发布于 2017-05-31 22:15:00 | 200 次阅读 | 评论: 0 | 来源: 网友投递
Android移动端操作系统
Android是一种基于Linux的自由及开放源代码的操作系统，主要使用于移动设备，如智能手机和平板电脑，由Google公司和开放手机联盟领导及开发。尚未有统一中文名称，中国大陆地区较多人使用“安卓”或“安致”。
Android 监听WiFi的开关状态实现代码
WifiSwitch_Presenter 源码：
package com.yiba.wifi.sdk.lib.presenter;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.WifiManager;
/**
* Created by ${zhaoyanjun} on 2017/3/29.
* Wifi 开关监听
*/
public class WifiSwitch_Presenter {
private Context mContext ;
private Receiver receiver ;
private WifiSwitch_Interface mInterface ;
public WifiSwitch_Presenter( Context context , WifiSwitch_Interface mInterface ){
this.mContext = context ;
this.mInterface = mInterface ;
observeWifiSwitch();
}
private void observeWifiSwitch(){
IntentFilter filter = new IntentFilter();
filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
receiver = new Receiver() ;
mContext.registerReceiver(receiver, filter);
}
/**
* 释放资源
*/
public void onDestroy(){
if ( receiver != null ){
mContext.unregisterReceiver( receiver );
}
if (mContext!=null){
mContext = null;
}
}
class Receiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
int wifiState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 0);
switch (wifiState) {
case WifiManager.WIFI_STATE_DISABLED:
if (mInterface != null){
mInterface.wifiSwitchState(WifiSwitch_Interface.WIFI_STATE_DISABLED);
}
break;
case WifiManager.WIFI_STATE_DISABLING:
if (mInterface != null){
mInterface.wifiSwitchState(WifiSwitch_Interface.WIFI_STATE_DISABLING);
}
break;
case WifiManager.WIFI_STATE_ENABLED:
if (mInterface != null){
mInterface.wifiSwitchState(WifiSwitch_Interface.WIFI_STATE_ENABLED);
}
break;
case WifiManager.WIFI_STATE_ENABLING:
if ( mInterface != null ) {
mInterface.wifiSwitchState(WifiSwitch_Interface.WIFI_STATE_ENABLING);
}
break;
case WifiManager.WIFI_STATE_UNKNOWN:
if ( mInterface != null ){
mInterface.wifiSwitchState( WifiSwitch_Interface.WIFI_STATE_UNKNOWN );
}
break;
}
}
}
}
WifiSwitch_Interface 源码
package com.yiba.wifi.sdk.lib.presenter;
/**
* Created by ${zhaoyanjun} on 2017/3/29.
* Wifi 开关监听
*/
public interface WifiSwitch_Interface {
int WIFI_STATE_ENABLING = 0 ;
int WIFI_STATE_ENABLED = 1 ;
int WIFI_STATE_DISABLING = 2 ;
int WIFI_STATE_DISABLED = 3 ;
int WIFI_STATE_UNKNOWN = 4 ;
void wifiSwitchState( int state );
}
使用方式 MainActivity ：
package com.yiba.core;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity implements WifiSwitch_Interface {
private WifiSwitch_Presenter wifiSwitch_presenter ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
wifiSwitch_presenter = new WifiSwitch_Presenter( this , this ) ;
}
@Override
public void wifiSwitchState(int state) {
switch ( state ){
case WifiSwitch_Interface.WIFI_STATE_DISABLED :
Toast.makeText(this, "WiFi 已经关闭", Toast.LENGTH_SHORT).show();
break;
case WifiSwitch_Interface.WIFI_STATE_DISABLING:
Toast.makeText(this, "WiFi 正在关闭", Toast.LENGTH_SHORT).show();
break;
case WifiSwitch_Interface.WIFI_STATE_ENABLED :
Toast.makeText(this, "WiFi 已经打开", Toast.LENGTH_SHORT).show();
break;
case WifiSwitch_Interface.WIFI_STATE_ENABLING :
Toast.makeText(this, "WiFi 正在打开", Toast.LENGTH_SHORT).show();
break;
}
}
@Override
protected void onDestroy() {
super.onDestroy();
//释放资源
if ( wifiSwitch_presenter != null ){
wifiSwitch_presenter.onDestroy();
}
}
}
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