject.focusElementTop());
    }
    private int focusElementBottom( final float ratio ) {
        return (int) (ratio * JavaScriptObject.focusElementBottom());
    }

}

---

1）创建KeyboardHeightHelper：

public class KeyboardHeightHelper {

    private final View decorView;
    private int lastKeyboardHeight = -1;

    public KeyboardHeightHelper(Activity activity, View activityRootView, OnKeyboardHeightChangeListener listener) {
        this.decorView = activity.getWindow().getDecorView();
        activityRootView.getViewTreeObserver().addOnGlobalLayoutListener(() -> {
            int keyboardHeight = getKeyboardHeight();
            if (lastKeyboardHeight != keyboardHeight) {
                lastKeyboardHeight = keyboardHeight;
                listener.onKeyboardHeightChange(keyboardHeight);
            }
        });
    }

    private int getKeyboardHeight() {
        Rect rect = new Rect();
        decorView.getWindowVisibleDisplayFrame(rect);
        return decorView.getHeight() - rect.bottom;
    }

    public interface OnKeyboardHeightChangeListener {
        void onKeyboardHeightChange(int keyboardHeight);
    }
}

2）让您的活动全屏：

activity.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);

3）监听键盘高度变化并为您的视图添加底部填充：

View rootView = activity.findViewById(R.id.root); // your root view or any other you want to resize
KeyboardHeightHelper effectiveHeightHelper = new KeyboardHeightHelper(
        activity, 
        rootView,
        keyboardHeight -> rootView.setPadding(0, 0, 0, keyboardHeight));

因此，每次键盘出现在屏幕上时——视图的底部填充都会改变，内容也会重新排列。

---

事实上，无论我在 FullScreen 模式中选择什么 windowSoftInputMode，软键盘的外观似乎都不会以任何方式影响 Activity。

虽然我找不到关于此属性的太多文档，但我认为 FullScreen 模式是为不需要大量使用软键盘的游戏应用程序设计的。如果您的活动需要通过软键盘进行用户交互，请重新考虑使用非全屏主题。您可以使用 NoTitleBar 主题关闭 TitleBar。为什么要隐藏通知栏？

---

保持为 android:windowSoftInputMode="adjustResize"。因为它只保留 "adjustResize" 和 "adjustPan" 中的一个（窗口调整模式是使用 adjustResize 或 adjustPan 指定的。强烈建议您始终指定一个或另一个）。您可以在这里找到它：http://developer.android.com/resources/articles/on-screen-inputs.html

它非常适合我。

---

仅在使用 AdjustPan 时使用 android:windowSoftInputMode="adjustResize|stateHidden 然后禁用调整大小属性

---

我使用 Joseph Johnson 创建了 AndroidBug5497Workaround 类，但在软键盘和视图之间获得了空白。我提到了这个链接 Greg Ennis。在对上述内容进行一些更改后，这是我的最终工作代码。

 public class SignUpActivity extends Activity {

 private RelativeLayout rlRootView; // this is my root layout
 private View rootView;
 private ViewGroup contentContainer;
 private ViewTreeObserver viewTreeObserver;
 private ViewTreeObserver.OnGlobalLayoutListener listener;
 private Rect contentAreaOfWindowBounds = new Rect();
 private FrameLayout.LayoutParams rootViewLayout;
 private int usableHeightPrevious = 0;

 private View mDecorView;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_sign_up);
  mDecorView = getWindow().getDecorView();
  contentContainer =
   (ViewGroup) this.findViewById(android.R.id.content);

  listener = new OnGlobalLayoutListener() {
   @Override
   public void onGlobalLayout() {
    possiblyResizeChildOfContent();
   }
  };

  rootView = contentContainer.getChildAt(0);
  rootViewLayout = (FrameLayout.LayoutParams)
  rootView.getLayoutParams();

  rlRootView = (RelativeLayout) findViewById(R.id.rlRootView);


  rlRootView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
   @Override
   public void onGlobalLayout() {
    int heightDiff = rlRootView.getRootView().getHeight() - rlRootView.getHeight();
    if (heightDiff > Util.dpToPx(SignUpActivity.this, 200)) {
     // if more than 200 dp, it's probably a keyboard...
     //  Logger.info("Soft Key Board ", "Key board is open");

