在BottomSheetDialog调用setContentView方法之后,获得BottomSheetBehavior的方法。
( mBottomSheetDialog.setContentView(mContentView); )
第一种:
BottomSheetBehavior mDialogBehavior = BottomSheetBehavior.from((View) mContentView.getParent());
mDialogBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);//展开
第二种:
final FrameLayout frameLayout = (FrameLayout) dialog.findViewById(android.support.design.R.id.design_bottom_sheet);
frameLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
frameLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
BottomSheetBehavior behavior = BottomSheetBehavior.from(frameLayout);
behavior.setPeekHeight(0);//BottomSheetBehavior停留的高度
behavior.setState(BottomSheetBehavior.STATE_EXPANDED);//展开
frameLayout.forceLayout();
}
参考:
http://www.jianshu.com/p/38af0cf77352/comments/1892069