Android：GridView类似桌面显示所有应用
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 public class MainActivity extends Activity { private List<ResolveInfo> mApps = null ; private ArrayList<HashMap<String, Object>> data = null ; private HashMap<String, Object> hashMap = null ; class ViewHolder { ImageView viewImg; TextView viewName; } @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); loadapp(); setContentView(R.layout.activity_main); GridView gridView = (GridView) findViewById(R.id.gridView1); BaseAdapter adapter = new BaseAdapter() { @Override public View getView( int position, View convertView, ViewGroup parent) { LinearLayout layout; ViewHolder holder = new ViewHolder(); if (convertView == null ) { LayoutInflater inflater = getLayoutInflater(); layout = (LinearLayout) inflater.inflate(R.layout.linelayout, null ); holder.viewImg = (ImageView) layout.findViewById(R.id.imageView1); holder.viewName = (TextView) layout.findViewById(R.id.textView1); layout.setTag(holder); } else { layout = (LinearLayout) convertView; holder = (ViewHolder) layout.getTag(); } ResolveInfo info = mApps.get(position); holder.viewImg.setImageDrawable(info.activityInfo.loadIcon(getPackageManager())); holder.viewName.setText(info.activityInfo.loadLabel(getPackageManager()).toString()); return layout; } @Override public long getItemId( int position) { return position; } @Override public Object getItem( int position) { return mApps.get(position); } @Override public int getCount() { return mApps.size(); } }; gridView.setAdapter(adapter); } private void loadapp() { Intent intent = new Intent(Intent.ACTION_MAIN, null ); intent.addCategory(Intent.CATEGORY_LAUNCHER); mApps = getPackageManager().queryIntentActivities(intent, 0 ); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true ; } } 本文转自 glblong 51CTO博客，原文链接：http://blog.51cto.com/glblong/1218512，如需转载请自行联系原作者
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