android 判断当前界面是否是桌面

1    /**
* 获得当前活动APP的包名
*
* @return 返回当前活动界面是不是桌面
*/
private boolean isHomeWin()
{
ActivityManager mActivityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
List<RunningTaskInfo> lstRti = mActivityManager.getRunningTasks(1);
return getHomes().contains(lstRti.get(0).topActivity.getPackageName());
}

/**
* 获得属于桌面的应用的应用包名称
*
* @return 返回包含所有包名的字符串列表
*/
private List<String> getHomes() {
List<String> packages = new ArrayList<String>();
PackageManager packageManager = this.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) {
packages.add(ri.activityInfo.packageName);
}
return packages;
}