Android使用bindService作为中间人对象开启服务 _中间人

非淡泊无以明志，非宁静无以致远。这篇文章主要讲述Android使用bindService作为中间人对象开启服务相关的知识，希望能为你提供帮助。
android使用bindService作为中间人对象开启服务
项目结构如下:

文章图片

MyService:

package com.demo.secondservice; import android.app.Service; import android.content.Intent; import android.os.Binder; import android.os.IBinder; import android.widget.Toast; public class MyService extends Service { public MyService() { }@Override public IBinder onBind(Intent intent) {return new MyBind(); }public void banZheng(int money) {if(money> 1000){ Toast.makeText(getApplicationContext(), " 帮你办" , Toast.LENGTH_LONG).show(); }else {Toast.makeText(getApplicationContext(), " 钱少,不办" , Toast.LENGTH_LONG).show(); } }//定义中间人 public classMyBind extends Binder{publicvoidcallBanZheng(int money){//调用办证的方法 banZheng(money); }} }

MainActivity:

package com.demo.secondservice; import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.os.IBinder; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; public class MainActivity extends AppCompatActivity { MyConn myConn; MyService.MyBind myBind; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Intent intent = new Intent(MainActivity.this, MyService.class); //startService(intent); //连接服务 myConn = new MyConn(); bindService(intent,myConn,BIND_AUTO_CREATE); }public void click(View view) {//自己new对象脱离了谷歌框架 //MyService myService = new MyService(); myBind.callBanZheng(10200); }//监视服务的状态 privateclass MyConn implements ServiceConnection{//当服务连接成功调用 @Override public void onServiceConnected(ComponentName name, IBinder service) {myBind = (MyService.MyBind) service; }//失去连接 @Override public void onServiceDisconnected(ComponentName name) {} }@Override protected void onDestroy() {//解绑服务 unbindService(myConn); super.onDestroy(); } }

【Android使用bindService作为中间人对象开启服务】activity_main.xml:

< ?xml version=" 1.0" encoding=" utf-8" ?> < android.support.constraint.ConstraintLayout xmlns:android=" http://schemas.android.com/apk/res/android" xmlns:app=" http://schemas.android.com/apk/res-auto" xmlns:tools=" http://schemas.android.com/tools" android:layout_width=" match_parent" android:layout_height=" match_parent" tools:context=" .MainActivity" > < TextView android:layout_width=" wrap_content" android:layout_height=" wrap_content" android:text=" Hello World!" app:layout_constraintBottom_toBottomOf=" parent" app:layout_constraintLeft_toLeftOf=" parent" app:layout_constraintRight_toRightOf=" parent" app:layout_constraintTop_toTopOf=" parent" /> < Button android:onClick=" click" android:layout_width=" wrap_content" android:layout_height=" wrap_content" android:text=" 开启服务" /> < /android.support.constraint.ConstraintLayout>