Android的复选框preference不与广播Reciever工作 [英] Android CheckboxPreference doesn't work with Broadcast Reciever
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问题描述
我试图禁用无线当分钟后无法连接到任何网络。但得到的一些问题。
当我运行的应用程序。它开始工作，并尝试禁用无线网络，这不是连接到任何网络。我不能阻止它这是平均值。我有一个复选框preference A preference活动。它的打开/关闭该功能的设置。我想，当用户签的复选框，才能正常工作。如果取消选中，停止工作。但现在，它的工作随时失控。复选框是开启/关闭功能不起作用。
这里是我的code。有什么不对我的code？请帮我。
MyActivity.java
公共类MyActivity扩展$ P $ {pferenceActivity @覆盖
公共无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）;
加preferencesFromResource（R.layout preFES）; preference preference =（preference）找到preference（Strings.SETTINGS_WIFI_TIMEOUT）; preference
.setOn preferenceChangeListener（新在preferenceChangeListener（）{ @覆盖
公共布尔在preferenceChange（preference preference，
Object对象）{
如果（Boolean.TRUE.equals（对象））{
意向意图=新意图（getApplicationContext（）
MyService.class）;
startService（意向）;
}其他{
stopService（新意图（getApplicationContext（）
MyService.class））;
Toast.makeText（getApplicationContext（），
一站式服务，Toast.LENGTH_SHORT）.show（）;
}
返回true;
}
}）; }
}
MyService.java
公共类的MyService扩展服务{
INT mStartMode; //指示如何做人，如果该服务被杀害
的IBinder mBinder; //接口，用于客户端绑定
布尔mAllowRebind; //表示onRebind是否应使用 @覆盖
公众的IBinder onBind（意向为arg0）{
//一个客户端）的结合与bindService服务（
返回mBinder;
} @覆盖
公共无效onRebind（意向意图）{
super.onRebind（意向）;
} @覆盖
公共无效的onCreate（）{
super.onCreate（）; } @覆盖
公众诠释onStartCommand（意向意图，诠释标志诠释startId）{ //该服务正在启动，由于对startService（）的调用
Toast.makeText（这一点，服务启动，Toast.LENGTH_SHORT）.show（）; WifiManager wifiManager =（WifiManager）getSystemService（Context.WIFI_SERVICE）;
ConnectivityManager厘米=（ConnectivityManager）MyService.this
.getSystemService（Context.CONNECTIVITY_SERVICE）;
的NetworkInfo activeNetwork = cm.getActiveNetworkInfo（）;
布尔isConnected = activeNetwork！= NULL
＆功放;＆安培; activeNetwork.isConnectedOrConnecting（）; 如果（isConnected）{ }其他{
wifiManager.setWifiEnabled（假）;
} 返回Service.START_STICKY;
} @覆盖
公共无效的onDestroy（）{
Toast.makeText（这一点，做服务，Toast.LENGTH_SHORT）.show（）;
}
}
WifiWatcher.java
公共类WiFiWatcher扩展广播接收器{
@覆盖
公共无效的onReceive（上下文的背景下，意图ARG1）{
ConnectivityManager厘米=（ConnectivityManager）上下文
.getSystemService（Context.CONNECTIVITY_SERVICE）; WifiManager wifiManager =（WifiManager）上下文
.getSystemService（Context.WIFI_SERVICE）;
的NetworkInfo activeNetwork = cm.getActiveNetworkInfo（）;
布尔isConnected = activeNetwork！= NULL
＆功放;＆安培; activeNetwork.isConnectedOrConnecting（）; 如果（isConnected）{ }其他{
wifiManager.setWifiEnabled（假）;
} }
}
的Manifest.xml
＆lt;接收机器人：名字=com.example.example.service.WiFiWatcher机器人：启用=真正的＆GT;
＆所述;意图滤光器＆gt;
＆lt;作用机器人：名字=android.net.wifi.WIFI_STATE_CHANGED/＆GT;
＆lt;作用机器人：名字=android.net.wifi.STATE_CHANGE/＆GT;
＆所述; /意图滤光器＆gt;
＆LT; /接收器＆GT;＆LT;使用许可权的android：NAME =android.permission.INTERNET对/＆GT;
＆LT;使用许可权的android：NAME =android.permission.ACCESS_FINE_LOCATION/＆GT;
＆LT;使用许可权的android：NAME =android.permission.ACCESS_NETWORK_STATE/＆GT;
＆LT;使用许可权的android：NAME =android.permission.WRITE_EXTERNAL_STORAGE/＆GT;
＆LT;使用许可权的android：NAME =android.permission.ACCESS_WIFI_STATE＆GT;
＆LT; /使用许可权＆GT;
＆LT;使用许可权的android：NAME =android.permission.CHANGE_WIFI_STATE/＆GT;
＆LT;使用许可权的android：NAME =android.permission.RECEIVE_BOOT_COMPLETED/＆GT;
解决方案
我想你应该也进入这两个权限
＆LT;使用许可权的android：NAME =android.permission.ACCESS_WIFI_STATE＆GT;＆LT; /使用许可权＆GT;
＆LT;使用许可权的android：NAME =android.permission.CHANGE_WIFI_STATE＆GT;＆LT; /使用许可权＆GT;
