Java 连接恢复后是否重新加载WebView?
[已解决][固定代码如下] 这是一个带有网络视图的小应用程序,我想在重新连接到internet时重新加载它。我打开应用程序(连接互联网),它会显示网页(google.com.ar),当我断开WiFi和3G连接时,如果我在网上导航,它会显示错误消息,这是正常的,但如果我重新连接WiFi,应用程序会崩溃。有什么问题?我想是在BroadReceiver中,在清单中我有android.net.wifi.STATE_更改和android.net.conn.CONNECTIVITY_更改 谢谢 MainActivity.javaJava 连接恢复后是否重新加载WebView?,java,android,webview,broadcastreceiver,Java,Android,Webview,Broadcastreceiver,[已解决][固定代码如下] 这是一个带有网络视图的小应用程序,我想在重新连接到internet时重新加载它。我打开应用程序(连接互联网),它会显示网页(google.com.ar),当我断开WiFi和3G连接时,如果我在网上导航,它会显示错误消息,这是正常的,但如果我重新连接WiFi,应用程序会崩溃。有什么问题?我想是在BroadReceiver中,在清单中我有android.net.wifi.STATE_更改和android.net.conn.CONNECTIVITY_更改 谢谢 MainAc
package com.example.app;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.os.StrictMode;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends ActionBarActivity {
static WebView myWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
StrictMode.enableDefaults();
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myWebView = (WebView) findViewById(R.id.webView);
myWebView.loadUrl("http://google.com.ar");
myWebView.setWebViewClient(new WebViewClient() );
}
}
ConnectionBroadReceiver.java
package com.example.app;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
public class ConnectionBroadReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
ConnectivityManager cm = (ConnectivityManager)
context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
if (netInfo != null && netInfo.isConnectedOrConnecting()) {
MainActivity.myWebView.reload();
} else {
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.app"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="19"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme"
android:screenOrientation="landscape" android:configChanges="orientation|keyboardHidden">
<activity
android:name="com.example.app.MainActivity"
android:label="@string/app_name"
android:screenOrientation="landscape" android:configChanges="orientation|keyboardHidden">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name="com.example.app.ConnectionBroadReceiver">
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
</intent-filter>
</receiver>
</application>
</manifest>
请提供导致应用程序崩溃的异常。您可以从LogCat获得它。您可以提供清单的代码吗?05-08 11:25:46.053:W/System.err(23238):在com.example.fourbyte.ConnectionBroadReceiver.onReceive(ConnectionBroadReceiver.java:20)05-08 11:25:46.053:W/System.err(23238):在android.app.ActivityThread.handleReceiver(ActivityThread.java:2426)