Android工具类：快速删除指定应用程序

懒骨头（http://blog.csdn.com/iamlazybone）

开发时使用的工具类，不通用，发文权当笔记。

记得很多群里问怎么得到已安装的应用程序列表，下面的例子用到了。

/**
 * 一个不通用的工具类：一键删除某个指定应用程序。开发时的临时需求，不通用权当笔记。
 * 
 * @author lazybone
 */
public class HiYoGameBox 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);
	}
	/**
	 * 删除应用程序
	 */
	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");
	}
	/**
	 * 操作完成后关闭此程序
	 */
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		this.finish();
	}
	/**
	 * 加载应用列表
	 */
	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
	 * 
	 * @param name
	 * @param packageName
	 */
	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，九宫格显示应用程序列表
	 * 
	 * @author lazybone
	 */
	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;
		}
	}