public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ListView listView = new ListView(this);
List<Map<String, Object>> data = getData();
SimpleAdapter adapter = new SimpleAdapter(this, data, android.R.layout.simple_list_item_2,
new String[]{"appName", "pkgName"},
new int[]{android.R.id.text1, android.R.id.text2});
listView.setAdapter(adapter);
setContentView(listView);
}
/**
* 获取系统中所有应用数据
*
* @return 系统中所有应用数据列表
*/
private List<Map<String, Object>> getData() {
List<Map<String, Object>> data = new ArrayList<>();
List<PackageInfo> packageInfos = getPackageManager().getInstalledPackages(0);
for (PackageInfo packageInfo : packageInfos) {
HashMap<String, Object> map = new HashMap<>(16);
map.put("appName", packageInfo.applicationInfo.loadLabel(getPackageManager()).toString());
map.put("pkgName", packageInfo.packageName);
//以下三个为扩展数据
map.put("versionName", packageInfo.versionName);
map.put("versionCode", packageInfo.versionCode);
map.put("drawable", packageInfo.applicationInfo.loadIcon(getPackageManager()));
data.add(map);
}
return data;
}
}
微信图片_20180905213734.jpg
