android - 如何禁用从/到 EditText/TextView 的复制/粘贴

Question

我正在尝试制作一个不允许用户从中复制内容或将内容粘贴到其中的 Edittext。我阅读了所有答案并执行此操作但这对我不起作用!当我长按文本以选择它时，会显示复制/过去。听听我的代码

video.TextViewSelectable 类:

public class TextViewSelectable extends TextView {

OnSelectionChangedListener onSelectionChangedListener;

public TextViewSelectable(Context context, AttributeSet attrs,
                          int defStyle) {
    super(context, attrs, defStyle);
    disableCopyPast();

}

public TextViewSelectable(Context context, AttributeSet attrs) {
    super(context, attrs);
    disableCopyPast();


}

public TextViewSelectable(Context context) {
    super(context);
    disableCopyPast();

}


@Override
protected void onSelectionChanged(int selStart, int selEnd) {
    if (onSelectionChangedListener == null){
        return;
    }
    String result=this.getText().subSequence(selStart, selEnd).toString();
    if(result.length()>1){
        onSelectionChangedListener.onSelectionChange(result);
    }
}

public void setOnSelectionChangedListener(OnSelectionChangedListener onSelectionChangedListener){
    this.onSelectionChangedListener = onSelectionChangedListener;
}

public void disableCopyPast() {
    this.setCustomSelectionActionModeCallback(new 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;
        }
    });
    this.setTextIsSelectable(true);
}

public interface OnSelectionChangedListener{
    public void onSelectionChange(String result);
}

xml代码:

<video.TextViewSelectable
        android:id="@+id/offLine_subtitleText"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="12"
        android:ellipsize="middle"
        android:gravity="center"
        android:textColor="#FFFFFF"
        android:clickable="true"
        android:textIsSelectable="true"
        android:textColorHighlight="#fffffe60"
        style="@android:style/Holo.ButtonBar"

        android:layout_gravity="center" 
        android:textSize="15sp"/>

用法:

    private  TextViewSelectable subtitleText;
 subtitleText =          (TextViewSelectable)findViewById(R.id.offLine_subtitleText);
  subtitleText.setOnSelectionChangedListener(this);

Answer 1

在布局的编辑文本中提供以下属性

android:longClickable="假"