Android Tips: 如何判断所安装的应用是否为系统应用_adb怎么判断一个app是否为系统app

在Andori的开发中，尤其的是launcher 的开发中需要判断一个已经安装的应用是否为系统应用。这里介绍一个好用的方法，代码如下：

// Check if the apk is in system folder
	public boolean isSystemApk(int position) {
		if (position >= mList.size())
			return false;
		ResolveInfo resolveInfo = mList.get(position);
		Log.d(TAG, resolveInfo.activityInfo.packageName + " get the path"
				+ resolveInfo.activityInfo.applicationInfo.sourceDir.toString());
		ApplicationInfo ai;
		try {
			ai = pm.getApplicationInfo(
					resolveInfo.activityInfo.applicationInfo.packageName, 0);
			if ((ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
				return true;
			}
		} catch (NameNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		return false;
	}

具体的讨论可以参考： http://stackoverflow.com/questions/8784505/how-do-i-check-if-an-app-is-a-non-system-app-in-android