    } else {
     Logger.info("Soft Key Board ", "Key board is CLOSED");

     hideSystemUI();
    }
   }
  });
 }

 // This snippet hides the system bars.
 protected void hideSystemUI() {
  // Set the IMMERSIVE flag.
  // Set the content to appear under the system bars so that the 
  content
  // doesn't resize when the system bars hide and show.
  mDecorView.setSystemUiVisibility(
   View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
 }
 @Override
 protected void onPause() {
  super.onPause();
  if (viewTreeObserver.isAlive()) {
   viewTreeObserver.removeOnGlobalLayoutListener(listener);
  }
 }

 @Override
 protected void onResume() {
  super.onResume();
  if (viewTreeObserver == null || !viewTreeObserver.isAlive()) {
   viewTreeObserver = rootView.getViewTreeObserver();
  }
  viewTreeObserver.addOnGlobalLayoutListener(listener);
 }

 @Override
 protected void onDestroy() {
  super.onDestroy();
  rootView = null;
  contentContainer = null;
  viewTreeObserver = null;
 }
 private void possiblyResizeChildOfContent() {
  contentContainer.getWindowVisibleDisplayFrame(contentAreaOfWindowBounds);

  int usableHeightNow = contentAreaOfWindowBounds.height();

  if (usableHeightNow != usableHeightPrevious) {
   rootViewLayout.height = usableHeightNow;
   rootView.layout(contentAreaOfWindowBounds.left,
    contentAreaOfWindowBounds.top, contentAreaOfWindowBounds.right, contentAreaOfWindowBounds.bottom);
   rootView.requestLayout();

   usableHeightPrevious = usableHeightNow;
  } else {

   this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
  }
 }
}

---

基于 https://stackoverflow.com/a/19494006/1815624 并希望实现它...

更新的想法

结合来自的答案

https://stackoverflow.com/a/19494006/1815624

https://stackoverflow.com/a/10952394/1815624

相关代码：

        if (heightDifference > (usableHeightSansKeyboard / 4)) {

            // keyboard probably just became visible
            frameLayoutParams.height = usableHeightSansKeyboard - heightDifference;
            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
            activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
        } else {

            // keyboard probably just became hidden
            if(usableHeightPrevious != 0) {
                frameLayoutParams.height = usableHeightSansKeyboard;
                activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
                activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

            }

https://github.com/CrandellWS/AndroidBug5497Workaround/blob/master/AndroidBug5497Workaround.java 的完整源代码

旧观念

在打开键盘之前创建容器高度的静态值在键盘打开时根据usableHeightSansKeyboard - heightDifference设置容器高度，在键盘关闭时将其设置回保存的值

if (heightDifference > (usableHeightSansKeyboard / 4)) {
                // keyboard probably just became visible
                frameLayoutParams.height = usableHeightSansKeyboard - heightDifference;
                int mStatusHeight = getStatusBarHeight();
                frameLayoutParams.topMargin = mStatusHeight;
                ((MainActivity)activity).setMyMainHeight(usableHeightSansKeyboard - heightDifference);

                if(BuildConfig.DEBUG){
                    Log.v("aBug5497", "keyboard probably just became visible");
                }
            } else {
                // keyboard probably just became hidden
                if(usableHeightPrevious != 0) {
                    frameLayoutParams.height = usableHeightSansKeyboard;
                    ((MainActivity)activity).setMyMainHeight();    
                }
                frameLayoutParams.topMargin = 0;

                if(BuildConfig.DEBUG){
                    Log.v("aBug5497", "keyboard probably just became hidden");
                }
            }

