获取View高度的几种方式

最新推荐文章于 2021-05-25 17:26:22 发布

转载最新推荐文章于 2021-05-25 17:26:22 发布 · 501 阅读

本文介绍如何使用ViewTreeObserver实现获取屏幕高度，并根据获取到的高度调整滚动视图的位置，确保用户界面的流畅性和用户体验。

http://www.jb51.net/article/64727.htm

http://www.cnblogs.com/taoweiji/p/3400891.html

ViewTreeObserver vto = tv.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
public void onGlobalLayout() {

heigh = appDescription.getHeight();

tv.getViewTreeObserver().removeGlobalOnLayoutListener(this);
}
});

int w = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
int h = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
mFlowDetailByPackages.measure(w, h);
vto = mDetailed.getViewTreeObserver();
heightTotal = mFlowDetailByPackages.getMeasuredHeight();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

@Override
public void onGlobalLayout() {
// TODO Auto-generated method stub
int heightView = mDetailed.getHeight();
mDetailed.getViewTreeObserver().removeGlobalOnLayoutListener(this);
if(heightTotal - heightView >0){
mRefreshListView.getRefreshableView().scrollTo(0, heightTotal-heightView);
}
}
});