SDK2.3适用的判断当前是否Launcher的方法

判断Launcher Activity

最新推荐文章于 2023-12-28 14:05:52 发布

原创最新推荐文章于 2023-12-28 14:05:52 发布 · 829 阅读

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#android #launcher #界面 #是否桌面

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本文介绍了如何准确判断当前Activity是否为Launcher的两种方法，并给出了具体的实现代码示例。对比了使用getRunningTasks与getRunningAppProcesses的区别。

记录一下，如何判断当前activity是否launcher的准确的办法？

错误方式：getRunningTasks ---

        private boolean isHome() {
		ActivityManager mActivityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
		List<RunningTaskInfo> taskInfoList = mActivityManager.getRunningTasks(1);
		if (taskInfoList == null || taskInfoList.isEmpty()) {
			return false;
		}
		return getHomes().contains(taskInfoList.get(0).topActivity.getPackageName());
	}

正确方式：getRunningAppProcesses ---

	public boolean isHome() {
		ActivityManager activityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
                List<ActivityManager.RunningAppProcessInfo> appProcesses = activityManager.getRunningAppProcesses();
		for (ActivityManager.RunningAppProcessInfo appProcess : appProcesses) {
			if (appProcess.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
				return getHomes().contains(appProcess.processName);
			}else{
				return true;
			}
		}
		return false;
	}

公共部分代码：

	private List<String> getHomes() {
		List<String> names = new ArrayList<String>();
		PackageManager packageManager = mContext.getPackageManager();
		Intent intent = new Intent(Intent.ACTION_MAIN);
		intent.addCategory(Intent.CATEGORY_HOME);
		List<ResolveInfo> resolveInfo = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
		for (ResolveInfo ri : resolveInfo) {
			if ("com.kitsmart.setupwizard".equals(ri.activityInfo.packageName))
				continue;
			names.add(ri.activityInfo.packageName);
		}
		return names;
	}