? ? ? ?本實(shí)例演示啟動(dòng)Service，并通過(guò)從Activity向Service傳遞數(shù)據(jù)，新建一個(gè)Service，并敲如下代碼：

package com.example.lhb.startservice;import android.app.Service; import android.content.Intent; import android.os.IBinder; import android.view.ViewDebug; import android.widget.Toast;public class MyService extends Service {private boolean Running=false;private String data="默認(rèn)信息！！！";public MyService() {}@Overridepublic IBinder onBind(Intent intent) {// TODO: Return the communication channel to the service.throw new UnsupportedOperationException("Not yet implemented");}@Overridepublic int onStartCommand(Intent intent, int flags, int startId) { data=intent.getStringExtra("data");//這里的intent是參數(shù)里的，不是自定義的return super.onStartCommand(intent, flags, startId);}@Overridepublic void onCreate() {super.onCreate();Running=true;new Thread(){@Overridepublic void run() {super.run();while (Running){System.out.println(data);try {sleep(3000);} catch (InterruptedException e) {e.printStackTrace();}}}}.start();}@Overridepublic void onDestroy() {super.onDestroy();Running=false;} } ? ? ? ?主程序代碼：
package com.example.lhb.startservice;import android.content.Intent; import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.EditText; import android.widget.Toast;public class MainActivity extends ActionBarActivity {private EditText inputText;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);findViewById(R.id.btnStartService).setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {inputText= (EditText) findViewById(R.id.inputText);if(inputText.getText().length()==0){Toast.makeText(MainActivity.this,"請(qǐng)輸入傳遞的值！",Toast.LENGTH_SHORT).show();return;}Intent intent;intent=new Intent(MainActivity.this,MyService.class);intent.putExtra("data",inputText.getText().toString());startService(intent);}});findViewById(R.id.btnStopService).setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Intent intent;intent=new Intent(MainActivity.this,MyService.class);stopService(intent);}});} }

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