unregisterListener是不工作的按钮单击事件 [英] unregisterListener is not working on button click event

问题描述

下面是我的code。我是新android开发。我叫 registerListener 按钮单击事件。它从加速度计获取数据，但是当我打电话 unregisterListener 从另一个按一下按钮，它不工作。

 公共无效startButton（查看视图）{
    findViewById（R.id.stop）.setEnabled（真）;
    findViewById（R.id.start）.setEnabled（假）;
    意向意图= getIntent（）;
    selsensors = intent.getStringExtra（SensorsList.SELECTED_SENSORS）;
    mSensorManager =（的SensorManager）getSystemService（SENSOR_SERVICE）;
    senList = mSensorManager.getSensorList（Sensor.TYPE_ALL）;
    mAccelerometer = mSensorManager.getDefaultSensor（Sensor.TYPE_ACCELEROMETER）;
    mSensorManager.registerListener（这一点，mAccelerometer，mSensorManager.SENSOR_DELAY_NORMAL）;
}
@覆盖
公共无效onSensorChanged（SensorEvent事件）{
    如果（event.sensor.getType（）== Sensor.TYPE_ACCELEROMETER）{
        AX = event.values​​ [0];
        AY = event.values​​ [1];
        AZ = event.values​​ [2];
        Toast.makeText（这一点，X+ AX +\\ NY：+ AY +\\ NZ：+ AZ，Toast.LENGTH_SHORT）.show（）;
    }
}
公共无效STOPBUTTON（查看视图）{
    mSensorManager.unregisterListener（本）;
    this.finish（）;
}
 

解决方案

你试过它有传感器参数注销功能？此外，你确定你是不是叫去precated注销功能呢？ http://developer.android.com/reference/android/hardware/SensorManager.html

  mSensorManager.registerListener（这一点，mAccelerometer，mSensorManager.SENSOR_DELAY_NORMAL）;
mSensorManager.unregisterListener（这一点，mAccelerometer）;
 

Here is my code. I am new to android development. I called registerListener on button click event. It starts getting data from accelerometer but when I call unregisterListener from another button click, it is not working.

public void startButton(View view){
    findViewById(R.id.stop).setEnabled(true);
    findViewById(R.id.start).setEnabled(false);
    Intent intent = getIntent();
    selsensors = intent.getStringExtra(SensorsList.SELECTED_SENSORS);
    mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
    senList = mSensorManager.getSensorList(Sensor.TYPE_ALL);
    mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
    mSensorManager.registerListener(this, mAccelerometer,    mSensorManager.SENSOR_DELAY_NORMAL);
}
@Override
public void onSensorChanged(SensorEvent event){
    if(event.sensor.getType()==Sensor.TYPE_ACCELEROMETER){
        ax = event.values[0];
        ay = event.values[1];
        az = event.values[2];
        Toast.makeText(this, "X: "+ax+"\nY: "+ay+"\nZ: "+az, Toast.LENGTH_SHORT).show();
    }
}
public void stopButton(View view){
    mSensorManager.unregisterListener(this);
    this.finish();
}

解决方案

Have you tried the unregister function which has the sensor as parameter? Furthermore, are you sure you are not calling the deprecated unregister functions? http://developer.android.com/reference/android/hardware/SensorManager.html

mSensorManager.registerListener(this, mAccelerometer,    mSensorManager.SENSOR_DELAY_NORMAL);
mSensorManager.unregisterListener(this, mAccelerometer);

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