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      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
     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
     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
     79   public void onDestroy() {
     80     super.onDestroy();
     81     getSupportLoaderManager().destroyLoader(LOADER_ID);
     82   }
     83 
     84   @Override
     85   public Loader<List<License>> onCreateLoader(int id, Bundle args) {
     86     return new LicenseLoader(this);
     87   }
     88 
     89   @Override
     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
     97   public void onLoaderReset(Loader<List<License>> loader) {
     98     listAdapter.clear();
     99     listAdapter.notifyDataSetChanged();
    100   }
    101 }
    102