判断当前界面是否为桌面-优快云博客

本文链接：https://blog.youkuaiyun.com/amsunny/article/details/50976603

判断当前界面是否是桌面整体思路

通过ActivityManager获知topActivity的包名
通过PackageManager和桌面Intent(Category_HOME,ACTION_MAIN)查询到所有桌面应用的包名
看步骤2的列表中是否含有步骤1的包名，是则为桌面，否则不是

/**
*判断当前界面是否为桌面
*/
private boolean isHome() {
        ActivityManager mActivityManager = (ActivityManager)  getSystemService(Context.ACTIVITY_SERVICE);
        List<RunningTaskInfo> rti = mActivityManager.getRunningTasks(1);
        return getHomes().contains(rti.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> names = 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) {
            names.add(ri.activityInfo.packageName);
        }
        return names;
    }