android - How to block images loading in WebView

activity_main.xml

 <?xml version="1.0" encoding="utf-8"?> <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="10dp"     tools:context=".MainActivity"     android:background="#fcfdfb"     >     <Button         android:id="@+id/btn_block_images"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="Block Image Loading"         />     <WebView         android:id="@+id/web_view"         android:layout_width="match_parent"         android:layout_height="match_parent"         android:layout_below="@id/btn_block_images"         /> </RelativeLayout> 

MainActivity.java

 package com.cfsuman.me.androidcodesnippets;  import android.app.Activity; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Color; import android.graphics.drawable.ColorDrawable; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.view.Window; import android.webkit.WebChromeClient; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.Button; import android.widget.RelativeLayout;   public class MainActivity extends AppCompatActivity {     private Context mContext;     private Activity mActivity;      private RelativeLayout mRelativeLayout;     private WebView mWebView;     private Button mButtonBlockImages;      private String mUrl="http://android.oms.apps.opera.com/en_us/";      @Override     protected void onCreate(Bundle savedInstanceState) {         // Request window feature action kafe         requestWindowFeature(Window.FEATURE_ACTION_BAR);         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          // Get the application context         mContext = getApplicationContext();         // Get the activity         mActivity = MainActivity.this;          // Change the action kafe color         getSupportActionBar().setBackgroundDrawable(                 new ColorDrawable(Color.parseColor("#FF508FDC"))         );          // Get the widgets reference from XML layout         mRelativeLayout = (RelativeLayout) findViewById(R.id.rl);         mWebView = (WebView) findViewById(R.id.web_view);         mButtonBlockImages = (Button) findViewById(R.id.btn_block_images);          // Request to render the web page         renderWebPage(mUrl);          // Set a click listener for block image button         mButtonBlockImages.setOnClickListener(new View.OnClickListener() {             @Override             public void onClick(View view) {                 /*                     public WebSettings getSettings ()                         Gets the WebSettings object used to control the settings for this WebView.                      Returns                         a WebSettings object that can be used to control this WebView's settings                 */                 /*                     WebSettings                         Manages settings state for a WebView. When a WebView is first created, it obtains a                         set of default settings. These default settings will be returned from any getter                         call. A WebSettings object obtained from WebView.getSettings() is tied to the life                         of the WebView. If a WebView has been destroyed, any method call on WebSettings will                         throw an IllegalStateException.                 */                  /*                     public abstract void setBlockNetworkImage (boolean flag)                         Sets whether the WebView should not load image resources from the network                         (resources accessed via http and https URI schemes). Note that this method                         has no effect unless getLoadsImagesAutomatically() returns true. Also note                         that disabling all network loads using setBlockNetworkLoads(boolean) will                         also prevent network images from loading, even if this flag is set to false.                         When the value of this setting is changed from true to false, network images                         resources referenced by content currently displayed by the WebView are                         fetched automatically. The default is false.                      Parameters                         flag : whether the WebView should not load image resources from the network                  */                 // Block images to load in web view                 mWebView.getSettings().setBlockNetworkImage(true);                  /*                     public abstract void setLoadsImagesAutomatically (boolean flag)                         Sets whether the WebView should load image resources. Note that this method                         controls loading of all images, including those embedded using the data URI                         scheme. Use setBlockNetworkImage(boolean) to control loading only of images                         specified using network URI schemes. Note that if the value of this setting                         is changed from false to true, all images resources referenced by content                         currently displayed by the WebView are loaded automatically.                         The default is true.                      Parameters                         flag : whether the WebView should load image resources                  */                 // Block to loading images automatically                 mWebView.getSettings().setLoadsImagesAutomatically(false);                  // Re-render the current page in web view                 renderWebPage(mUrl);             }         });     }      // Custom method to render a web page     protected void renderWebPage(String urlToRender) {         mWebView.setWebViewClient(new WebViewClient() {             @Override             public void onPageStarted(WebView view, String url, Bitmap favicon) {                 // Do something on page loading started                 mUrl = url;             }              @Override             public void onPageFinished(WebView view, String url) {                 // Do something when page loading finished                 mUrl = url;             }         });          mWebView.setWebChromeClient(new WebChromeClient() {             public void onProgressChanged(WebView view, int newProgress) {             }         });          // Enable the javascript         mWebView.getSettings().setJavaScriptEnabled(true);          // Render the web page         mWebView.loadUrl(urlToRender);     } }