                        课程
                    
                        /移动开发
                        
                            /Android
                        
                        /AIDL-小白成长记

一按计算结果的时候就报错

04-11 02:39:02.488 2986-2986/com.example.wwq.aidlclient E/AndroidRuntime: FATAL EXCEPTION: main

Process: com.example.wwq.aidlclient, PID: 2986

java.lang.NullPointerException: Attempt to invoke interface method 'int com.example.wwq.myapplication.IMyAidl.add(int, int)' on a null object reference

at com.example.wwq.aidlclient.MainActivity.onClick(MainActivity.java:66)

at android.view.View.performClick(View.java:4780)

at android.view.View$PerformClick.run(View.java:19866)

at android.os.Handler.handleCallback(Handler.java:739)

at android.os.Handler.dispatchMessage(Handler.java:95)

at android.os.Looper.loop(Looper.java:135)

at android.app.ActivityThread.main(ActivityThread.java:5254)

at java.lang.reflect.Method.invoke(Native Method)

at java.lang.reflect.Method.invoke(Method.java:372)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

qq_little权权

2016-04-11

源自：AIDL-小白成长记 2-2

关注问题我要回答

1376

操作

收起

13 回答

Js_Ly
2016-04-24

服务端注册Service

试试

0 回复有任何疑惑可以回复我~

收起回答

qq_little权权提问者

这个.AIDL是什么

2016-04-25 回复有任何疑惑可以回复我~

你看起来很好吃哦
2016-04-18

if(!edt_num1.getText().toString().equals("") && !edt_num2.getText().toString().equals("")){
int num1 = Integer.parseInt(edt_num1.getText().toString());
int num2 = Integer.parseInt(edt_num2.getText().toString());
try {
int res = sueAidl.add(num1,num2);
edt_res.setText(res+"");
} catch (RemoteException e) {
e.printStackTrace();
}
}else{
Snackbar.make(v, "请输入两个值", Snackbar.LENGTH_LONG).show();
}