[小代码]获得已安装应用程序的列表

列出所有已安装的应用程序：

[java]
ListView lView;
List results = new ArrayList();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lView = (ListView) findViewById(R.id.listView1);

PackageManager pm = this.getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);

List list = pm.queryIntentActivities(intent, PackageManager.PERMISSION_GRANTED);

for (ResolveInfo rInfo : list) {
results.add(rInfo.activityInfo.applicationInfo.loadLabel(pm).toString());
}

lView.setAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, results));

ListView lView;
List results = new ArrayList();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lView = (ListView) findViewById(R.id.listView1);

PackageManager pm = this.getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);

List list = pm.queryIntentActivities(intent, PackageManager.PERMISSION_GRANTED);

for (ResolveInfo rInfo : list) {
results.add(rInfo.activityInfo.applicationInfo.loadLabel(pm).toString());
}

lView.setAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, results));
}