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      1 /**
      2  * Copyright (c) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.android.multidisplay.launcher;
     18 
     19 import android.os.Bundle;
     20 import android.view.LayoutInflater;
     21 import android.view.View;
     22 import android.view.ViewGroup;
     23 import android.widget.GridView;
     24 
     25 import com.example.android.multidisplay.R;
     26 
     27 import androidx.fragment.app.DialogFragment;
     28 
     29 /**
     30  * Callback to be invoked when an app was picked.
     31  */
     32 interface AppPickedCallback {
     33     void onAppPicked(AppEntry appEntry);
     34 }
     35 
     36 /**
     37  * Dialog that provides the user with a list of available apps to pin to the home screen.
     38  */
     39 public class PinnedAppPickerDialog extends DialogFragment {
     40 
     41     private AppListAdapter mAppListAdapter;
     42     private AppPickedCallback mAppPickerCallback;
     43 
     44     public PinnedAppPickerDialog() {
     45     }
     46 
     47     public static PinnedAppPickerDialog newInstance(AppListAdapter appListAdapter,
     48             AppPickedCallback callback) {
     49         PinnedAppPickerDialog frag = new PinnedAppPickerDialog();
     50         frag.mAppListAdapter = appListAdapter;
     51         frag.mAppPickerCallback = callback;
     52         return frag;
     53     }
     54 
     55     @Override
     56     public View onCreateView(LayoutInflater inflater, ViewGroup container,
     57             Bundle savedInstanceState) {
     58         return inflater.inflate(R.layout.app_picker_dialog, container);
     59     }
     60 
     61     @Override
     62     public void onViewCreated(View view, Bundle savedInstanceState) {
     63         super.onViewCreated(view, savedInstanceState);
     64 
     65         GridView appGridView = view.findViewById(R.id.picker_app_grid);
     66         appGridView.setAdapter(mAppListAdapter);
     67         appGridView.setOnItemClickListener((adapterView, itemView, position, id) -> {
     68             final AppEntry entry = mAppListAdapter.getItem(position);
     69             mAppPickerCallback.onAppPicked(entry);
     70             dismiss();
     71         });
     72     }
     73 }