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android widget – How to disable copy/paste from/to EditText

Posted by: admin March 11, 2020 Leave a comment

Questions:

In my application, there is a registration screen, where i do not want the user to be able to copy/paste text into the EditText field. I have set an onLongClickListener on each EditText so that the context menu showing copy/paste/inputmethod and other options does not show up. So the user won’t be able to copy/ paste into the Edit fields.

 OnLongClickListener mOnLongClickListener = new OnLongClickListener() {

        @Override
        public boolean onLongClick(View v) {
            // prevent context menu from being popped up, so that user
            // cannot copy/paste from/into any EditText fields.
            return true;
        }
    };

But the problem arises if the user has enabled a third-party keyboard other than the Android default, which may have a button to copy/paste or which may show the same context menu. So how do i disable copy/paste in that scenario ?

Please let me know if there are other ways to copy/paste as well. (and possibly how to disable them)

Any help would be appreciated.

How to&Answers:

If you are using API level 11 or above then you can stop copy,paste,cut and custom context menus from appearing by.

edittext.setCustomSelectionActionModeCallback(new ActionMode.Callback() {

            public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
                return false;
            }

            public void onDestroyActionMode(ActionMode mode) {                  
            }

            public boolean onCreateActionMode(ActionMode mode, Menu menu) {
                return false;
            }

            public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
                return false;
            }
        });

Returning false from onCreateActionMode(ActionMode, Menu) will prevent the action mode from being started(Select All, Cut, Copy and Paste actions).

Answer:

Best method is to use:

etUsername.setLongClickable(false);

Answer:

You can do this by disabling the long press of the EditText

To implement it, just add the following line in the xml –

android:longClickable="false"

Answer:

I am able to disable copy-and-paste functionality with the following:

textField.setCustomSelectionActionModeCallback(new ActionMode.Callback() {

    public boolean onCreateActionMode(ActionMode actionMode, Menu menu) {
        return false;
    }

    public boolean onPrepareActionMode(ActionMode actionMode, Menu menu) {
        return false;
    }

    public boolean onActionItemClicked(ActionMode actionMode, MenuItem item) {
        return false;
    }

    public void onDestroyActionMode(ActionMode actionMode) {
    }
});

textField.setLongClickable(false);
textField.setTextIsSelectable(false);

Hope it works for you 😉

Answer:

here is a best way to disable cut copy paste of editText work in all version

if (android.os.Build.VERSION.SDK_INT < 11) {
        editText.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {

            @Override
            public void onCreateContextMenu(ContextMenu menu, View v,
                    ContextMenuInfo menuInfo) {
                // TODO Auto-generated method stub
                menu.clear();
            }
        });
    } else {
        editText.setCustomSelectionActionModeCallback(new ActionMode.Callback() {

            public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
                // TODO Auto-generated method stub
                return false;
            }

            public void onDestroyActionMode(ActionMode mode) {
                // TODO Auto-generated method stub

            }

            public boolean onCreateActionMode(ActionMode mode, Menu menu) {
                // TODO Auto-generated method stub
                return false;
            }

            public boolean onActionItemClicked(ActionMode mode,
                    MenuItem item) {
                // TODO Auto-generated method stub
                return false;
            }
        });
    }

Answer:

In addition to the setCustomSelectionActionModeCallback, and disabled long-click solutions, it’s necessary to prevent the PASTE/REPLACE menus from appearing when the text selection handle is clicked, as per the image below:

Text selection handle with paste menu

The solution lies in preventing PASTE/REPLACE menu from appearing in the show() method of the (non-documented) android.widget.Editor class. Before the menu appears, a check is done to if (!canPaste && !canSuggest) return;. The two methods that are used as the basis to set these variables are both in the EditText class:

A more complete answer is available here.

Answer:

Kotlin solution:

fun TextView.disableCopyPaste() {
    isLongClickable = false
    setTextIsSelectable(false)
    customSelectionActionModeCallback = object : ActionMode.Callback {
        override fun onCreateActionMode(mode: ActionMode?, menu: Menu): Boolean {
            return false
        }

        override fun onPrepareActionMode(mode: ActionMode?, menu: Menu): Boolean {
            return false
        }

        override fun onActionItemClicked(mode: ActionMode?, item: MenuItem): Boolean {
            return false
        }

        override fun onDestroyActionMode(mode: ActionMode?) {}
    }
}

Then you can simply call this method on your TextView:

override fun onCreate() {
    priceEditText.disableCopyPaste()
}

Answer:

Using other solutions, API 26 (Oreo) was still showing cursor handle by single tap on text entered, and then menu can be shown. Only combination of solutions can solve my problem.

