Android——Service

xml

<?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.chenshuai.myapplication.ActivityService"
    android:orientation="vertical">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="测试普通服务"
        android:textSize="30sp"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="一般启动服务"
            android:onClick="yibanqdonclick"/>
        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="一般停止服务"
            android:onClick="yibantzonclick" />
    </LinearLayout>
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="测试绑定服务"
        android:textSize="30sp"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="绑定启动服务"
            android:onClick="bangdingqdonclick"/>
        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="绑定停止服务"
            android:onClick="bangdingtzonclick" />
    </LinearLayout>

</LinearLayout>

MyService_1.java

package com.example.chenshuai.myapplication;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Toast;

public class ActivityService extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_activity_service);
    }

    //普通方式启动Service
    //参考Activity的启动方式
    public void yibanqdonclick(View view)
    {
        //通过意图
        //显示意图
        Intent intent = new Intent(this,MyService_1.class);
        startService(intent);

        Toast.makeText(ActivityService.this, "启动Service", Toast.LENGTH_SHORT).show();
    }
    public void yibantzonclick(View view)
    {
        //通过意图
        //显示意图
        Intent intent = new Intent(this,MyService_1.class);
        stopService(intent);

        Toast.makeText(ActivityService.this, "启动Service", Toast.LENGTH_SHORT).show();
    }
    ServiceConnection serviceConnection;
    public void bangdingqdonclick(View view)
    {
        Intent intent = new Intent(this,MyService_1.class);

        //实现ServiceConnection接口
        if (serviceConnection == null) {
            serviceConnection = new ServiceConnection() {
                @Override
                public void onServiceConnected(ComponentName name, IBinder service) {

                    Log.e("TAG", "连接服务");

                }

                @Override
                public void onServiceDisconnected(ComponentName name) {

                    Log.e("TAG", "断开连接");

                }
            };
        }
        //参数：意图，连接，连接方式 BIND_AUTO_CREATE自动创建
        bindService(intent,serviceConnection, Context.BIND_AUTO_CREATE);

        Toast.makeText(ActivityService.this, "连接服务成功", Toast.LENGTH_SHORT).show();
    }

    public void bangdingtzonclick(View view)
    {
        //判断是否已经绑定，连接是否为空
        if (serviceConnection != null)
        {
            //解除绑定
            unbindService(serviceConnection);

            serviceConnection = null;

            Toast.makeText(ActivityService.this, "解除绑定", Toast.LENGTH_SHORT).show();
        }
        else
        {
            Toast.makeText(ActivityService.this, "尚未绑定", Toast.LENGTH_SHORT).show();
        }
    }

    //重写回调方法，防止强制退出时，绑定服务还在运行
    @Override
    protected void onDestroy() {

        if (serviceConnection != null) {
            //解除绑定
            unbindService(serviceConnection);

            serviceConnection = null;
        }
        super.onDestroy();
    }
}

ActivityService.java

package com.example.chenshuai.myapplication;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Toast;

public class ActivityService extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_activity_service);
    }

    //普通方式启动Service
    //参考Activity的启动方式
    public void yibanqdonclick(View view)
    {
        //通过意图
        //显示意图
        Intent intent = new Intent(this,MyService_1.class);
        startService(intent);

        Toast.makeText(ActivityService.this, "启动Service", Toast.LENGTH_SHORT).show();
    }
    public void yibantzonclick(View view)
    {
        //通过意图
        //显示意图
        Intent intent = new Intent(this,MyService_1.class);
        stopService(intent);

        Toast.makeText(ActivityService.this, "启动Service", Toast.LENGTH_SHORT).show();
    }
    ServiceConnection serviceConnection;
    public void bangdingqdonclick(View view)
    {
        Intent intent = new Intent(this,MyService_1.class);

        //实现ServiceConnection接口
        if (serviceConnection == null) {
            serviceConnection = new ServiceConnection() {
                @Override
                public void onServiceConnected(ComponentName name, IBinder service) {

                    Log.e("TAG", "连接服务");

                }

                @Override
                public void onServiceDisconnected(ComponentName name) {

                    Log.e("TAG", "断开连接");

                }
            };
        }
        //参数：意图，连接，连接方式 BIND_AUTO_CREATE自动创建
        bindService(intent,serviceConnection, Context.BIND_AUTO_CREATE);

        Toast.makeText(ActivityService.this, "连接服务成功", Toast.LENGTH_SHORT).show();
    }

    public void bangdingtzonclick(View view)
    {
        //判断是否已经绑定，连接是否为空
        if (serviceConnection != null)
        {
            //解除绑定
            unbindService(serviceConnection);

            serviceConnection = null;

            Toast.makeText(ActivityService.this, "解除绑定", Toast.LENGTH_SHORT).show();
        }
        else
        {
            Toast.makeText(ActivityService.this, "尚未绑定", Toast.LENGTH_SHORT).show();
        }
    }

    //重写回调方法，防止强制退出时，绑定服务还在运行
    @Override
    protected void onDestroy() {

        if (serviceConnection != null) {
            //解除绑定
            unbindService(serviceConnection);

            serviceConnection = null;
        }
        super.onDestroy();
    }
}

minifest.xml

 <service
            android:name=".MyService_1"
            android:enabled="true"
            android:exported="true" />