本文介绍了动态设置ViewPager高度的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图把 ViewPager 与不同高度不同的片段。我知道， WRAP_CONTENT 不工作与 ViewPager 所以我想dinamically设置寻呼机的高度。我设置的寻呼机高度在页面监听器：
I am trying to put a ViewPager with different fragments with different heights. I know that wrap_content is not working with ViewPager so I am trying to set pager height dinamically.I am setting the pager height in a page listener:
...
indicator.setOnPageChangeListener(new OnPageChangeListener() {
@Override
public void onPageSelected(int selected) {
final View view = fragments[selected].getView();
if (view != null) {
pager.setLayoutParams(new LayoutParams(
LayoutParams.MATCH_PARENT, view
.getMeasuredHeight()));
}
}
不幸的是它不工作，因为通过 getMeasuredHeight（）在片段返回的值是错误的。我究竟做错了什么？
Unfortunately it is not working because the value returned by getMeasuredHeight() on Fragment is wrong. What am I doing wrong?
推荐答案
这是我的解决方案：
ViewTreeObserver viewTreeObserver = mViewPager.getViewTreeObserver();
viewTreeObserver
.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
int viewPagerWidth = mViewPager.getWidth();
float viewPagerHeight = (float) (viewPagerWidth * FEATURED_IMAGE_RATIO);
layoutParams.width = viewPagerWidth;
layoutParams.height = (int) viewPagerHeight;
mViewPager.setLayoutParams(layoutParams);
mViewPager.getViewTreeObserver()
.removeGlobalOnLayoutListener(this);
}
});
我把它在onResume（）;
I call it in onResume();
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