AIDL使用demo实例代码

package com.yl.aidl1; import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.os.Bundle; import android.os.IBinder; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import androidx.appcompat.app.AppCompatActivity; import com.yl.aidl2.QueryData; public class MainActivity extends AppCompatActivity { private EditText ed = null; private Button btn = null; private TextView data = null; private QueryData queryData = null; private ServiceConnection conn = new QueryServiceConnection(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ed = findViewById(R.id.ed); btn = findViewById(R.id.btn); data = findViewById(R.id.data); Intent intent = new Intent("com.yl.aidltest"); intent.setPackage("com.yl.aidl2");//要跳转的包名 bindService(intent, conn, BIND_AUTO_CREATE); btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { String str = ed.getText().toString().trim(); int num = Integer.parseInt(str); query(num); } }); } private void query(int num) { Log.e("TAG", num + ""); try { String str = queryData.QueryListData(num); data.setText(str); } catch (Exception e) { e.printStackTrace(); data.setText("异常报错"); } } public final class QueryServiceConnection implements ServiceConnection { @Override public void onServiceConnected(ComponentName name, IBinder service) { queryData = QueryData.Stub.asInterface(service); Log.e("TAG", queryData.toString()); } @Override public void onServiceDisconnected(ComponentName name) { queryData = null; } } @Override protected void onDestroy() { unbindService(conn); super.onDestroy(); } }