跨应用绑定Service并通信：
1、（StartServiceFromAnotherApp）AIDL文件中新增接口：
void setData(String data);
AppService文件中实现接口：
public IBinder onBind(Intent intent) {
return new IAppServiceRomoteBinder.Stub() {
@Override
public void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, String aString) throws RemoteException {
}
@Override
public void setData(String data) throws RemoteException {
}
};
}
2、（StartServiceFromAnotherApp）修改AppService内部数据：
private String data = "默认信息";
public void setData(String data) throws RemoteException {
AppService.this.data = data;
}
3、（（StartServiceFromAnotherApp）AppService）
onCreat写线程，onDestroy中销毁，每隔一秒输出data，方便测试内部数据的变化：
private boolean running = false;
public void onCreate() {
super.onCreate();
System.out.println("Service started");
new Thread(){
@Override
public void run() {
super.run();
running = true;
while(running){
System.out.println(data);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}.start();
}
public void onDestroy() {
super.onDestroy();
System.out.println("Service destroy");
running = false;
}
4、（AnotherApp）主布局：
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="这是另一个应用中的数据"
android:id="@+id/etInput" />
<Button
android:text="同步数据到绑定的服务中"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/btnSync" />
5、（AnotherApp）进入MainActivity，按钮及输入文本的监听：
private EditText etInput;
etInput = (EditText) findViewById(R.id.etInput);
findViewById(R.id.btnSync).setOnClickListener(this);
6、如何通过Binder方便地执行远程函数？把StartServiceFromAnotherApp中AIDL文件拷贝到AnotherApp中，保持包名一致。
7、（AnotherApp）进行数据最后处理：
private IAppServiceRomoteBinder binder = null;
case R.id.btnUnbindService:
unbindService(this);
binder = null;
break;
case R.id.btnSync:
if(binder != null){
try {
binder.setData(etInput.getText().toString());
} catch (RemoteException e) {
e.printStackTrace();
}
}
public void onServiceConnected(ComponentName name, IBinder service) {
//binder = IAppServiceRomoteBinder(service); 两个类定义所在地址不一样，不能强制类型转换
binder = IAppServiceRomoteBinder.Stub.asInterface(service);
}