public class CustomEditText extends EditText {

    public CustomEditText(Context context) {
        super(context);
        init();
    }

    public CustomEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public CustomEditText(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    private void init() {
        this.setCustomSelectionActionModeCallback(new BlockedActionModeCallback());
        this.setLongClickable(false);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_DOWN) {
            this.setInsertionDisabled();
        }
        return super.onTouchEvent(event);
    }

    /**
    * This method sets TextView#Editor#mInsertionControllerEnabled field to false
    * to return false from the Editor#hasInsertionController() method to PREVENT showing
    * of the insertionController from EditText
    * The Editor#hasInsertionController() method is called in  Editor#onTouchUpEvent(MotionEvent event) method.
    */
    private void setInsertionDisabled() {
        try {
            Field editorField = TextView.class.getDeclaredField("mEditor");
            editorField.setAccessible(true);
            Object editorObject = editorField.get(this);

            Class editorClass = Class.forName("android.widget.Editor");
            Field mInsertionControllerEnabledField = editorClass.getDeclaredField("mInsertionControllerEnabled");
            mInsertionControllerEnabledField.setAccessible(true);
            mInsertionControllerEnabledField.set(editorObject, false);
        }
        catch (Exception ignored) {
            // ignore exception here
        }
    }

    @Override
    public boolean isSuggestionsEnabled() {
        return false;
    }

    private class BlockedActionModeCallback implements ActionMode.Callback {
        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
            return false;
        }

        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
            return false;
        }

        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
            return false;
        }

        public void onDestroyActionMode(ActionMode mode) {
        }
    }
}

Answer:

If you don’t wan’t to disable long click because you need to perform some functionality on long click than returning true is a better option to do so.

Your edittext long click will be like this.

edittext.setOnLongClickListener(new View.OnLongClickListener() {
      @Override
      public boolean onLongClick(View v) {
            //  Do Something or Don't
            return true;
      }
});

As per documentation
Returning “True” will indicate that long click have been handled so no need to perform default operations.

I tested this on API level 16, 22 and 25. Its working fine for me. Hope this will help.

Answer:

https://github.com/neopixl/PixlUI provides an EditText with a method

myEditText.disableCopyAndPaste().

And it’s works on the old API

Answer:

Here is a hack to disable “paste” popup. You have to override EditText method:

@Override
public int getSelectionStart() {
    for (StackTraceElement element : Thread.currentThread().getStackTrace()) {
        if (element.getMethodName().equals("canPaste")) {
            return -1;
        }
    }
    return super.getSelectionStart();
}

Similar can be done for the other actions.

Answer:

I’ve tested this solution and this works

    mSubdomainEditText.setLongClickable(false);
    mSubdomainEditText.setCustomSelectionActionModeCallback(new ActionMode.Callback() {

      public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
        return false;
      }

      public void onDestroyActionMode(ActionMode mode) {
      }

      public boolean onCreateActionMode(ActionMode mode, Menu menu) {
        return false;
      }

      public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
        return false;
      }
    });

Answer:

Read the Clipboard, check against the input and the time the input is “typed”. If the Clipboard has the same text and it is too fast, delete the pasted input.

Answer:

@Zain Ali, your answer works on API 11. I just wanted to suggest a way to do in on API 10 as well. Since I had to maintain my project API on that version, I was constantly playing with the functions available in 2.3.3 and got a possibility to do it. I have share the snippet below. I tested the code and it was working for me. I did this snippet on an urgency. Feel free to improve the code if there are any changes that can be done..

// A custom TouchListener is being implemented which will clear out the focus 
// and gain the focus for the EditText, in few milliseconds so the selection 
// will be cleared and hence the copy paste option wil not pop up.
// the respective EditText should be set with this listener 
// tmpEditText.setOnTouchListener(new MyTouchListener(tmpEditText, tmpImm));

public class MyTouchListener implements View.OnTouchListener {

    long click = 0;
    EditText mEtView;
    InputMethodManager imm;

    public MyTouchListener(EditText etView, InputMethodManager im) {
        mEtView = etView;
        imm = im;
    }

    @Override
    public boolean onTouch(View v, MotionEvent event) {

        if (event.getAction() == MotionEvent.ACTION_DOWN) {
            long curr = System.currentTimeMillis();
            if (click !=0 && ( curr - click) < 30) {

                mEtView.setSelected(false);
                new Handler().postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mEtView.setSelected(true);
                        mEtView.requestFocusFromTouch();
                        imm.showSoftInput(mEtView, InputMethodManager.RESULT_SHOWN);
                    }
                },25);

            return true;
            }
            else {
                if (click == 0)
                    click = curr;
                else
                    click = 0;
                new Handler().postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mEtView.requestFocusFromTouch();
                        mEtView.requestFocusFromTouch();
                        imm.showSoftInput(mEtView, InputMethodManager.RESULT_SHOWN);
                    }
                },25);
            return true;
            }

