Android-Start service and pass data

This article primarily records activity delivery data to the service.

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2, through the above, you can see the activity page value changes, the corresponding background service output value also changed.
3, the core code is as follows, look at 38 lines in the code, using intent as a carrier, loading the data on the activity page.

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<code class="hljs" java="">package com.example.connectservice;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.EditText;public class MainActivity extends Activity implements OnClickListener {    private EditText edit;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        findViewById(R.id.startService).setOnClickListener(this);        findViewById(R.id.stopService).setOnClickListener(this);        edit = (EditText) findViewById(R.id.editText1);    }    @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 onClick(View v) {        switch (v.getId()) {        case R.id.startService:            Intent i = new Intent(this, MyService.class);            i.putExtra(data, edit.getText().toString());            startService(i);            break;        case R.id.stopService:            stopService(new Intent(this, MyService.class));            break;        }    }}</code>

4, the service code is as follows, see the Code of 21 lines, we in the Onstartcommand method through the intent parameter to get the value of activity passed over.

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<code class="hljs" java="">package com.example.connectservice;import android.app.Service;import android.content.Intent;import android.os.IBinder;import android.widget.EditText;public class MyService extends Service {    String data;    boolean running = false;    @Override    public IBinder onBind(Intent intent) {        // TODO Auto-generated method stub        return null;    }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        data = intent.getStringExtra(data);        return super.onStartCommand(intent, flags, startId);    }    @Override    public void onCreate() {        super.onCreate();        running = true;        new Thread() {            public void run() {                while (running) {                    System.out.println(Service中获取到的数据： + data);                    try {                        Thread.sleep(1000);                    } catch (InterruptedException e) {                        // TODO Auto-generated catch block                        e.printStackTrace();                    }                }            };        }.start();    }    @Override    public void onDestroy() {        super.onDestroy();        running = false;    }}</code>

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<code class="hljs" xml=""><manifest android:versioncode="1" android:versionname="1.0" package="com.example.connectservice" xmlns:android="http://schemas.android.com/apk/res/android"><uses-sdk android:minsdkversion="8" android:targetsdkversion="21">                        <intent-filter>                                <category android:name="android.intent.category.LAUNCHER">            </category></action></intent-filter>        </activity>        <service android:enabled="true" android:exported="true" android:name=".MyService">        </service>    </application></uses-sdk></manifest></code>

Android-Start service and pass data