将数据从服务发送到活动

Question

我在通过Notification从服务向活动发送数据时遇到问题，我单击了一个活动被调用的通知，但是当我尝试通过捆绑包添加一些参数时，我无法获得所谓的intent中的参数，我经历了链接
如何将通知单击中的参数发送到活动？

但是仍然没有运气。

其他人也发生过同样的问题吗？

提前致谢。

Answer 1

您还必须修改清单文件。

这是有效的示例：

这些变量和方法是Service类的成员：

public static final String MOVEMENT_UPDATE = "com.client.gaitlink.AccelerationService.action.MOVEMENT_UPDATE";
    public static final String ACCELERATION_X = "com.client.gaitlink.AccelerationService.ACCELERATION_X";
    public static final String ACCELERATION_Y = "com.client.gaitlink.AccelerationService.ACCELERATION_Y";
    public static final String ACCELERATION_Z = "com.client.gaitlink.AccelerationService.ACCELERATION_Z";

private void announceAccelerationChanges()//this method sends broadcast messages
    {
        Intent intent = new Intent(MOVEMENT_UPDATE);
        intent.putExtra(ACCELERATION_X, accelerationX);
        intent.putExtra(ACCELERATION_Y, accelerationY);
        intent.putExtra(ACCELERATION_Z, accelerationZ);

        sendBroadcast(intent);
    }

这是Main活动中的方法：

您必须在onResume方法中注册接收者：

    @Override
    public void onResume()
    {

        IntentFilter movementFilter;
        movementFilter = new IntentFilter(AccelerationService.MOVEMENT_UPDATE);
        accelerationReceiver = new AccelerationServiceReceiver();
        registerReceiver(accelerationReceiver, movementFilter);


        startAccelerationService();

        super.onResume();
    }

    private void startAccelerationService()
    {
        startService(new Intent(this, AccelerationService.class));
    }

    public class AccelerationServiceReceiver extends BroadcastReceiver
    {
      @Override
        public void onReceive(Context context, Intent intent)//this method receives broadcast messages. Be sure to modify AndroidManifest.xml file in order to enable message receiving
        {
            accelerationX = intent.getDoubleExtra(AccelerationService.ACCELERATION_X, 0);
            accelerationY = intent.getDoubleExtra(AccelerationService.ACCELERATION_Y, 0);
            accelerationZ = intent.getDoubleExtra(AccelerationService.ACCELERATION_Z, 0);

            announceSession();

            updateGUI();
        }
    }

这是AndroidManifest.xml文件的一部分，必须设置该文件才能接收广播消息：

<activity android:name=".GaitLink"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />

                <action android:name="com.client.gaitlink.CommunicationService.action.ACTIVITY_STATUS_UPDATE" />

            </intent-filter>
        </activity>