DialogFragment and force to show keyboard

问题

I have a problem with my DialogFragment. So to create my view, I use the method described on the android blog. Here is my DialogFragment

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    final View myLayout = inflater.inflate(R.layout.dialog_connect, null);

    edit = (EditText) myLayout.findViewById(R.id.password_edit);
    edit.requestFocus();
    getDialog().getWindow().setSoftInputMode(LayoutParams.SOFT_INPUT_STATE_VISIBLE);

    return myLayout;
}

If I use onCreateView(), it works but I would like create an AlterDialog and to do this, I have the following code :

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    // Inflate and set the layout for the dialog
    // Pass null as the parent view because its going in the dialog layout
    builder
           .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int id) {
                    callback.onYesConnectClick(edit.getText().toString());
                }
            })
            .setNegativeButton(R.string.refuse, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int id) {
                    callback.onNoConnectClick();
                }
            });

    return builder.create();
}

If I comment the code from onCreateView(), the app works but I can't force the keyboard to be shown and if I uncomment onCreateView(), I get a crash. Here is the stack trace :

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.test/com.test.ProfileActivity_}: android.util.AndroidRuntimeException:     requestFeature() must be called before adding content
AndroidRuntime at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2312)
AndroidRuntime at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:2362)
AndroidRuntime at android.app.ActivityThread.access$600(ActivityThread.java:156)
AndroidRuntime at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1250)
AndroidRuntime at android.os.Handler.dispatchMessage(Handler.java:99)
AndroidRuntime at android.os.Looper.loop(Looper.java:137)
AndroidRuntime at android.app.ActivityThread.main(ActivityThread.java:5229)
AndroidRuntime at java.lang.reflect.Method.invokeNative(Native Method)
AndroidRuntime at java.lang.reflect.Method.invoke(Method.java:525)
AndroidRuntime at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:799)
AndroidRuntime at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:566)
AndroidRuntime at dalvik.system.NativeStart.main(Native Method)
AndroidRuntime Caused by: android.util.AndroidRuntimeException: requestFeature() must be called before adding content

So my question ==> Can I use the AlertDialog and show the keyboard when the dialog appears ?

回答1:

override onActivityCreated in your dialogfragment and put getDialog().getWindow().setSoftInputMode(LayoutParams.SOFT_INPUT_STATE_VISIBLE); in there

回答2:

The answer of tyczj does not work for me.

The solution was, inside onCreateDialog

Dialog d = builder.create();
d.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
return d;

In the end, the code would be like this

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    // Inflate and set the layout for the dialog
    // Pass null as the parent view because its going in the dialog layout
    builder
           .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int id) {
                    callback.onYesConnectClick(edit.getText().toString());
                }
            })
            .setNegativeButton(R.string.refuse, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int id) {
                    callback.onNoConnectClick();
                }
            });

    Dialog d = builder.create();
        d.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
return d;
}

回答3:

Use "SOFT_INPUT_STATE_ALWAYS_VISIBLE" instead of "SOFT_INPUT_STATE_VISIBLE" either in onActivityCreated or onCreateDialog method.

回答4:

Watch out for the setLayout() call if you use it. It took me a while to realize that it may override your window's attributes. After wrapping it into a handler, the accepted solution worked for me.

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    final Dialog dialog = super.onCreateDialog(savedInstanceState);
    dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);

    return dialog;
}

@Override
public void onStart() {
    super.onStart();

    // without a handler, the window sizes itself correctly
    // but the keyboard does not show up
    new Handler().post(new Runnable() {
        @Override
        public void run() {
            getDialog().getWindow().setLayout(DIALOG_WIDTH, DIALOG_HEIGHT);
        }
    });
}

来源：https://stackoverflow.com/questions/17237952/dialogfragment-and-force-to-show-keyboard