How to disable back button pressed for webview in android?

Question

How to disable back button pressed for webview in android ?

@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
     if (wv1 != null &&         


        

Answer 1

Simply override the onBackPressed() method.

@Override
public void onBackPressed() { }

Answer 2

There are many ways to make it,

Solution 1, overriding dispatchKeyEvent()

dispatchKeyEvent()(API Level 1, Android 1.0)

Refer to my answer use dispatchKeyEvent to disable back button

@Override
public boolean dispatchKeyEvent(KeyEvent event) {
    // TODO Auto-generated method stub
    if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
        return true;
    }
    return super.dispatchKeyEvent(event);
}

---

Solution 2, overriding onBackPressed()

onBackPressed() (API Level 5, Android 2.0)

Refer to Use onBackPressed() to disable back button

@Override
public void onBackPressed() {
}

---

Solution 3, overriding onKeyDown()

onKeyDown() (API Level 1, Android 1.0)

Refer to Use onKeyDown() to disable back button

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
     if (keyCode == KeyEvent.KEYCODE_BACK) {
     //preventing default implementation previous to android.os.Build.VERSION_CODES.ECLAIR
     return true;
     }
     return super.onKeyDown(keyCode, event);    
}

Answer 3

Please try this

   @Override
public void onBackPressed() {
      if(webview.canGoBack()){
         webview.goBack();
      }
    else{
      super.onBackPressed();
   }
}

Answer 4

If you want to disable back button action when the WebView Visible and enable back button action if the WebView in not Visible try the below code in your Activity

@Override
public void onBackPressed() {
   if(webview.getVisibility()==View.VISIBLE){
      // dont pass back button action
      if(webview.canGoBack()){
         webview.goBack();
      }
      return;
   }else{
      // pass back button action
      super.onBackPressed();
   }
}

Answer 5

Add this below code in java file : 

WebView mwebView;
Button backButton1;

  backButton1 = findViewById(R.id.backButton1);
 mwebView = findViewById(R.id.mwebView);

backButton1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mWebView.destroy();
            }
        });

Answer 6

You have add below code in Activity for disable activity back pressed

@Override
public void onBackPressed() {

}