我想将一个字符串从一个应用程序发送到一个服务，我使用了绑定服务并且我已经实现了这个代码：
package pref.com.app1;
public class MainActivity extends AppCompatActivity {
Messenger mService = null;
/** Flag indicating whether we have called bind on the service. */
boolean mIsBound;
class IncomingHandler extends Handler {
@Override
public void handleMessage(Message msg) {
Toast.makeText(getApplicationContext(), "IncomingClient--:"+msg.arg1, Toast.LENGTH_LONG).show();
}
}
/**
* Target we publish for clients to send messages to IncomingHandler.
*/
final Messenger mMessenger = new Messenger(new IncomingHandler());
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className,
IBinder service) {
Toast.makeText(getApplicationContext(), "sn:"+service.toString(),
Toast.LENGTH_SHORT).show();
mService = new Messenger(service);
try {
Message msg = Message.obtain(null,
1);
msg.replyTo = mMessenger;
mService.send(msg);
// Give it some value as an example.
msg = Message.obtain(null,
1, this.hashCode(), 0);
mService.send(msg);
} catch (RemoteException e) {
Toast.makeText(getApplicationContext(), "catch1--:"+e.toString(),
Toast.LENGTH_SHORT).show();
}
}
public void onServiceDisconnected(ComponentName className) {
mService = null;
Toast.makeText(getApplicationContext(),"Handler-Disconnect---",
Toast.LENGTH_SHORT).show();
}
};
public void doBindService() {
Intent intentForMcuService = new Intent();
intentForMcuService.setComponent(new ComponentName("com.example.newpro", "com.example.newpro.MainActivity"));
if (getApplicationContext().bindService(intentForMcuService, mConnection,Context.BIND_AUTO_CREATE
)){
Toast.makeText(getApplicationContext(),"binded",
Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(getApplicationContext(),"not binded",
Toast.LENGTH_SHORT).show();
}
mIsBound = true;
Toast.makeText(getApplicationContext(), "binding-client",
Toast.LENGTH_SHORT).show();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button sosBtn = (Button) findViewById(R.id.button);
sosBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
doBindService();
}
});
}
我的服务是：
package com.example.newpro;
public class MainActivity extends Service {
final android.os.Messenger mMessenger = new android.os.Messenger(new IncomingHandler());
@SuppressLint("HandlerLeak")
class IncomingHandler extends Handler {
@Override
public void handleMessage(android.os.Message msg) {
Toast.makeText(getApplicationContext(), "IncomingServer-:"+msg.arg1, Toast.LENGTH_LONG).show();
}
}
@Override
public IBinder onBind(Intent intent) {
return mMessenger.getBinder();
}
@Override
public void onStart(Intent intent, int startId) {
//my code
}
当我运行两个应用程序时，app1 显示“未绑定”：在这一行：
Toast.makeText(getApplicationContext(),"not binded",
Toast.LENGTH_SHORT).show();
我应该怎么办？请帮我。提前致谢