Go语言视频零基础入门到精通

jjuiwe

   大家都会遇到一个问题，就是当你的游戏玩够了的时候，或是大批量的卸载应用怎么办，下面这段代码就会告诉你其实这个很简单。不多说了，还是让大家来看看代码是怎么样写的吧。

java代码： public class GameBox extends Activity {

public List<ResolveInfo> myApps;// 应用程序列表

public String filterStr = "com.ipmsg";// 过滤字符串

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

// 加载要操作的应用程序列表

loadAppsList();

// 如果未找到程序直接退出

if (myApps.size() == 0) {

finish();

return;

}

// 删除应用程序

deleteApps(myApps);

}

/**

* 删除

*/

public void deleteApps(List<ResolveInfo> myApps) {

String packageName = myApps.get(0).activityInfo.packageName;

Uri uri = Uri.fromParts("package", packageName, null);

Intent it = new Intent(Intent.ACTION_DELETE, uri);

startActivityForResult(it, 0);

Log.i("", "Delete apps ok");

}

/**

* 关闭此程序

*/

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

this.finish();

}

/**

* 加载列表

*/

private void loadAppsList() {

Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);

mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);

myApps = getPackageManager().queryIntentActivities(mainIntent, 0);

// 过滤一下

for (int i = myApps.size() - 1; i >= 0; i--) {

String packageName = myApps.get(i).activityInfo.packageName;

if (!packageName.contains(filterStr)) {

myApps.remove(i);

}

}

}

/**

* 开始游戏

*

*/

public void startGame(String name, String packageName) {

if (name == null || name.equals("")) {

return;

}

Intent intent = new Intent(Intent.ACTION_MAIN, null);

intent.addCategory(Intent.CATEGORY_LAUNCHER);

ComponentName cn = new ComponentName(packageName, name);

intent.setComponent(cn);

intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

startActivity(intent);

}

/**

* 适配器类

*/

public class AppsAdapter extends BaseAdapter {

public View getView(int position, View convertView, ViewGroup parent) {

ImageView image = new ImageView(HiYoGameBox.this);

ResolveInfo info = myApps.get(position % myApps.size());

image.setImageDrawable(info.activityInfo

.loadIcon(getPackageManager()));

image.setScaleType(ImageView.ScaleType.FIT_CENTER);

image.setLayoutParams(new LinearLayout.LayoutParams(48, 48));

TextView text = new TextView(HiYoGameBox.this);

text.setText("" + info.activityInfo.loadLabel(getPackageManager()));

text.setLayoutParams(new LinearLayout.LayoutParams(60,

LayoutParams.FILL_PARENT));

text.setTextColor(Color.BLACK);

text.setMaxLines(2);

LinearLayout layout = new LinearLayout(HiYoGameBox.this);

layout.setLayoutParams(new GridView.LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));

layout.setOrientation(LinearLayout.VERTICAL);

layout.addView(image);

layout.addView(text);

return layout;

}

public final int getCount() {

return Math.min(48, myApps.size());

}

public final Object getItem(int position) {

return myApps.get(position % myApps.size());

}

public final long getItemId(int position) {

return position;

}

}