Question

我正在尝试创建一个使用计步器的Android应用。当用户重新启动/打开和关闭手机时，目前无法启动服务。我使用5.1，测试已在模拟器上完成。我不确定它是否正常工作，因为日志没有出现在控制台中。

非常感谢任何帮助！

App Manifest Class：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"package="app.apphub.devon.walkingquest">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".WalkingQuestSplashScreen">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <receiver android:name=".BootReceiver" android:exported="true" android:enabled="true"
        android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
        <intent-filtering>
            <action android:name="android.intent.action.BOOT_COMPLETED"/>
        </intent-filtering>

    </receiver>
    <service android:name=".StepCounterSensorRegister" android:enabled="true" android:exported="true"/>
</application>

</manifest>

启动接收器类： public class BootReceiver扩展了BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {
        Log.i("BROADCAST", "WALKING_QUEST_BOOT");
        Intent _intent = new Intent("app.apphub.devon.walkingquest.StepCounterSensorRegister");
        intent.setClass(context, StepCounterSensorRegister.class);
        context.startService(_intent);
        //context.startService(_intent);
        //Toast.makeText(context,"Airplane mode on",Toast.LENGTH_LONG).show();
    }
    else {
        Log.i("FAIL","BROADCAST FAILED");
    }
}

StepCounterSensorRegister Class：

public class StepCounterSensorRegister extends Service implements SensorEventListener {

SensorManager sensorManager;
Sensor sensor;
long globalSteps;
boolean flag = false;


@Override
public void onCreate(){

}

public int onStartCommand(Intent intent, int flags, int startId) {
    //Must run in background thread
    Log.i("START","STEP_COUNTER_STARTED");
    registerSensor(sensorManager.SENSOR_DELAY_UI);
    return START_STICKY;
}

public void onSensorChanged(SensorEvent event) {

    if(!flag){

    }
    if(event.sensor.getType() == Sensor.TYPE_STEP_COUNTER){
        Log.i("STEPS DETECTED",""+globalSteps);
        globalSteps++;
    }
}

public boolean registerSensor(int accuracy) {
    sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
    try {
        sensor = sensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER);
    }catch (Exception e){
        Log.i("ERROR", e.getMessage());
    }

    if(sensor == null) {
        Log.i("FAILED","Sensor returned null");
        return false;
    }
    else {
        Log.i("SUCCESS", "Successfully registered sensor");
        sensorManager.registerListener(this, sensor, accuracy);
        return true;
    }

}

Answer 1

我看到的两件事是您在清单中声明了错误：

 <receiver android:name=".BootReceiver" android:exported="true" android:enabled="true"
        android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
        <intent-filtering>
            <action android:name="android.intent.action.BOOT_COMPLETED"/>
        </intent-filtering>

    </receiver>

intent-filtering不存在，它是intent-filter
权限android:permission="android.permission.RECEIVE_BOOT_COMPLETED"在这里放错了地方，不要把它放在接收器标签内。你已经在上面定义了它。

确保在Logcat中设置了正确的过滤器，你使用了两个不同的标签“BROADCAST”和“FAIL”，也许这也是错误的。

Android广播接收器未在RECEIVE_BOOT_COMPLETED上运行服务

1 个答案: