Android判断当前界面是否是桌面

添加权限：

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" /> <!-- 使用SYSTEM_ALERT_WINDOW时必须要加 --><uses-permission android:name="android.permission.GET_TASKS"/>

/**     * 判断当前界面是否是桌面     */    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;    }