1 /*
2  * Copyright (C) 2017 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.android.dialer.about;
18 
19 import android.content.Intent;
20 import android.os.Bundle;
21 import android.support.v4.app.LoaderManager.LoaderCallbacks;
22 import android.support.v4.content.Loader;
23 import android.support.v7.app.AppCompatActivity;
24 import android.view.MenuItem;
25 import android.view.View;
26 import android.widget.AdapterView;
27 import android.widget.AdapterView.OnItemClickListener;
28 import android.widget.ArrayAdapter;
29 import android.widget.ListView;
30 import java.util.ArrayList;
31 import java.util.List;
32 
33 /** An Activity listing third party libraries with notice licenses. */
34 public final class LicenseMenuActivity extends AppCompatActivity
35     implements LoaderCallbacks<List<License>> {
36 
37   static final String ARGS_LICENSE = "license";
38 
39   private static final int LOADER_ID = 54321;
40 
41   private ArrayAdapter<License> listAdapter;
42 
43   @Override
onCreate(Bundle savedInstanceState)44   protected void onCreate(Bundle savedInstanceState) {
45     super.onCreate(savedInstanceState);
46     setContentView(R.layout.license_menu_activity);
47 
48     if (getSupportActionBar() != null) {
49       getSupportActionBar().setDisplayHomeAsUpEnabled(true);
50     }
51 
52     listAdapter = new ArrayAdapter<>(this, R.layout.license, R.id.license, new ArrayList<>());
53     getSupportLoaderManager().initLoader(LOADER_ID, null, this);
54     ListView listView = (ListView) findViewById(R.id.license_list);
55     listView.setAdapter(listAdapter);
56     listView.setOnItemClickListener(
57         new OnItemClickListener() {
58           @Override
59           public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
60             License license = (License) parent.getItemAtPosition(position);
61             Intent licenseIntent = new Intent(LicenseMenuActivity.this, LicenseActivity.class);
62             licenseIntent.putExtra(ARGS_LICENSE, license);
63             startActivity(licenseIntent);
64           }
65         });
66   }
67 
68   @Override
onOptionsItemSelected(MenuItem item)69   public boolean onOptionsItemSelected(MenuItem item) {
70     if (item.getItemId() == android.R.id.home) {
71       // Go back one place in the history stack, if the app icon is clicked.
72       finish();
73       return true;
74     }
75     return super.onOptionsItemSelected(item);
76   }
77 
78   @Override
onDestroy()79   public void onDestroy() {
80     super.onDestroy();
81     getSupportLoaderManager().destroyLoader(LOADER_ID);
82   }
83 
84   @Override
onCreateLoader(int id, Bundle args)85   public Loader<List<License>> onCreateLoader(int id, Bundle args) {
86     return new LicenseLoader(this);
87   }
88 
89   @Override
onLoadFinished(Loader<List<License>> loader, List<License> licenses)90   public void onLoadFinished(Loader<List<License>> loader, List<License> licenses) {
91     listAdapter.clear();
92     listAdapter.addAll(licenses);
93     listAdapter.notifyDataSetChanged();
94   }
95 
96   @Override
onLoaderReset(Loader<List<License>> loader)97   public void onLoaderReset(Loader<List<License>> loader) {
98     listAdapter.clear();
99     listAdapter.notifyDataSetChanged();
100   }
101 }
102