• Service分类,生命周期,普通方式启动


    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        tools:context="com.example.lenovo.service.MainActivity"
        android:orientation="vertical">
    
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="普通方式启动"
            android:onClick="bt_1"/>
    
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="普通方式停止"
            android:onClick="bt_2"/>
    activity
    package com.example.lenovo.service;
    
    import android.app.Service;
    import android.content.Intent;
    import android.os.Binder;
    import android.os.IBinder;
    import android.util.Log;
    
    public class MyService extends Service {
        public MyService() {
            Log.e("TAG","MyService被创建");
        }
    
        @Override
        public void onCreate() {
            Log.e("TAG","onCreate被调用");
            super.onCreate();
        }
    
        @Override
        public void onDestroy() {
            Log.e("TAG","onDestroy被调用");
            super.onDestroy();
        }
    
        @Override
        public void onRebind(Intent intent) {
            Log.e("TAG","onRebind被调用");
            super.onRebind(intent);
        }
    
        @Override
        public boolean onUnbind(Intent intent) {
            Log.e("TAG","onUnbind被调用");
            return super.onUnbind(intent);
        }
    
        @Override
        public int onStartCommand(Intent intent, int flags, int startId) {
            String string = intent.getStringExtra("test");
            Log.e("TAG","onStartCommand被调用,并收到数据="+string);
            return super.onStartCommand(intent, flags, startId);
        }
    
        public class MyBinder extends Binder
        {
            //定义数据交换的方法
    
        }
    
        //回调方法
        //绑定
        @Override
        public IBinder onBind(Intent intent) {
            Log.e("TAG","onBind被调用");
            // TODO: Return the communication channel to the service.
    
            //throw new UnsupportedOperationException("Not yet implemented");
            return new MyBinder();
        }
    }
    MyService
    package com.example.lenovo.service;
    
    import android.content.ComponentName;
    import android.content.Context;
    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;
    import android.widget.Toast;
    
    public class MainActivity extends AppCompatActivity {
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
        }
    
        //普通方式启动
        public void bt_1(View v)
        {
            //准备Intent:显式意图
            Intent intent = new Intent(this,MyService.class);
            intent.putExtra("test","发送的数据");
            //启动Service
            startService(intent);
            Toast.makeText(MainActivity.this, "Service已启动", Toast.LENGTH_SHORT).show();
        }
        //普通方式关闭
        public void bt_2(View v)
        {
            //准备Intent:显式意图
            Intent intent = new Intent(this,MyService.class);
            //关闭Service
            stopService(intent);
            Toast.makeText(MainActivity.this, "Service已停止", Toast.LENGTH_SHORT).show();
        }
    java

    继承于Service,并在AndroidManifest中注册

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  • 原文地址:https://www.cnblogs.com/1ming/p/5620176.html
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