Android——Service

<?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>

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();
}
}

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