1 /*
2  * Copyright (C) 2007 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.apis.view;
18 
19 import com.example.android.apis.R;
20 
21 import android.app.Activity;
22 import android.content.Intent;
23 import android.content.pm.ResolveInfo;
24 import android.os.Bundle;
25 import android.view.View;
26 import android.view.ViewGroup;
27 import android.widget.BaseAdapter;
28 import android.widget.GridView;
29 import android.widget.ImageView;
30 
31 import java.util.List;
32 
33 public class LayoutAnimation6 extends Activity {
34     @Override
onCreate(Bundle savedInstanceState)35     protected void onCreate(Bundle savedInstanceState) {
36         super.onCreate(savedInstanceState);
37 
38         loadApps();
39 
40         setContentView(R.layout.layout_animation_6);
41         GridView grid = (GridView) findViewById(R.id.grid);
42         grid.setAdapter(new AppsAdapter());
43     }
44 
45     private List<ResolveInfo> mApps;
46 
loadApps()47     private void loadApps() {
48         Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
49         mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
50 
51         mApps = getPackageManager().queryIntentActivities(mainIntent, 0);
52     }
53 
54     public class AppsAdapter extends BaseAdapter {
getView(int position, View convertView, ViewGroup parent)55         public View getView(int position, View convertView, ViewGroup parent) {
56             ImageView i = new ImageView(LayoutAnimation6.this);
57 
58             ResolveInfo info = mApps.get(position % mApps.size());
59 
60             i.setImageDrawable(info.activityInfo.loadIcon(getPackageManager()));
61             i.setScaleType(ImageView.ScaleType.FIT_CENTER);
62             final int w = (int) (36 * getResources().getDisplayMetrics().density + 0.5f);
63             i.setLayoutParams(new GridView.LayoutParams(w, w));
64             return i;
65         }
66 
67 
getCount()68         public final int getCount() {
69             return Math.min(32, mApps.size());
70         }
71 
getItem(int position)72         public final Object getItem(int position) {
73             return mApps.get(position % mApps.size());
74         }
75 
getItemId(int position)76         public final long getItemId(int position) {
77             return position;
78         }
79     }
80 
81 }
82