| /* |
| * Copyright 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.example.androidx.car; |
| |
| import android.app.ListActivity; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.os.Bundle; |
| import android.text.TextUtils; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.BaseAdapter; |
| import android.widget.ListView; |
| import android.widget.TextView; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Home activity for car support library samples. |
| */ |
| public class SupportCarDemoActivity extends ListActivity { |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| setListAdapter(new SampleAdapter(querySampleActivities())); |
| } |
| |
| @Override |
| protected void onListItemClick(ListView lv, View v, int pos, long id) { |
| SampleInfo info = (SampleInfo) getListAdapter().getItem(pos); |
| startActivity(info.mIntent); |
| } |
| |
| protected List<SampleInfo> querySampleActivities() { |
| Intent intent = new Intent(Intent.ACTION_MAIN, null); |
| intent.setPackage(getPackageName()); |
| intent.addCategory(Intent.CATEGORY_SAMPLE_CODE); |
| |
| PackageManager pm = getPackageManager(); |
| List<ResolveInfo> infos = pm.queryIntentActivities(intent, 0); |
| |
| ArrayList<SampleInfo> samples = new ArrayList<>(); |
| |
| final int count = infos.size(); |
| for (int i = 0; i < count; i++) { |
| final ResolveInfo info = infos.get(i); |
| final CharSequence labelSeq = info.loadLabel(pm); |
| String label = TextUtils.isEmpty(labelSeq) |
| ? info.activityInfo.name |
| : labelSeq.toString(); |
| |
| Intent target = new Intent(); |
| target.setClassName(info.activityInfo.applicationInfo.packageName, |
| info.activityInfo.name); |
| SampleInfo sample = new SampleInfo(label, target); |
| samples.add(sample); |
| } |
| |
| return samples; |
| } |
| |
| static class SampleInfo { |
| String mName; |
| Intent mIntent; |
| |
| SampleInfo(String name, Intent intent) { |
| this.mName = name; |
| this.mIntent = intent; |
| } |
| } |
| |
| class SampleAdapter extends BaseAdapter { |
| private List<SampleInfo> mItems; |
| |
| SampleAdapter(List<SampleInfo> items) { |
| mItems = items; |
| } |
| |
| @Override |
| public int getCount() { |
| return mItems.size(); |
| } |
| |
| @Override |
| public Object getItem(int position) { |
| return mItems.get(position); |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| return position; |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| if (convertView == null) { |
| convertView = getLayoutInflater().inflate(android.R.layout.simple_list_item_1, |
| parent, false); |
| convertView.setTag(convertView.findViewById(android.R.id.text1)); |
| } |
| TextView tv = (TextView) convertView.getTag(); |
| tv.setText(mItems.get(position).mName); |
| return convertView; |
| } |
| |
| } |
| } |