Android studio 使用aidl实现远程服务

淡淡的烟草味﹌ 2022-09-21 11:54 164阅读 0赞

*  AIDL
    
     *  定义
     *  在androidstudio简单使用
        
         *  服务端
         *  客户端
     *  代码

# AIDL #

## 定义 ##

Android Interface definition language的缩写，它是一种android内部进程通信接口的描述语言，通过它我们可以定义进程间的通信接口

## 在androidstudio简单使用 ##

### 服务端 ###

1.  新建服务

public class TestService extends Service { 
        private static final String TAG = "TestService";
        @Nullable
        @Override
        public IBinder onBind(Intent intent) {
            Log.e(TAG, "onBind: " );
            return new TextBinder();
        }
    
        class TextBinder extends IMyAidlInterface.Stub{ 
    
            @Override
            public void pay(int money) throws RemoteException {
                TestService.this.pay(money);
            }
        }
        public void pay(int money){
            Log.e(TAG, "pay: "+money+"sueecss" );
        }
    }

1.    
    
2.  新建aidl文件

> app右键 new->aidl

// IMyAidlInterface.aidl
    package cn.zsp.aidldemo_01;
    
    // Declare any non-default types here with import statements
    
    interface IMyAidlInterface { 
        void pay(int money);
    }

> Build ->mark project (生成对应的java文件)

### 客户端 ###

1.  复制服务端的aidl （包括包要完全一致）
2.  客户端代码

package cn.zsp.aidldemo_02;
    
    import android.content.ComponentName;
    import android.content.Context;
    import android.content.Intent;
    import android.content.IntentFilter;
    import android.content.ServiceConnection;
    import android.content.pm.PackageManager;
    import android.content.pm.ResolveInfo;
    import android.os.IBinder;
    import android.os.RemoteException;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.EditText;
    import android.widget.Toast;
    
    import java.util.List;
    
    import cn.zsp.aidldemo_01.IMyAidlInterface;
    
    public class MainActivity extends AppCompatActivity { 
        private EditText etMoney;
        private IMyAidlInterface mMyAidlInterface;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            etMoney= (EditText) findViewById(R.id.etMoney);
            Intent intent=new Intent();
            intent.setAction("cn.zsp.testservice");
            Intent intent1=new Intent(getExplicitIntent(this,intent));
            bindService(intent1, new ServiceConnection() {
    
    
                @Override
                public void onServiceConnected(ComponentName name, IBinder service) {
                    mMyAidlInterface = IMyAidlInterface.Stub.asInterface(service);
                    Toast.makeText(MainActivity.this, "服务连接成功", Toast.LENGTH_SHORT).show();
                    //服务链接成功才能进行后续操作 否者会报空指针异常 服务连接需要时间
    
                }
    
                @Override
                public void onServiceDisconnected(ComponentName name) {
                    Toast.makeText(MainActivity.this, "服务连接失败", Toast.LENGTH_SHORT).show();
                }
            },BIND_AUTO_CREATE);
        }
    
        public void pay(View view){
            try {
                String money=etMoney.getText().toString().trim();
                mMyAidlInterface.pay(Integer.parseInt(money));
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }
    
        /** * Android 5.0 之后 服务必须显示启动 所以需要把隐式改成显示启动 * @param context * @param implicitIntent * @return */
        public static Intent getExplicitIntent(Context context, Intent implicitIntent) {
            // Retrieve all services that can match the given intent
            PackageManager pm = context.getPackageManager();
            List<ResolveInfo> resolveInfo = pm.queryIntentServices(implicitIntent, 0);
            // Make sure only one match was found
            if (resolveInfo == null || resolveInfo.size() != 1) {
                return null;
            }
            // Get component info and create ComponentName
            ResolveInfo serviceInfo = resolveInfo.get(0);
            String packageName = serviceInfo.serviceInfo.packageName;
            String className = serviceInfo.serviceInfo.name;
            ComponentName component = new ComponentName(packageName, className);
            // Create a new intent. Use the old one for extras and such reuse
            Intent explicitIntent = new Intent(implicitIntent);
            // Set the component to be explicit
            explicitIntent.setComponent(component);
            return explicitIntent;
        }
    }

## 代码 ##

链接：[http://pan.baidu.com/s/1nvdCKFv][http_pan.baidu.com_s_1nvdCKFv] 密码：es58

[http_pan.baidu.com_s_1nvdCKFv]: http://pan.baidu.com/s/1nvdCKFv