android interface define language
跨进程通信前提：2个进程均已启动
1，跨进程启动Service
Intent intent = new Intent(); //OTHER_SERVICE 另一进程Service包名+ClassNameintent.setComponent(new ComponentName(OTHER_PACKAGE, OTHER_SERVICE)); startService(intent);
2，跨进程绑定Service
2.1 Service进程创建aidl
2.2 onBind返回绑定对象
@Override
public IBinder onBind(Intent intent) {
return new IMyAidlInterface.Stub() {
@Override
public void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, String aString) throws RemoteException {
}
};
}
2.3 在第1个进程调用bindService与unbindService
package com.example.superleeq.myapplication;
public class MainActivity extends Activity implements ServiceConnection {
final static String OTHER_PACKAGE = "com.example.superleeq.myapplication2";
final static String OTHER_SERVICE = "com.example.superleeq.myapplication2.MyService";
boolean isbinded;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}
private void initView() {
findViewById(R.id.activity_main_button1).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setComponent(new ComponentName(OTHER_PACKAGE, OTHER_SERVICE));
isbinded = bindService(intent, MainActivity.this, Context.BIND_AUTO_CREATE);
}
});
findViewById(R.id.activity_main_button2).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isbinded) {
unbindService(MainActivity.this);
isbinded = false;
} else {
LogUtil.log("already unbindservice");
}
}
});
}
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
LogUtil.log("onServiceConnected ComponentName name = " + name + " , IBinder service = " + service);
}
@Override
public void onServiceDisconnected(ComponentName name) {
LogUtil.log("onServiceDisconnected ComponentName name = " + name);
}
}
3，跨进程与Service通信
3.1 aidl folder + package + class必须两个工程完全一致
3.2 app2 Service
package com.example.superleeq.myapplication2;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
public class MyService extends Service {
private String mData = "default data";
private boolean running;
public MyService() {
}
@Override
public void onCreate() {
super.onCreate();
Log.e("lq", "MyService.onCreate");
new Thread(new Runnable() {
@Override
public void run() {
running = true;
while (running){
Log.e("lq", "MyService.mdata=" + mData);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
}
@Override
public void onDestroy() {
super.onDestroy();
Log.e("lq", "MyService.onDestroy");
running = false;
}
@Override
public IBinder onBind(Intent intent) {
Log.e("lq", "MyService.onBind Intent intent=" + intent);
return new IMyAidlInterface.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 {
mData = data;
}
};
}
}
3.3 app1 mainActivity
package com.example.superleeq.myapplication;
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.os.RemoteException;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.EditText;
import com.example.superleeq.myapplication.util.LogUtil;
import com.example.superleeq.myapplication2.IMyAidlInterface;
public class MainActivity extends Activity implements ServiceConnection {
final static String OTHER_PACKAGE = "com.example.superleeq.myapplication2";
final static String OTHER_SERVICE = "com.example.superleeq.myapplication2.MyService";
boolean isbinded;
IMyAidlInterface binder = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}
private void initView() {
findViewById(R.id.activity_main_button1).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
//android5.0以后仅支持显示意图启动
intent.setComponent(new ComponentName(OTHER_PACKAGE, OTHER_SERVICE));
isbinded = bindService(intent, MainActivity.this, Context.BIND_AUTO_CREATE);
}
});
findViewById(R.id.activity_main_button2).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
binder = null;
if (isbinded) {
unbindService(MainActivity.this);
isbinded = false;
} else {
LogUtil.log("already unbindservice");
}
}
});
final EditText editText = (EditText) findViewById(R.id.mInput);
editText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
if (binder != null) {
try {
binder.setData(s.toString());
} catch (RemoteException e) {
e.printStackTrace();
}
}
}
});
findViewById(R.id.setdata).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (binder != null) {
try {
binder.setData(editText.getText().toString());
} catch (RemoteException e) {
e.printStackTrace();
}
}
}
});
}
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
LogUtil.log("onServiceConnected ComponentName name = " + name + " , IBinder service = " + service);
//不能强制转换，否则报错
binder = IMyAidlInterface.Stub.asInterface(service);
}
@Override
public void onServiceDisconnected(ComponentName name) {
//onServiceDisconnected()方法在正常情况下即使unbindService是不被调用的，它的调用时机是当Service服务被异外销毁时，例如内存的资源不足时
LogUtil.log("onServiceDisconnected ComponentName name = " + name);
}
}
时间： 2024-12-17 19:59:45