如何在android中禁用长按WebView

Question

我想禁用webView上的长按,所以我无法选择其中的文本,我使用三种方法来做到这一点,但没有任何工作:

1) android:longClickable="false"

2) webView.setLongClickable(false);

3) webView.setOnLongClickListener(new OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                return true;
            }
        });

所以任何帮助请.

Answer 1

要禁用长按,您需要首先启用长按setLongClickable(true);然后按setOnLongClickListener,然后不返回任何内容:

webview.setLongClickable(true);
webview.setOnLongClickListener(new OnLongClickListener() {
    @Override
    public boolean onLongClick(View v) {
        return true;
        }
    });

如果您只需要禁用文本选择,最好将以下CSS添加到您的网页,它将禁用文本选择:

body {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

在此处查看Mozilla文档.

Answer 2

尝试这个：

   public void SelectText(View v) {
        try {
            KeyEvent shiftPressEvent = new KeyEvent(0, 0, KeyEvent.ACTION_DOWN,
                    KeyEvent.KEYCODE_ESCAPE, 0, 0);
            shiftPressEvent.dispatch(v);
        } catch (Exception e) {
            throw new AssertionError(e);
        }
    }

或者 ：

public boolean onTouchEvent(MotionEvent "ACTION_DOWN") {
    try {
        KeyEvent shiftPressEvent = new KeyEvent(0, 0, KeyEvent.ACTION_DOWN,
                KeyEvent.KEYCODE_SHIFT_LEFT,0,0);
        shiftPressEvent.dispatch(webview);
    } catch (Exception e) {
        throw new AssertionError(e);
    }
    return false;
}