如何在RelativeLayout的触摸事件传送到视图下面？ [英] How to transfer touch events to the view beneath in a RelativeLayout?

问题描述

我有一个滚动型另一个视图顶部（以按钮）。在滚动型走的是整个屏幕，并模糊是它下面的视图。

I have a ScrollView on top of another view(with Buttons). The ScrollView is taking the whole screen and is obscuring the view that is beneath it.

在我的应用程序某些时候，我所需要的滚动型被禁用（但仍然可见），所有的触摸事件转移到按钮这是滚动型之下。我该怎么办呢？像按钮的一些看法自动这样做时禁用但滚动型不这样做。

At some point in my app I need the ScrollView to be disabled (but still visible) and transfer all the touch events to the Buttons that are beneath the ScrollView. How can I do that? Some views like Buttons are automatically doing that when disabled but a ScrollView is not doing that.

推荐答案

尝试实现自己的滚动型里面有一个标志，指示状态（禁用/启用）和还覆盖了 onTouchEvent 和 dispatchTouchEvent 来让触摸事件获得通过滚动型。下面是一个例子：

Try to implement your own ScrollView which has a flag to indicate the status(disabled/enabled) and also overrides the onTouchEvent and dispatchTouchEvent to let the touch events get pass the ScrollView. Here is an example:

public class DisabledScrollView extends ScrollView {

    private boolean mIsDisable = false;

    // if status is true, disable the ScrollView
    public void setDisableStatus(boolean status) {
        mIsDisable = status;
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        // no more tocuh events for this ScrollView
        if (mIsDisable) {
            return false;
        }       
        return super.onTouchEvent(ev);
    }

    public boolean dispatchTouchEvent(MotionEvent ev) {
        // although the ScrollView doesn't get touch events , its children will get them so intercept them.
        if (mIsDisable) {
            return false;
        }
        return super.dispatchTouchEvent(ev);
    }

}

然后，所有你需要做的是改变标志的值。看看它是否工作。

Then all you have to do is change the value of that flag. See if it works.

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