MainActivity 中的方法

public void setMyMainHeight(final int myMainHeight) {

    runOnUiThread(new Runnable() {
        @Override
        public void run() {
            ConstraintLayout.LayoutParams rLparams =  (ConstraintLayout.LayoutParams) myContainer.getLayoutParams();
            rLparams.height = myMainHeight;

            myContainer.setLayoutParams(rLparams);
        }

    });

}

int mainHeight = 0;
public void setMyMainHeight() {

    runOnUiThread(new Runnable() {
        @Override
        public void run() {
            ConstraintLayout.LayoutParams rLparams =  (ConstraintLayout.LayoutParams) myContainer.getLayoutParams();
            rLparams.height = mainHeight;

            myContainer.setLayoutParams(rLparams);
        }

    });

}

示例容器 XML

<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
        <android.support.constraint.ConstraintLayout
            android:id="@+id/my_container"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            app:layout_constraintHeight_percent=".8">

如果需要，可以添加类似的边距...

另一个考虑因素是使用填充，可以在以下位置找到一个示例：

https://github.com/mikepenz/MaterialDrawer/issues/95#issuecomment-80519589

---

您希望底栏粘在视图的底部，但是当显示键盘时，它们应该向上移动以放置在键盘上方，对吗？

你可以试试这个代码片段：

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    ...>

    <RelativeLayout
        android:id="@+id/RelativeLayoutTopBar"
    ...>
    </RelativeLayout>

    <LinearLayout
        android:id="@+id/LinearLayoutBottomBar"
        android:layout_alignParentBottom = true
        ...>
    </LinearLayout>

    <LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="390dp"
    android:orientation="vertical" 
    android:layout_above="@+id/LinearLayoutBottomBar"
    android:layout_below="@+id/RelativeLayoutTopBar"> 

    <ScrollView 
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:layout_marginBottom="10dp"
        android:id="@+id/ScrollViewBackground">

            ...

        </ScrollView>
     </LinearLayout>
  </RelativeLayout>

BottomBar 将粘在视图的底部，包含 ScrollView 的 LinearLayout 将在显示顶部/底部栏和键盘后占据视图的左侧。让我知道它是否也适合你。

---

谢谢约瑟夫的回答。然而，在方法 possibleResizeChildOfContent() 中，部分

else {
            // keyboard probably just became hidden
            frameLayoutParams.height = usableHeightSansKeyboard;
        }

对我不起作用，因为视图的下部被隐藏了。所以我不得不取一个全局变量restoreHeight，在构造函数中，我插入了最后一行

restoreHeight = frameLayoutParams.height;

然后我将前面提到的部分替换为

else {
            // keyboard probably just became hidden
            frameLayoutParams.height = restoreHeight;
        }

但我不知道为什么你的代码对我不起作用。如果有人能阐明这一点，那将有很大帮助。

---

我只是使用全屏模式来隐藏状态栏。但是，我希望应用程序在显示键盘时调整大小。所有其他解决方案（可能由于发布时间）对我来说都很复杂或无法使用（希望避免更改 Java 代码以解雇 PhoneGap Build）。

我没有使用全屏，而是将我的 Android 配置修改为非全屏：

            <preference name="fullscreen" value="false" />

并通过命令行添加 cordova-plugin-statusbar：

cordova plugin add cordova-plugin-statusbar

当应用程序加载后，我简单地调用插件上的一个方法来隐藏自己，比如：

    if (window.cordova && window.cordova.platformId == 'android' && window.StatusBar)
        window.StatusBar.hide();

这就像一个魅力。唯一真正的缺点是状态栏在应用程序加载时短暂可见。对于我的需要，这不是问题。

---

我已经从 stackOverflow 中尝试了所有可能的答案，最后我在经过一周的 Long search 后解决了。我使用了坐标布局，并用 linearLayout 改变了它，我的问题得到了解决。我不知道坐标布局可能有错误或任何我的错误。

