當(dāng)連接恢復(fù)時(shí)，我想運(yùn)行此任務(wù)，我想調(diào)用NewortchangeReceiver（）構(gòu)造函數(shù)。我在Mainactivity IntentFilter中寫(xiě)了“ android.net.conn.CONNECTIVITY_CHANGE”，因?yàn)椤?android.net.conn.CONNECTIVITY_CHANGE”在android N（7）的androidmanifest.xml中不起作用。我想在互聯(lián)網(wǎng)連接更改時(shí)自動(dòng)重新加載webview。protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); wvDailyDarshan = (WebView) findViewById(R.id.wvDailyDarshan); progressBar = (ProgressBar) findViewById(R.id.progressBar); IntentFilter intentFilter = new IntentFilter("android.net.conn.CONNECTIVITY_CHANGE"); context.registerReceiver(new NetworkChangeReceiver(), intentFilter); Boolean connection = isNetworkConnected(); if (connection == false) { Snackbar.make(this.getWindow().getDecorView().findViewById(android.R.id.content), "Please check your Internet Connection", Snackbar.LENGTH_SHORT).show(); } else if (connection == true) { wvDailyDarshan.getSettings().setJavaScriptEnabled(true); //wvDailyDarshan.loadUrl("http://www.swaminarayanbhagwan.com/daily-darshan/"); wvDailyDarshan.setWebViewClient(new myWebClient()); wvDailyDarshan.getSettings().setJavaScriptEnabled(true); wvDailyDarshan.getSettings().setBuiltInZoomControls(true); wvDailyDarshan.getSettings().setDisplayZoomControls(false); wvDailyDarshan.loadUrl("https://www.google.co.in/"); }}
2 回答
BIG陽(yáng)
TA貢獻(xiàn)1859條經(jīng)驗(yàn) 獲得超6個(gè)贊
我從您的問(wèn)題中得到的是，當(dāng)連接性發(fā)生變化時(shí)，您希望獲得回調(diào)。所以我會(huì)回答。
NetworkChangeReceiver：
public class NetworkChangeReceiver extends BroadcastReceiver {
ConnectionChangeCallback connectionChangeCallback;
@Override
public void onReceive(Context context, Intent intent) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
boolean isConnected = activeNetwork != null
&& activeNetwork.isConnectedOrConnecting();
if (connectionChangeCallback != null) {
connectionChangeCallback.onConnectionChange(isConnected);
}
}
public void setConnectionChangeCallback(ConnectionChangeCallback
connectionChangeCallback) {
this.connectionChangeCallback = connectionChangeCallback;
}
public interface ConnectionChangeCallback {
void onConnectionChange(boolean isConnected);
}
}
現(xiàn)在，您的Activity應(yīng)該在BraodCastReceiver上調(diào)用setConnectionChangeCallback，即NetworkChangeReceiver的對(duì)象，并提供ConnectionChangeCallback的實(shí)現(xiàn)。
可能看起來(lái)像這樣?；顒?dòng)：
public class YourActivity implments NetworkChangeReceiver.ConnectionChangeCallback
{
@Override
protected void onCreate(Bundle savedInstanceState) {
.....
IntentFilter intentFilter = new
IntentFilter("android.net.conn.CONNECTIVITY_CHANGE");
NetworkChangeReceiver networkChangeReceiver = new NetworkChangeReceiver();
registerReceiver(networkChangeReceiver, intentFilter);
networkChangeReceiver.setConnectionChangeCallback(this);
}
@Override
public void onConnectionChange(boolean isConnected) {
if(isConnected){
// will be called when internet is back
}
else{
// will be called when internet is gone.
}
}
}
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