Java Process.THREAD_PRIORITY_FOREGROUND屬性代碼示例

public static Thread newThread(String name, final int priority, Runnable r) {
	return new Thread(r, "PTF-" + name) {
		@Override
		public void run() {
			int priorityNew = priority;
			if (priority > Process.THREAD_PRIORITY_LOWEST) {
				priorityNew = Process.THREAD_PRIORITY_LOWEST;
			} else if (priority < Process.THREAD_PRIORITY_FOREGROUND) {
				priorityNew = Process.THREAD_PRIORITY_FOREGROUND;
			}
			Process.setThreadPriority(priorityNew);
			super.run();
		}
	};
}
 

@Override
public void onCreate() {
    Log.i(TAG, "Create version=" + Util.getSelfVersionName(this) + "/" + Util.getSelfVersionCode(this));

    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);

    // Native init
    jni_init();
    boolean pcap = prefs.getBoolean("pcap", false);
    setPcap(pcap, this);

    prefs.registerOnSharedPreferenceChangeListener(this);

    Util.setTheme(this);
    super.onCreate();

    HandlerThread commandThread = new HandlerThread(getString(R.string.app_name) + " command", Process.THREAD_PRIORITY_FOREGROUND);
    HandlerThread logThread = new HandlerThread(getString(R.string.app_name) + " log", Process.THREAD_PRIORITY_BACKGROUND);
    HandlerThread statsThread = new HandlerThread(getString(R.string.app_name) + " stats", Process.THREAD_PRIORITY_BACKGROUND);
    commandThread.start();
    logThread.start();
    statsThread.start();

    commandLooper = commandThread.getLooper();
    logLooper = logThread.getLooper();
    statsLooper = statsThread.getLooper();

    commandHandler = new CommandHandler(commandLooper);
    logHandler = new LogHandler(logLooper);
    statsHandler = new StatsHandler(statsLooper);

    // Listen for power save mode
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && !Util.isPlayStoreInstall(this)) {
        PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
        powersaving = pm.isPowerSaveMode();
        IntentFilter ifPower = new IntentFilter();
        ifPower.addAction(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED);
        registerReceiver(powerSaveReceiver, ifPower);
        registeredPowerSave = true;
    }

    // Listen for user switches
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
        IntentFilter ifUser = new IntentFilter();
        ifUser.addAction(Intent.ACTION_USER_BACKGROUND);
        ifUser.addAction(Intent.ACTION_USER_FOREGROUND);
        registerReceiver(userReceiver, ifUser);
        registeredUser = true;
    }

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        // Listen for idle mode state changes
        IntentFilter ifIdle = new IntentFilter();
        ifIdle.addAction(PowerManager.ACTION_DEVICE_IDLE_MODE_CHANGED);
        registerReceiver(idleStateReceiver, ifIdle);
        registeredIdleState = true;
    }

    // Listen for connectivity updates
    IntentFilter ifConnectivity = new IntentFilter();
    ifConnectivity.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    registerReceiver(connectivityChangedReceiver, ifConnectivity);
    registeredConnectivityChanged = true;

    // Listen for added applications
    IntentFilter ifPackage = new IntentFilter();
    ifPackage.addAction(Intent.ACTION_PACKAGE_ADDED);
    ifPackage.addAction(Intent.ACTION_PACKAGE_REMOVED);
    ifPackage.addDataScheme("package");
    registerReceiver(packageChangedReceiver, ifPackage);
    registeredPackageChanged = true;

    // Setup house holding
    Intent alarmIntent = new Intent(this, ServiceSinkhole.class);
    alarmIntent.setAction(ACTION_HOUSE_HOLDING);
    PendingIntent pi = PendingIntent.getService(this, 0, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    am.setInexactRepeating(AlarmManager.RTC, SystemClock.elapsedRealtime() + 60 * 1000, AlarmManager.INTERVAL_HALF_DAY, pi);
}
 

/**
 *
 * @param threshold  設置輸出日誌的閾值,
 *                   比如設置為10,日誌會追蹤所有丟幀超過10幀的場景
 * @param noSystemCode  堆棧是否需要含有Android係統代碼
 * @return
 */
public Monitor init(int threshold,boolean noSystemCode) {
    if (new Handler().getLooper() != Looper.getMainLooper()) {
        throw new RuntimeException(" must init in Main thread !");
    }
    if (inited) {
        return this;
    }

    if (threshold <= 0) {
        threshold = 1;
    }
    this.threshold = threshold;
    this.delay = delay * threshold;
    HandlerThread mHandlerThread = new CheckerHandlerThread("monitor",
            Process.THREAD_PRIORITY_FOREGROUND);
    mHandlerThread.start();
    mCheckerHandler = new Handler(mHandlerThread.getLooper(), this);
    mMainHandler = new Handler(Looper.getMainLooper());
    stackQueue = new QueueCache<>(threshold + 1);
    mInfoConsumer = new InfoConsumer(noSystemCode);
    mMainChoreographer = Choreographer.getInstance();
    mMainCallback = new Choreographer.FrameCallback() {
        @Override
        public void doFrame(final long frameTimeNanos) {
            final long delta = (frameTimeNanos - lastDoFrameTime) / 1000000;
            if (lastDoFrameTime != 0 && delta > delay) {
                //LogUtils.d("monitor", "main doFrame " + delta);
                final long lastTime = lastDoFrameTime;
                // 單線程操作 queue
                mCheckerHandler.post(new Runnable() {
                    @Override
                    public void run() {
                        statisticsStack(frameTimeNanos / 1000000, delta, StackInfo.TYPE_CHECK);
                        processInfo(lastTime / 1000000, frameTimeNanos / 1000000);
                    }
                });

            }
            lastDoFrameTime = frameTimeNanos;
            if (mLoopFlag) {
                mMainChoreographer.postFrameCallback(mMainCallback);
            }
        }
    };
    inited = true;
    return this;
}