Android四大元件啟動順序、生命週期詳解
阿新 • • 發佈:2018-12-31
package com.dada.test; import android.app.Activity; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.os.Bundle; import android.os.IBinder; import android.util.Log; import android.view.View; import android.widget.Button; import com.dada.test.BindService.MyBinder; public class TestActivity extends Activity { private boolean flag; private static final String TAG = "TestActivity"; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); super.onCreate(savedInstanceState); setContentView(R.layout.main); Button btnStart = (Button) findViewById(R.id.btnStart); Button btnStop = (Button) findViewById(R.id.btnStop); btnStart.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //啟動service 方式2 bindService(); } }); btnStop.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //停止service 方式2 unBindService(); } }); } //啟動service 方式2 // private void bindService(){ Intent intent = new Intent(TestActivity.this,BindService.class); Log.i(TAG, "bindService()"); bindService(intent, conn, Context.BIND_AUTO_CREATE); } private void unBindService(){ Log.i(TAG, "unBindService() start...."); if(flag == true){ Log.i(TAG, "unBindService() flag"); unbindService(conn); flag = false; } } private ServiceConnection conn = new ServiceConnection() { @Override public void onServiceDisconnected(ComponentName name) { // TODO Auto-generated method stub Log.i(TAG, "onServiceDisconnected()"); } @Override public void onServiceConnected(ComponentName name, IBinder service) { // TODO Auto-generated method stub Log.i(TAG, "onServiceConnected()"); MyBinder binder = (MyBinder)service; BindService bindService = binder.getService1(); bindService.MyMethod(); flag = true; } }; }