        } else if (event.getAction() == MotionEvent.ACTION_MOVE) {
            mEtView.setSelected(false);
            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    mEtView.setSelected(true);
                    mEtView.requestFocusFromTouch();
                    mEtView.requestFocusFromTouch();
                    imm.showSoftInput(mEtView, InputMethodManager.RESULT_SHOWN);
                }
            },25);
            return true;
        }
        return false;
    }

Answer:

the solution is very simple

public class MainActivity extends AppCompatActivity {

EditText et_0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    et_0 = findViewById(R.id.et_0);

    et_0.setCustomSelectionActionModeCallback(new ActionMode.Callback() {
        @Override
        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
            //to keep the text selection capability available ( selection cursor)
            return true;
        }

        @Override
        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
            //to prevent the menu from appearing
            menu.clear();
            return false;
        }

        @Override
        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
            return false;
        }

        @Override
        public void onDestroyActionMode(ActionMode mode) {

        }
    });
   }
}

——–> preview <———

Answer:

Try Following custome class for prevant copy and paste in Edittext

public class SegoeUiEditText extends AppCompatEditText {
private final Context context;


@Override
public boolean isSuggestionsEnabled() {
    return false;
}
public SegoeUiEditText(Context context) {
    super(context);
    this.context = context;
    init();
}

public SegoeUiEditText(Context context, AttributeSet attrs) {
    super(context, attrs);
    this.context = context;
    init();
}

public SegoeUiEditText(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    this.context = context;
    init();
}


private void setFonts(Context context) {
    this.setTypeface(Typeface.createFromAsset(context.getAssets(), "Fonts/Helvetica-Normal.ttf"));
}

private void init() {

        setTextIsSelectable(false);
        this.setCustomSelectionActionModeCallback(new ActionModeCallbackInterceptor());
        this.setLongClickable(false);

}
@Override
public int getSelectionStart() {

    for (StackTraceElement element : Thread.currentThread().getStackTrace()) {
        if (element.getMethodName().equals("canPaste")) {
            return -1;
        }
    }
    return super.getSelectionStart();
}
/**
 * Prevents the action bar (top horizontal bar with cut, copy, paste, etc.) from appearing
 * by intercepting the callback that would cause it to be created, and returning false.
 */
private class ActionModeCallbackInterceptor implements ActionMode.Callback, android.view.ActionMode.Callback {
    private final String TAG = SegoeUiEditText.class.getSimpleName();

    public boolean onCreateActionMode(ActionMode mode, Menu menu) { return false; }
    public boolean onPrepareActionMode(ActionMode mode, Menu menu) { return false; }
    public boolean onActionItemClicked(ActionMode mode, MenuItem item) { return false; }
    public void onDestroyActionMode(ActionMode mode) {}

    @Override
    public boolean onCreateActionMode(android.view.ActionMode mode, Menu menu) {
        return false;
    }

    @Override
    public boolean onPrepareActionMode(android.view.ActionMode mode, Menu menu) {
        menu.clear();
        return false;
    }

    @Override
    public boolean onActionItemClicked(android.view.ActionMode mode, MenuItem item) {
        return false;
    }

    @Override
    public void onDestroyActionMode(android.view.ActionMode mode) {

    }
}

}

Answer:

For smartphone with clipboard, is possible prevent like this.

editText.setFilters(new InputFilter[]{new InputFilter() {
        @Override
        public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
            if (source.length() > 1) {
                return "";
            }  return null;
        }
    }});

Answer:

Similar to GnrlKnowledge, you can clear the Clipboard

http://developer.android.com/reference/android/text/ClipboardManager.html

If you want, preserve the text in the Clipboard, and on onDestroy, you can set it again.

Answer:

I found that when you create an input filter to avoid entry of unwanted characters, pasting such characters into the edit text is having no effect. So this sort of solves my problem as well.

Answer:

You may try android:focusableInTouchMode=”false”.

