when using AlertDialog.Builder with EditText, the Soft Keyboard doesn't pop

I've made such a thing

AlertDialog.Builder b = new AlertDialog.Builder(this);//....
AlertDialog dialog = b.create();

dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);

dialog.show();

I've managed to solve it like this:

Dialog = builder.create();
Dialog.show();
Dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE  | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
Dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);

I found out that the same code works properly on Tablet, the keyboard does pop up, but on Phone it doesn't, so researching further, seems to point to the "adjust" option.

I am using this, feels much cleaner.

AlertDialog d = builder.create();
d.getWindow().setSoftInputMode(
    WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
d.show();

In my case the only way I was able to show the keyboard when the Dialog was shown was by adding to my DialogFragment:

@Override
public void onResume() {
    super.onResume();
    getDialog().getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
    getDialog().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
    myEditText.requestFocus();
}

Note the SOFT_INPUT_STATE_ALWAYS_VISIBLE instead of SOFT_INPUT_STATE_VISIBLE. From documentation:

// Visibility state for softInputMode: please always make the soft input 
// area visible when this window receives input focus.
int SOFT_INPUT_STATE_ALWAYS_VISIBLE;

When you call showDialog() to show a Dialog created using AlertDialog in onCreateDialog()

You should put the code in onPrepareDialog():

@Override
protected void onPrepareDialog (int id, Dialog dialog, Bundle args)
{
    TextView editText=(TextView) dialog.findViewById(R....);

    editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
       @Override
       public void onFocusChange(View v, boolean hasFocus) {
         if (hasFocus) {
            dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
         }
       }
    });
}

A much better solution is given here.

dialog.getWindow().clearFlags(
         WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
        |WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);

No workaround. EditText behaves as expected.

In my case, the SoftInputMode wasn't getting displayed when I set it which was before showing the dialog (after creating it). The below code worked for me where I set the SoftInputMode after showing the dialog.

Kotlin:

val dialog = MaterialAlertDialogBuilder(context) // Other builder code
                .create()
dialog.show()
dialog.window?.apply { // After the window is created, get the SoftInputMode
    clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE)
    clearFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM)
    setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE)
}

Java:

AlertDialog dialog = MaterialAlertDialogBuilder(getContext()) // Other builder code
                .create();
dialog.show();
Window window = dialog.getWindow();
if(window != null){ // After the window is created, get the SoftInputMode
    window.clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
    window.clearFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
    window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
}

I hope this helps anyone who was having the same problem as me.

Window window = dialog.getWindow();
    window.clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
    window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);

This was answered here already. Using an OnFocusChangeListener worked for me.

Try this, its working for me

If you want to display soft keyboard:

InputMethodManager imm = (InputMethodManager)getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
                    imm.showSoftInput(input.getWindowToken(), 0);

And if you want to hide the it:

  InputMethodManager imm = (InputMethodManager)getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.hideSoftInputFromWindow(input.getWindowToken(), 0);

final AlertDialog.Builder alert = new AlertDialog.Builder(context);

final AlertDialog dialog = alert.show();
dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);

This problem occurs when EditText is added after AlertDialog.onCreate is called.

https://developer.android.com/reference/androidx/appcompat/app/AlertDialog.Builder

The AlertDialog class takes care of automatically setting android.view.WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM for you based on whether any views in the dialog return true from View.onCheckIsTextEditor().

You need to clear the FLAG_ALT_FOCUSABLE_IM flag.

getWindow().clearFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM); 

Because AlertDialog.show is called in the DialogFragment.onStart, you can insert the code in the DialogFragment.onStart.

@Override
public void onStart() {
    super.onStart();
    getDialog().getWindow().clearFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
}

Or you can use the Dialog.setOnShowListener if you do not use a DialogFragment.

dialog.setOnShowListener(new DialogInterface.OnShowListener() {
    @Override
    public void onShow(DialogInterface dialog) {
        getDialog().getWindow().clearFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
    }
});

Try this, its working for me

    Window window = dialog.getWindow();
    if (window != null) { // After the window is created, get the SoftInputMode
        window.clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
        window.clearFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
        window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
    }

I found an easy and reliable solution to this, just put a hidden EditText on root of your dialog layout if you got a complex layout which an editable field isn't in root,

<!-- Just to trick AlertDialog to not hide soft keyboard -->
<EditText
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:visibility="gone" />

This is basically to trick this part of compat/androidx.

I used to use onResume solution above but with that I couldn't use simpler API of AlertDialog.Builder() to remove the use of AppCompatDialogFragment but now I can simply use the easier API.