---

我尝试了许多解决方案，包括 Joseph Johnson 和 Johan Stuyts。但结果，在所有情况下，我在某些设备（如联想 s820）上的内容和键盘之间都有空白。因此，我对他们的代码进行了一些更改，最终得到了可行的解决方案。

我的想法基于在显示键盘时在内容顶部添加边距。

contentContainer.getWindowVisibleDisplayFrame(contentAreaOfWindowBounds);
    int usableHeightNow = contentAreaOfWindowBounds.height();

    if (usableHeightNow != usableHeightPrevious) {

        int difference = usableHeightNow - usableHeightPrevious;

        if (difference < 0 && difference < -150) {
            keyboardShowed = true;
            rootViewLayout.topMargin -= difference + 30;
            rootViewLayout.bottomMargin += 30;
        }
        else if (difference < 0 && difference > -150){
            rootViewLayout.topMargin -= difference + 30;
        }
        else if (difference > 0 && difference > 150) {
            keyboardShowed = false;
            rootViewLayout.topMargin = 0;
            rootViewLayout.bottomMargin = 0;
        }

        rootView.requestLayout();

        Log.e("Bug Workaround", "Difference: " + difference);

        usableHeightPrevious = usableHeightNow;
}

如您所见，我在差异上添加了 30 像素，因为在屏幕顶部和带有边距的内容区域之间有一个小的空白区域。而且我不知道它是从哪里出现的，所以我决定只缩小边距，现在它完全按照我的需要工作。

---

今天在全屏问题上不工作的adjustResize对于android sdk来说是实际的。

https://i.stack.imgur.com/yHjgS.jpg

我发现 the solution 并删除了一项不必要的操作：

this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);

因此，请参阅我在 Kotlin 上的固定解决方案代码：

class AndroidBug5497Workaround constructor(val activity: Activity) {

    private val content = activity.findViewById<View>(android.R.id.content) as FrameLayout

    private val mChildOfContent = content.getChildAt(0)
    private var usableHeightPrevious: Int = 0
    private val contentContainer = activity.findViewById(android.R.id.content) as ViewGroup
    private val rootView = contentContainer.getChildAt(0)
    private val rootViewLayout = rootView.layoutParams as FrameLayout.LayoutParams

    private val listener = {
        possiblyResizeChildOfContent()
    }

    fun addListener() {
        mChildOfContent.apply {
            viewTreeObserver.addOnGlobalLayoutListener(listener)

        }
    }

    fun removeListener() {
        mChildOfContent.apply {
            viewTreeObserver.removeOnGlobalLayoutListener(listener)
        }
    }

    private fun possiblyResizeChildOfContent() {
        val contentAreaOfWindowBounds = Rect()
        mChildOfContent.getWindowVisibleDisplayFrame(contentAreaOfWindowBounds)
        val usableHeightNow = contentAreaOfWindowBounds.height()

        if (usableHeightNow != usableHeightPrevious) {
            rootViewLayout.height = usableHeightNow
            rootView.layout(contentAreaOfWindowBounds.left,
                    contentAreaOfWindowBounds.top, contentAreaOfWindowBounds.right, contentAreaOfWindowBounds.bottom);
            mChildOfContent.requestLayout()
            usableHeightPrevious = usableHeightNow
        }
    }
}

我的错误修复工具代码：

 class LeaveDetailActivity : BaseActivity(){

    private val keyBoardBugWorkaround by lazy {
        AndroidBug5497Workaround(this)
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

    }

    override fun onResume() {
        keyBoardBugWorkaround.addListener()
        super.onResume()
    }

    override fun onPause() {
        keyBoardBugWorkaround.removeListener()
        super.onPause()
    }
}

---

private void resizeWindowOnKeyboardVisible() {
            RelativeLayout rootLayout;
            rootLayout = findViewById(R.id.rootLayout);
            this.getWindow().getDecorView().getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
    