Answer:

Solution that worked for me was to create custom Edittext and override following method:

public class MyEditText extends EditText {

private int mPreviousCursorPosition;

@Override
protected void onSelectionChanged(int selStart, int selEnd) {
    CharSequence text = getText();
    if (text != null) {
        if (selStart != selEnd) {
            setSelection(mPreviousCursorPosition, mPreviousCursorPosition);
            return;
        }
    }
    mPreviousCursorPosition = selStart;
    super.onSelectionChanged(selStart, selEnd);
}

}

Answer:

Try to use.

myEditext.setCursorVisible(false);

       myEditext.setCustomSelectionActionModeCallback(new ActionMode.Callback() {

        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
            // TODO Auto-generated method stub
            return false;
        }

        public void onDestroyActionMode(ActionMode mode) {
            // TODO Auto-generated method stub

        }

        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
            // TODO Auto-generated method stub
            return false;
        }

        public boolean onActionItemClicked(ActionMode mode,
                MenuItem item) {
            // TODO Auto-generated method stub
            return false;
        }
    });

Answer:

Who is looking for a solution in Kotlin use the below class as a custom widget and use it in the xml.

class SecureEditText : TextInputEditText {

/** This is a replacement method for the base TextView class' method of the same name. This method
 * is used in hidden class android.widget.Editor to determine whether the PASTE/REPLACE popup
 * appears when triggered from the text insertion handle. Returning false forces this window
 * to never appear.
 * @return false
 */
override fun isSuggestionsEnabled(): Boolean {
    return false
}

override fun getSelectionStart(): Int {
    for (element in Thread.currentThread().stackTrace) {
        if (element.methodName == "canPaste") {
            return -1
        }
    }
    return super.getSelectionStart()
}

public override fun onSelectionChanged(start: Int, end: Int) {

    val text = text
    if (text != null) {
        if (start != text.length || end != text.length) {
            setSelection(text.length, text.length)
            return
        }
    }

    super.onSelectionChanged(start, end)
}

companion object {
    private val EDITTEXT_ATTRIBUTE_COPY_AND_PASTE = "isCopyPasteDisabled"
    private val PACKAGE_NAME = "http://schemas.android.com/apk/res-auto"
}

constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {
    disableCopyAndPaste(context, attrs)
}

/**
 * Disable Copy and Paste functionality on EditText
 *
 * @param context Context object
 * @param attrs   AttributeSet Object
 */
private fun disableCopyAndPaste(context: Context, attrs: AttributeSet) {
    val isDisableCopyAndPaste = attrs.getAttributeBooleanValue(
        PACKAGE_NAME,
        EDITTEXT_ATTRIBUTE_COPY_AND_PASTE, true
    )
    if (isDisableCopyAndPaste && !isInEditMode()) {
        val inputMethodManager =
            context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
        this.setLongClickable(false)
        this.setOnTouchListener(BlockContextMenuTouchListener(inputMethodManager))
    }
}

/**
 * Perform Focus Enabling Task to the widget with the help of handler object
 * with some delay
 * @param inputMethodManager is used to show the key board
 */
private fun performHandlerAction(inputMethodManager: InputMethodManager) {
    val postDelayedIntervalTime: Long = 25
    Handler().postDelayed(Runnable {
        [email protected](true)
        [email protected]()
        inputMethodManager.showSoftInput(
            [email protected],
            InputMethodManager.RESULT_SHOWN
        )
    }, postDelayedIntervalTime)
}

/**
 * Class to Block Context Menu on double Tap
 * A custom TouchListener is being implemented which will clear out the focus
 * and gain the focus for the EditText, in few milliseconds so the selection
 * will be cleared and hence the copy paste option wil not pop up.
 * the respective EditText should be set with this listener
 *
 * @param inputMethodManager is used to show the key board
 */
private inner class BlockContextMenuTouchListener internal constructor(private val inputMethodManager: InputMethodManager) :
    View.OnTouchListener {
    private var lastTapTime: Long = 0
    val TIME_INTERVAL_BETWEEN_DOUBLE_TAP = 30
    override fun onTouch(v: View, event: MotionEvent): Boolean {
        if (event.getAction() === MotionEvent.ACTION_DOWN) {
            val currentTapTime = System.currentTimeMillis()
            if (lastTapTime != 0L && currentTapTime - lastTapTime < TIME_INTERVAL_BETWEEN_DOUBLE_TAP) {
                [email protected](false)
                performHandlerAction(inputMethodManager)
                return true
            } else {
                if (lastTapTime == 0L) {
                    lastTapTime = currentTapTime
                } else {
                    lastTapTime = 0
                }
                performHandlerAction(inputMethodManager)
                return true
            }
        } else if (event.getAction() === MotionEvent.ACTION_MOVE) {
            [email protected](false)
            performHandlerAction(inputMethodManager)
        }
        return false
    }
}

}