关于Android 4.0 以上Service被kill后的生命周期以及onTaskRemoved和OnTrimMemory调用

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一直在搞基础的安卓Service ，估计很多人都一样，最头疼的是Service被kill后的生命周期

先贴出服务代码：

public class MyService extends Service {
@Override
public void onCreate() {
super.onCreate();
Log.v("tag", "服务：onCreate");
}
@Override
public void onDestroy() {
super.onCreate();
Log.v("tag", "服务：onDestroy");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.v("tag", "服务：onStartCommand");
return super.onStartCommand(intent, flags, startId);
}
@Override
public void onRebind(Intent it) {
super.onRebind(it);
Log.v("tag", "服务：onRebind");
}
@Override
public boolean onUnbind(Intent it) {
Log.v("tag", "服务：onUnbind");
return super.onUnbind(it);
}
public class IBinderImpl extends Binder {
public MyService getInstance() {
return MyService.this;
}
};
@Override
public IBinder onBind(Intent intent) {
Log.v("tag", "服务：onBind");
return new IBinderImpl();
}
@SuppressWarnings("deprecation")
@Override
public void onStart(Intent intent, int startId) {
// TODO Auto-generated method stub
super.onStart(intent, startId);
Log.v("tag", "服务：onStart");
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
// TODO Auto-generated method stub
super.onConfigurationChanged(newConfig);
Log.v("tag", "服务：onStart");
}
@Override
public void onLowMemory() {
// TODO Auto-generated method stub
super.onLowMemory();
Log.v("tag", "服务：onLowMemory");
}
@SuppressLint("NewApi")
@Override
public void onTrimMemory(int level) {
// TODO Auto-generated method stub
super.onTrimMemory(level);
Log.v("tag", "服务：onTrimMemory " + level);
}
@SuppressLint("NewApi")
@Override
public void onTaskRemoved(Intent rootIntent) {
// TODO Auto-generated method stub
super.onTaskRemoved(rootIntent);
Log.v("tag", "服务：onTaskRemoved");
}
@Override
protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) {
// TODO Auto-generated method stub
super.dump(fd, writer, args);
Log.v("tag", "服务：dump");
}
}

MainActivity代码：

public class MainActivity extends ActionBarActivity implements OnClickListener {
private Button startServiceBtn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startServiceBtn = (Button) findViewById(R.id.startService);
startServiceBtn.setOnClickListener(this);
}
@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 boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(v.getId() == R.id.startService){
Intent intent = new Intent();
intent.setClass(this, MyService.class);
this.startService(intent);
}
}
}