I'm trying to disable Wifi when not connect to any network after a min. But getting some problems.
When i run the app. It start working and try to disable wifi that's not connect to any network. It's mean I can't stop it. I have a Preference Activity with CheckBoxPreference. It's the setting to turn on/off this feature. I want to only work when user checked the checkbox. If uncheck, stop working. But right now, It's working anytime out of control. CheckBox is doesn't work for turn on/off feature.
Here is my code. What is wrong with mycode? Please help me.
MyActivity.java
public class MyActivity extends PreferenceActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.layout.prefes);
Preference preference = (Preference) findPreference(Strings.SETTINGS_WIFI_TIMEOUT);
preference
.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
@Override
public boolean onPreferenceChange(Preference preference,
Object object) {
if (Boolean.TRUE.equals(object)) {
Intent intent = new Intent(getApplicationContext(),
MyService.class);
startService(intent);
} else {
stopService(new Intent(getApplicationContext(),
MyService.class));
Toast.makeText(getApplicationContext(),
"Stop service", Toast.LENGTH_SHORT).show();
}
return true;
}
});
}
}
MyService.java
public class MyService extends Service {
int mStartMode; // indicates how to behave if the service is killed
IBinder mBinder; // interface for clients that bind
boolean mAllowRebind; // indicates whether onRebind should be used
@Override
public IBinder onBind(Intent arg0) {
// A client is binding to the service with bindService()
return mBinder;
}
@Override
public void onRebind(Intent intent) {
super.onRebind(intent);
}
@Override
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// The service is starting, due to a call to startService()
Toast.makeText(this, "service starting", Toast.LENGTH_SHORT).show();
WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
ConnectivityManager cm = (ConnectivityManager) MyService.this
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
boolean isConnected = activeNetwork != null
&& activeNetwork.isConnectedOrConnecting();
if (isConnected) {
} else {
wifiManager.setWifiEnabled(false);
}
return Service.START_STICKY;
}
@Override
public void onDestroy() {
Toast.makeText(this, "service done", Toast.LENGTH_SHORT).show();
}
}
WifiWatcher.java
public class WiFiWatcher extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent arg1) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
WifiManager wifiManager = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
boolean isConnected = activeNetwork != null
&& activeNetwork.isConnectedOrConnecting();
if (isConnected) {
} else {
wifiManager.setWifiEnabled(false);
}
}
}
Manifest.xml
<receiver android:name="com.example.example.service.WiFiWatcher" android:enabled="true">
<intent-filter>
<action android:name="android.net.wifi.WIFI_STATE_CHANGED" />
<action android:name="android.net.wifi.STATE_CHANGE" />
</intent-filter>
</receiver>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
解决方案
I think you should be entering both these permissions also
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
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