我需要知道何时Android设备闲置了一段时间,当我的应用程序当前处于后台时(并且如果它闲置,请将我的应用程序前面)。只有两个办法我能想到的要做到这一点是:Android服务:当设备空闲X分钟时检测
不知怎的,检测用户交互的应用程序之外,如果还没有几分钟的X个任意输入,带给我的应用程序前。
或:
当设备进入睡眠模式,带给我的应用程序的前面。
我不知道如何这些,但2似乎是对我来说最可行的选择。这是什么代码?
我需要知道何时Android设备闲置了一段时间,当我的应用程序当前处于后台时(并且如果它闲置,请将我的应用程序前面)。只有两个办法我能想到的要做到这一点是:Android服务:当设备空闲X分钟时检测
不知怎的,检测用户交互的应用程序之外,如果还没有几分钟的X个任意输入,带给我的应用程序前。
或:
当设备进入睡眠模式,带给我的应用程序的前面。
我不知道如何这些,但2似乎是对我来说最可行的选择。这是什么代码?
我是能够通过使用被放置在所有视图顶部“透明的”视图,它检查用户完成1.触摸
步骤用于实现所需要的效果:
1)创建一个服务这在其onCreate方法创建透明视图,其附加到观点堆栈
2)onStartCommand调用initTimer()方法
3)上的服务
4实施View.OnTouchListener)覆盖onTouch方法
5) onTouch甚至t)收到 - 呼叫initTimer()
6)onDestroy的服务 - 从视图堆栈中删除透明视图
7)当你的主要活动的onPause被调用时启动服务
8)当应用程序停止服务打开
下面是代码:
private Handler mHandler;
private Runnable mRunnable;
private final int mTimerDelay = 60000;//inactivity delay in milliseconds
private LinearLayout mTouchLayout;//the transparent view
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
mTouchLayout = new LinearLayout(this);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
mTouchLayout.setLayoutParams(lp);
// set on touch listener
mTouchLayout.setOnTouchListener(this);
// fetch window manager object
WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
// set layout parameter of window manager
WindowManager.LayoutParams mParams = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE |
WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH |
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, PixelFormat.TRANSLUCENT
);
mParams.gravity = Gravity.LEFT | Gravity.TOP;
windowManager.addView(mTouchLayout, mParams);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
initTimer();
return START_NOT_STICKY;
}
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
Log.d("IdleDetectorService", "Touch detected. Resetting timer");
initTimer();
return false;
}
@Override
public void onDestroy() {
super.onDestroy();
mHandler.removeCallbacks(mRunnable);
WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
if (windowManager != null && mTouchLayout != null) {
windowManager.removeView(mTouchLayout);
}
}
/**
* (Re)sets the timer to send the inactivity broadcast
*/
private void initTimer() {
// Start timer and timer task
if (mRunnable == null) {
mRunnable = new Runnable() {
@Override
public void run() {
Log.d("IdleDetectorService", "Inactivity detected. Sending broadcast to start the app");
try {
boolean isInForeground = new ForegroundCheckTask().execute(getApplicationContext()).get();
if (!isInForeground) {
Intent launchIntent = getApplication()
.getPackageManager()
.getLaunchIntentForPackage("<your-package-name>");
if (launchIntent != null) {
LogUtil.d("IdleDetectorService", "App started");
getApplication().startActivity(launchIntent);
}
}
stopSelf();
} catch (Exception e) {
}
}
};
}
if (mHandler == null) {
mHandler = new Handler();
}
mHandler.removeCallbacks(mRunnable);
mHandler.postDelayed(mRunnable, mTimerDelay);
}
private class ForegroundCheckTask extends AsyncTask<Context, Void, Boolean> {
@Override
protected Boolean doInBackground(Context... params) {
final Context context = params[0];
return isAppOnForeground(context);
}
private boolean isAppOnForeground(Context context) {
ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningAppProcessInfo> appProcesses = null;
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) {
appProcesses = activityManager.getRunningAppProcesses();
} else {
//for devices with Android 5+ use alternative methods
appProcesses = AndroidProcesses.getRunningAppProcessInfo(getApplication());
}
if (appProcesses == null) {
return false;
}
final String packageName = context.getPackageName();
for (ActivityManager.RunningAppProcessInfo appProcess : appProcesses) {
if (appProcess.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND &&
appProcess.processName.equals(packageName)) {
return true;
}
}
return false;
}
}
请注意,你应该在你的AndroidManifest.xml文件中添加额外的权限: 机器人:名字= “android.permission.SYSTEM_ALERT_WINDOW”
在我看到过类似的讨论之前,这里:http://stackoverflow.com/questions/4075180/application-idle-time – Scalarr 2014-10-09 21:26:17
@Scalar这是检测空闲时间_inside_应用程序。 – uyuyuy99 2014-10-09 21:48:02
当设备进入睡眠模式时,*无*(至少以普通软件的方式)正在运行。 – 2014-10-09 21:54:40