                ViewGroup.LayoutParams layoutParams = rootLayout.getLayoutParams();
                int height ;
    
                @Override
                public void onGlobalLayout() {
                    Rect r = new Rect();
                    getWindow().getDecorView().getWindowVisibleDisplayFrame(r);
                    int screenHeight = rootLayout.getContext().getResources().getDisplayMetrics().heightPixels;
                    int heightDiff = screenHeight - r.bottom;
    
                    if (heightDiff > screenHeight*0.15)
                    {
                        height = screenHeight - heightDiff;
                        layoutParams.height=height;
                        rootLayout.setLayoutParams(layoutParams);
                    }else{
                        height=ViewGroup.LayoutParams.MATCH_PARENT;
                        if( height!=layoutParams.height) {
                            layoutParams.height = height;
                            rootLayout.setLayoutParams(layoutParams);
                        }
                    }
                }
            });
        }

使用 android:windowSoftInputMode="adjustResize|stateHidden 可能并非在所有情况下都有效，并且 android:fitsSystemWindows="true 在您使用 SYSTEM_UI_FLAG_FULLSCREEN 标记时也无济于事。要在键盘可见时调整视图/窗口/webview，请执行以下操作。

使用 RelativeLayout 作为根布局。

在活动中声明上述方法 resizeWindowOnKeyboardVisible() 并在 onCreate() 方法中的 setContentView() 之后调用它。

它也适用于 Android 11 (API 30)。

---

还有另一种方法，无需创建自己的帮助类或计算屏幕高度的函数。而是使用 ViewCompat.setOnApplyWindowInsetsListener。使用监听器，您可以检查键盘是否打开并根据键盘高度设置底部填充。

// the root view of your webview, e.g FrameLayout or LinearLayout
    rootView = view.findViewById(R.id.whatever);
    
    ViewCompat.setOnApplyWindowInsetsListener(rootView, (webView, insets) -> {
        
        // checks if keyboard is visible, the Type.ime() stands for Input Method
        boolean isKeyboardVisible = insets.isVisible(WindowInsetsCompat.Type.ime());
        
        // get the keyboard height and use the height as bottom padding for your view
        int bottomKeyboardPadding = insets.getInsets(WindowInsetsCompat.Type.ime()).bottom;

        
        if (isKeyboardVisible) { webView.setPadding(0, 0, 0, bottomKeyboardPadding); }
        else { webView.setPadding(0, 0, 0, 0); }

        return insets;
    });

---

就我而言，一旦我将 Crosswalk 添加到我的 Cordova 应用程序，这个问题就开始发生了。我的应用程序未在全屏和 android:windowSoftInputMode="adjustPan" 中使用。

我已经在应用程序中安装了离子键盘插件，因此检测键盘是向上还是向下很容易，这要归功于它：

// Listen for events to when the keyboard is opened and closed
window.addEventListener("native.keyboardshow", keyboardUp, false);
window.addEventListener('native.keyboardhide', keyboardDown, false);

function keyboardUp()
{
    $('html').addClass('keyboardUp');
}

function keyboardDown()
{
    $('html').removeClass('keyboardUp');
}

我尝试了上面的所有修复，但最终为我做的简单的一行是这点 css：

&.keyboardUp {
        overflow-y: scroll;
}

希望这可以节省我花在这上面的几天。 :)

---

不要使用：

getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

因为效果不好。取而代之的是，使用：

fun setFullScreen(fullScreen: Boolean) {
        val decorView = getWindow().getDecorView()
        val uiOptions : Int
        if(fullScreen){
            uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN // this hide statusBar
            toolbar.visibility = View.GONE // if you use toolbar
            tabs.visibility = View.GONE // if you use tabLayout
        } else {
            uiOptions = View.SYSTEM_UI_FLAG_VISIBLE // this show statusBar
            toolbar.visibility = View.VISIBLE
            tabs.visibility = View.VISIBLE
        }
        decorView.setSystemUiVisibility(uiOptions)
    }

---