获取RelativeLayout的尺寸 [英] Get RelativeLayout dimensions

问题描述

我如何得到一定的布局类似的LinearLayout或RelativeLayout的与layout_width的测量和layout_height设置为wrap_content？使用此方法

How do I get the measurements of a certain layout like linearlayout or relativelayout with its layout_width and layout_height set to wrap_content? using this method

 layout.measure(MeasureSpec.makeMeasureSpec(0,
            MeasureSpec.UNSPECIFIED),
            MeasureSpec.makeMeasureSpec(0,
                    MeasureSpec.UNSPECIFIED));

 layout.layout(0, 0,
            layout.getMeasuredWidth(),
            layout.getMeasuredHeight());

返回null。我想出来的RelativeLayout的创建位图图像，有点像一个屏幕截图。

returns null. I'm trying to create a bitmap image out of the relativelayout, kinda like a screenshot.

推荐答案

不要去做就onCreate（）方法。试试这个：

Don't do it on the onCreate() method. Try this:

@Override
public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    if (hasFocus == true) {
        LinearLayout myLinearLayout = (LinearLayout) findViewById(R.id.myLinearLayout);
        int layoutWidth = myLinearLayout.getWidth();
        int layoutHeight = myLinearLayout.getHeight();
    }
}

此方法的onCreate（）中，当尺寸是已知的后称为

This method is called after onCreate(), when the sizes are already known.

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