如何禁用从/到EditText的复制/粘贴

在我的应用程序中，有一个注册屏幕，我不希望用户将文本复制/粘贴到该EditText字段中。我onLongClickListener在每个EditText菜单上都设置了一个，以便不会显示显示复制/粘贴/输入法和其他选项的上下文菜单。因此，用户将无法复制/粘贴到“编辑”字段中。

 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;
        }
    };

但是，如果用户启用了除Android默认设置以外的第三方键盘，则可能会出现问题，该第三方键盘可能具有要复制/粘贴的按钮，或者可能显示相同的上下文菜单。那么在那种情况下我如何禁用复制/粘贴呢？

请让我知道是否还有其他复制/粘贴方式。（以及可能如何禁用它们）

任何帮助，将不胜感激。

如果您使用的是API级别11或更高级别，则可以阻止复制，粘贴，剪切和自定义上下文菜单的出现。

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;
            }
        });

从onCreateActionMode（ActionMode，Menu）返回false将阻止启动操作模式（全选，剪切，复制和粘贴操作）。

最好的方法是使用：

etUsername.setLongClickable(false);

您可以通过禁用长按EditText来做到这一点

要实现它，只需在xml中添加以下行-

android:longClickable="false"

我可以通过以下方式禁用复制和粘贴功能：

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);

希望对你有帮助 ;-）

这是在所有版本中禁用editText工作的剪切副本粘贴的最佳方法

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;
            }
        });
    }

除了setCustomSelectionActionModeCallback和禁用的长按解决方案之外，还必须防止单击文本选择手柄时出现PASTE / REPLACE菜单，如下图所示：

解决方案在于防止PASTE / REPLACE菜单出现在show()（未记录）android.widget.Editor类的方法中。在菜单出现之前，请对进行检查if (!canPaste && !canSuggest) return;。用作设置这些变量的基础的两种方法都在EditText该类中：

• isSuggestionsEnabled()是公开的，因此可能会被覆盖。
• canPaste() 不是，因此必须被隐藏 在派生类中引入相同名称的函数。

此处提供了更完整的答案。

Kotlin解决方案：

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?) {}
    }
}

然后，您可以在您的上简单地调用此方法TextView：

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

使用其他解决方案，API 26（Oreo）仍然可以通过单击输入的文本来显示光标句柄，然后可以显示菜单。只有解决方案的组合才能解决我的问题。

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) {
        }
    }
}

如果您不想禁用长按，因为您需要对长按执行某些功能，而不是返回true是更好的选择。

您的edittext长按将是这样。

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

根据文档， 返回“ True”将表示已处理长按，因此无需执行默认操作。

我在API级别16、22和25上对此进行了测试。它对我来说很好用。希望这会有所帮助。

https://github.com/neopixl/PixlUI提供了EditText带有方法

myEditText.disableCopyAndPaste()。

它适用于旧的API

这是一种禁用“粘贴”弹出窗口的技巧。您必须重写EditText方法：

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

其他动作也可以做类似的事情。

我已经测试了此解决方案，并且可以正常工作

    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;
      }
    });

阅读剪贴板，对照输入和“输入”时间进行检查。如果剪贴板具有相同的文本并且速度太快，请删除粘贴的输入。

@Zain Ali，您的答案适用于API11。我只是想提出一种也适用于API 10的方法。由于我必须在该版本上维护我的项目API，因此我一直在使用2.3.3中提供的功能，并且有可能做到这一点。我已经分享了以下代码段。我测试了代码，它对我有用。我紧急完成了此代码段。如果可以进行任何更改，请随时改进代码。

// 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;
    }

解决方案很简单

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) {

        }
    });
   }
}

-------->预览<---------

尝试按照以下自定义类进行先行复制和粘贴 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) {

    }
}

}

对于带剪贴板的智能手机，可以这样防止。

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;
        }
    }});

与GnrlKnowledge类似，您可以清除剪贴板

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

如果需要，可以将文本保留在剪贴板中，然后在onDestroy上再次进行设置。

我发现在创建输入过滤器以避免输入不需要的字符时，将这些字符粘贴到编辑文本中没有任何效果。因此，这也解决了我的问题。

您可以尝试android：focusableInTouchMode =“ false”。

对我有用的解决方案是创建自定义Edittext并覆盖以下方法：

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);
}

}

尝试使用。

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;
        }
    });

谁在Kotlin中寻找解决方案，请使用以下类作为自定义窗口小部件，并在xml中使用它。

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 {
        this@SecureEditText.setSelected(true)
        this@SecureEditText.requestFocusFromTouch()
        inputMethodManager.showSoftInput(
            this@SecureEditText,
            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) {
                this@SecureEditText.setSelected(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) {
            this@SecureEditText.setSelected(false)
            performHandlerAction(inputMethodManager)
        }
        return false
    }
}

}

我用Kotlin语言添加了扩展功能：

fun EditText.disableTextSelection() {
    this.setCustomSelectionActionModeCallback(object : android.view.ActionMode.Callback {
        override fun onActionItemClicked(mode: android.view.ActionMode?, item: MenuItem?): Boolean {
            return false
        }
        override fun onCreateActionMode(mode: android.view.ActionMode?, menu: Menu?): Boolean {
            return false
        }
        override fun onPrepareActionMode(mode: android.view.ActionMode?, menu: Menu?): Boolean {
            return false
        }
        override fun onDestroyActionMode(mode: android.view.ActionMode?) {
        }
    })
}

您可以像这样使用它：

edit_text.disableTextSelection()

还添加了以下行在您的xml中：

                android:longClickable="false"
                android:textIsSelectable="false"