如何完全防止 TextView 滚动? [英] How do I completely prevent a TextView from scrolling?

问题描述

我有一个包含大量文本的 TextView.这个 TextView 设置了 maxLines，所以它只显示前 8 行左右.我还有一个阅读更多"按钮，所以我自己处理扩展 TextView.

I have a TextView with a lot of text. This TextView has maxLines set, so it only shows the first 8 or so lines. I also have a "Read More" button so I handle expanding the TextView on my own.

我的问题是有时 TextView 会滚动一点(一次只有半行)，即使我从未指定任何滚动条.这个问题变得更糟了，因为TextView在一个ListView里面，所以当用户滚动主ListView时，TextView有时会滚动一点，像这样:

My problem is that sometimes the TextView scrolls a little (just half a line at a time), even though I never specified any scroll bars. This issue is made worse because the TextView is inside a ListView, so when the user scrolls the main ListView, the TextView sometimes scrolls a little, like this:

如何防止 TextView 滚动?

How do I prevent the TextView from scrolling?

推荐答案

我也有同样的问题，我的解决方法是创建一个 NoScrollTextView extends TextView 这样

I have the same problem,My solution is create a NoScrollTextView extends TextView like this

 public class NoScrollTextView extends TextView {
    public NoScrollTextView(Context context) {
        super(context);
    }

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

    public NoScrollTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    public NoScrollTextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }

    @Override
    public void scrollTo(int x, int y) {
        //do nothing
    }
}

设置滚动什么都不做

在 Kotlin 中:

In Kotlin:

class NonScrollingTextView : TextView {
    constructor(context: Context) : super(context) {}
    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {}
    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {}
    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int, defStyleRes: Int) : super(context, attrs, defStyleAttr, defStyleRes) {
    }

    override fun scrollTo(x: Int, y: Int) {
        //do nothing
    }
}

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