Facebook app type no internet connection message

问题:

How can I show no internet connection message like in facebook app that appears below the tab view.

回答1:

You can design this in your XML file and then set its visibility to invisible like this:

<RelativeLayout     android:id="@+id/relativelayout_connection"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignParentLeft="true"     android:layout_alignParentRight="true"     android:alpha="0.8"     android:background="@android:color/black" >      <TextView         android:id="@+id/textView_noInternetConnection"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignParentTop="true"         android:layout_centerHorizontal="true"         android:layout_centerInParent="true"         android:text="No Internet Connection."         android:textAppearance="?android:attr/textAppearanceMedium"         android:textColor="@android:color/white" />      <ImageView         android:id="@+id/imageView2"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignBottom="@+id/textView_noInternetConnection"         android:layout_alignParentTop="true"         android:layout_toLeftOf="@+id/textView_noInternetConnection"         android:src="@drawable/warrning" /> </RelativeLayout> 

In your code use the broadcast receiver like this:

private BroadcastReceiver mConnReceiver = new BroadcastReceiver() {      @Override     public void onReceive(Context context, Intent intent) {         boolean noConnectivity = intent.getBooleanExtra(                 ConnectivityManager.EXTRA_NO_CONNECTIVITY, false);         /*String reason = intent                 .getStringExtra(ConnectivityManager.EXTRA_REASON);*/         boolean isFailover = intent.getBooleanExtra(                 ConnectivityManager.EXTRA_IS_FAILOVER, false);          @SuppressWarnings("deprecation")         NetworkInfo currentNetworkInfo = (NetworkInfo) intent                 .getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);         // NetworkInfo otherNetworkInfo = (NetworkInfo)         // intent.getParcelableExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO);          if (noConnectivity){                 if(mRelativeLayout != null)             mRelativeLayout.setVisibility(View.VISIBLE);          }         else if (currentNetworkInfo.isConnected()) {             mRelativeLayout.setVisibility(View.GONE);           } else if (isFailover) {             Toast.makeText(getApplicationContext(), "Failover",                     Toast.LENGTH_LONG).show();         } else {             mRelativeLayout.setVisibility(View.GONE);                        }     }        }; 

文章来源: Facebook app type no internet connection message