[英]Google Activity Recognition API
I am going to write an application using google play services activity recognition api. 我将使用Google Play服务活动识别API编写应用程序。 the training in android developer site was straight forward but in the past couple of hours i wrote a simple application but i can't get any result from it.
android开发人员网站中的培训非常简单,但是在过去的几个小时中,我编写了一个简单的应用程序,但无法从中获得任何结果。 UPDATE : Actually i am going to show the current activity of user in 5 second intervals as a toast message (as you can see in OnIntentHandler method in ActivityRecognitionService Intent Servie) .
更新:实际上,我将以5秒的间隔显示用户的当前活动,作为敬酒消息(如您在ActivityRecognitionService Intent Servie中的OnIntentHandler方法中所看到的)。 i think something is wrong with the calling the Intent because as you can see in my code the toast that says the ActivityRecognitionClient is connected on OnConnected method.
我认为调用Intent有点问题,因为正如您在我的代码中看到的那样,吐司说ActivityRecognitionClient是在OnConnected方法上连接的。
did i miss something ? 我错过了什么 ?
Thanks in advance. 提前致谢。
Manifest File : 清单文件:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.nikapps.activityrecognition"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission
android:name="com.google.android.gms.permission.ACTIVITY_RECOGNITION"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<service
android:name="com.nikapps.activityrecognition.ActivityRecognitionService"
android:label="@string/app_name"
android:exported="false">
</service>
<activity
android:name="com.nikapps.activityrecognition.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
MainActivity.java MainActivity.java
package com.nikapps.activityrecognition;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient.ConnectionCallbacks;
import com.google.android.gms.common.GooglePlayServicesClient.OnConnectionFailedListener;
import com.google.android.gms.location.ActivityRecognitionClient;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.widget.Toast;
public class MainActivity extends FragmentActivity implements ConnectionCallbacks, OnConnectionFailedListener{
public static int intervals = 5000;
private PendingIntent pendingIntent;
private ActivityRecognitionClient activityRecognition;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
activityRecognition = new ActivityRecognitionClient(this, this, this);
activityRecognition.connect();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onConnectionFailed(ConnectionResult result) {
// TODO Auto-generated method stub
}
@Override
public void onConnected(Bundle connectionHint) {
// TODO Auto-generated method stub
Toast.makeText(this, "connected", Toast.LENGTH_SHORT).show();
Intent intent = new Intent(this, ActivityRecognitionService.class);
pendingIntent = PendingIntent.getService(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
activityRecognition.requestActivityUpdates(0, pendingIntent);
}
@Override
public void onDisconnected() {
// TODO Auto-generated method stub
Toast.makeText(this, "disconnected", Toast.LENGTH_SHORT).show();
}
}
ActivityRecognitionService.java ActivityRecognitionService.java
package com.nikapps.activityrecognition;
import com.google.android.gms.location.ActivityRecognitionResult;
import com.google.android.gms.location.DetectedActivity;
import android.app.IntentService;
import android.content.Intent;
import android.widget.Toast;
public class ActivityRecognitionService extends IntentService{
public ActivityRecognitionService() {
super("ActivityRecognitionService");
Toast.makeText(this, "here", Toast.LENGTH_SHORT).show();
// TODO Auto-generated constructor stub
}
@Override
protected void onHandleIntent(Intent intent) {
// TODO Auto-generated method stub
Toast.makeText(this, "here2", Toast.LENGTH_SHORT).show();
ActivityRecognitionResult result = ActivityRecognitionResult.extractResult(intent);
DetectedActivity activity = result.getMostProbableActivity();
int type = activity.getType();
Toast.makeText(this, getNameFromType(type), Toast.LENGTH_SHORT).show();
}
private String getNameFromType(int activityType) {
switch(activityType) {
case DetectedActivity.IN_VEHICLE:
return "in_vehicle";
case DetectedActivity.ON_BICYCLE:
return "on_bicycle";
case DetectedActivity.ON_FOOT:
return "on_foot";
case DetectedActivity.STILL:
return "still";
case DetectedActivity.UNKNOWN:
return "unknown";
case DetectedActivity.TILTING:
return "tilting";
}
return "unknown";
}
}
You can broadcast an intent to send messages from the service to the main class 您可以广播将服务中的消息发送到主类的意图
For example, use the following in your ActivityRecognitionService.java: 例如,在ActivityRecognitionService.java中使用以下命令:
Intent mIntent = new Intent("myCustomIntentMessage")
.putExtra("ActivityType", getNameFromType(type));
getLocalBroadcast().sendBroadcast(mIntent);
Then you just need to register the broadcast receiver for "myCustomIntentMessage" on your MainActivity.java and put the Toast message code in the broadcast receiver OnReceive event. 然后,您只需要在MainActivity.java中为“ myCustomIntentMessage”注册广播接收器,并将Toast消息代码放入广播接收器的OnReceive事件中。
You can only call the Toast from a thread that has a handler/Looper set up. 您只能从已设置处理程序/ Looper的线程中调用Toast。 To achieve what you're envisioning you have two options
为了实现您的预期,您有两种选择
Error calling toast from Service Android 从服务Android调用Toast时出错
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