【发布时间】：2018-04-05 01:02:03
【问题描述】：
实际上我正在尝试通过接收器在后台检查网络连接。 编码，一切正常。但显示权限问题。 请尝试帮助我。
下面是我的代码。
NetworkChangeReceiver：
public class NetworkChangeReceiver extends BroadcastReceiver
{
public static final String NETWORK_AVAILABLE_ACTION = "com.onnurinet.NetworkAvailable";
public static final String IS_NETWORK_AVAILABLE = "isNetworkAvailable";
@Override
public void onReceive(Context context, Intent intent)
{
try
{
if (isOnline(context)) {
// dialog(true,context);
Toast.makeText(context,"connection is there",Toast.LENGTH_SHORT).show();
Log.e("TAG", "Online Connect Intenet ");
} else {
//dialog(false,context);
Log.e("TAG", "Conectivity Failure !!! ");
Toast.makeText(context,"Could not Connect to internet",Toast.LENGTH_SHORT).show();
}
} catch (NullPointerException e) {
e.printStackTrace();
}
}
private boolean isOnline(Context context) {
try {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
//should check null because in airplane mode it will be null
return (netInfo != null && netInfo.isConnected());
} catch (SecurityException e) {
e.printStackTrace();
return false;
}
}
}
BroadcastEvent 类：
public class BroadcastEvent extends Activity {
Boolean networkStatus;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/*int permissionCheck = ContextCompat.checkSelfPermission(BroadcastEvent.this,
Manifest.permission.ACCESS_NETWORK_STATE);*/
IntentFilter intentFilter = new IntentFilter(NetworkChangeReceiver.NETWORK_AVAILABLE_ACTION);
LocalBroadcastManager.getInstance(this).registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
boolean isNetworkAvailable = intent.getBooleanExtra(IS_NETWORK_AVAILABLE, false);
networkStatus = Boolean.valueOf(isNetworkAvailable ? "connected" : "disconnected");
if(networkStatus){
Toast.makeText(getApplicationContext(),"Network Status: " + networkStatus, Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(getApplicationContext(),"Network Status: " + networkStatus, Toast.LENGTH_SHORT).show();
}
// Toast.makeText(getApplicationContext(),"Network Status: " + networkStatus, Toast.LENGTH_SHORT).show();
//Snackbar.make(findViewById(R.id.activity_main), "Network Status: " + networkStatus, Snackbar.LENGTH_LONG).show();
}
}, intentFilter);
}
}
清单文件：
<?xml version="1.0" encoding="utf-8"?>
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<supports-screens
android:anyDensity="true"
android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:xlargeScreens="true" />
//------------------------------STBService---------------------------------------
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="ANDROID.PERMISSION.INTERNET" />
<uses-permission android:name="ANDROID.PERMISSION.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:hardwareAccelerated="false"
android:icon="@mipmap/airstream_logo"
android:label="@string/app_name"
android:name=".MyApplication"
android:theme="@style/AppTheme">
<activity
android:name=".HomeMainActivity"
android:screenOrientation="portrait"
android:theme="@style/Theme.AppCompat.NoActionBar" />
<activity
android:name=".BroadcastEvent"
android:label="@string/app_name"
android:theme="@style/Theme.AppCompat.Light.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="com.onnurinet.receivers.NetworkChangeReceiver">
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
<action android:name="android.net.wifi.WIFI_STATE_CHANGED"/>
</intent-filter>
</receiver>
请尝试检查我的代码并告诉我哪里出错了。我清理了项目并在 google 中检查，但仍然没有遇到问题。
错误：
10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err: java.lang.SecurityException: ConnectivityService: Neither user 10405 nor current process has android.permission.ACCESS_NETWORK_STATE.
10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err：在 android.os.Parcel.readException(Parcel.java:1546) 10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err: 在 android.os.Parcel.readException(Parcel.java:1499) 10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err: 在 android.net.IConnectivityManager$Stub$Proxy.getActiveNetworkInfo(IConnectivityManager.java:964) 10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err: 在 android.net.ConnectivityManager.getActiveNetworkInfo(ConnectivityManager.java:610) 10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err: 在 com.onnurinet.receivers.NetworkChangeReceiver.isOnline(NetworkChangeReceiver.java:41) 10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err：在 com.onnurinet.receivers.NetworkChangeReceiver.onReceive(NetworkChangeReceiver.java:23) 10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err: 在 android.app.ActivityThread.handleReceiver(ActivityThread.java:2642) 10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err: 在 android.app.ActivityThread.access$1800(ActivityThread.java:154) 10-24 15:13:16.601 19293-19293/com.onnet.airstream W/System.err: 在 android.app.ActivityThread$H.handleMessage(ActivityThread.java:1398) 10-24 15:13:16.602 19293-19293/com.onnet.airstream W/System.err: 在 android.os.Handler.dispatchMessage(Handler.java:102) 10-24 15:13:16.602 19293-19293/com.onnet.airstream W/System.err: 在 android.os.Looper.loop(Looper.java:135) 10-24 15:13:16.602 19293-19293/com.onnet.airstream W/System.err: 在 android.app.ActivityThread.main(ActivityThread.java:5292) 10-24 15:13:16.602 19293-19293/com.onnet.airstream W/System.err：在 java.lang.reflect.Method.invoke（本机方法） 10-24 15:13:16.602 19293-19293/com.onnet.airstream W/System.err: 在 java.lang.reflect.Method.invoke(Method.java:372) 10-24 15:13:16.602 19293-19293/com.onnet.airstream W/System.err: 在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904) 10-24 15:13:16.602 19293-19293/com.onnet.airstream W/System.err: 在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
【问题讨论】：
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错误是什么？？
-
在这个问题上分享你的堆栈跟踪。
-
请找到我更新的问题