package com.stoutner.privacybrowser;
-import android.app.Activity;
+import android.annotation.SuppressLint;
import android.app.Dialog;
-import android.app.DialogFragment;
+import android.content.Context;
import android.content.DialogInterface;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
+import android.support.annotation.NonNull;
// If we don't use android.support.v7.app.AlertDialog instead of android.app.AlertDialog then the dialog will be covered by the keyboard.
import android.support.v7.app.AlertDialog;
+// We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <=22.
+import android.support.v7.app.AppCompatDialogFragment;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.EditText;
-public class CreateHomeScreenShortcut extends DialogFragment {
+public class CreateHomeScreenShortcut extends AppCompatDialogFragment {
// The public interface is used to send information back to the parent activity.
public interface CreateHomeScreenSchortcutListener {
- void onCreateHomeScreenShortcut(DialogFragment dialogFragment);
+ void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment);
}
//`createHomeScreenShortcutListener` is used in `onAttach()` and `onCreateDialog()`.
private CreateHomeScreenSchortcutListener createHomeScreenShortcutListener;
// Check to make sure that the parent activity implements the listener.
- public void onAttach(Activity parentActivity) {
- super.onAttach(parentActivity);
+ public void onAttach(Context context) {
+ super.onAttach(context);
try {
- createHomeScreenShortcutListener = (CreateHomeScreenSchortcutListener) parentActivity;
+ createHomeScreenShortcutListener = (CreateHomeScreenSchortcutListener) context;
} catch(ClassCastException exception) {
- throw new ClassCastException(parentActivity.toString() + " must implement CreateHomeScreenShortcutListener.");
+ throw new ClassCastException(context.toString() + " must implement CreateHomeScreenShortcutListener.");
}
}
+ // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
+ @SuppressLint("InflateParams")
@Override
+ @NonNull
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Get the activity's layout inflater.
LayoutInflater layoutInflater = getActivity().getLayoutInflater();
// Create an `AlertDialog` from the `AlertDialog.Builder`.
final AlertDialog alertDialog = dialogBuilder.create();
+ // Remove the warning below that `setSoftInputMode` might produce `java.lang.NullPointerException`.
+ assert alertDialog.getWindow() != null;
+
// Show the keyboard when the Dialog is displayed on the screen.
alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);