获取到Android设备里的所有应用程序的名字与包名

public class MainActivity extends Activity {
	int i = 1;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		getAllAppNamesPackages();
	}

	private void getAllAppNamesPackages() {
		// TODO Auto-generated method stub
		PackageManager pm = getPackageManager();
		List list = pm
				.getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES);
		for (PackageInfo packageInfo : list) {
			// 获取到设备上已经安装的应用的名字,即在AndriodMainfest中的app_name。
			String appName = packageInfo.applicationInfo.loadLabel(
					getPackageManager()).toString();
			// 获取到应用所在包的名字,即在AndriodMainfest中的package的值。
			String packageName = packageInfo.packageName;
			Log.i("zyn", "应用的名字:" + appName);
			Log.i("zyn", "应用的包名字:" + packageName);
			i++;
		}
		Log.i("zyn", "应用的总个数:" + i);

	}
}