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BottomSheetDialog的使用

2019-11-09 17:10:26
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BottomSheetDialog的简单使用

BottomSheetDialog bsd = new MyBottomSheetDialog(this);bsd.setContentView(R.layout.items);//布局为任意布局bsd.show();

比较坑的地方是:

1.向下滑动后,再show不出来

当我们设置bottomSheetDialog点击后不new,而是直接show的话,然而当我们会bottomSheetDialog 展开后,我们将BottomSheetDialog划下隐藏后, 再点击展示BottomSheetDialog后,会发现页面只是变暗,BottomsheetDialog未展开,这是由于之前我们划下收缩隐藏BottomSheetDialog后,bottomSheetDialogBehavior的状态为隐藏,再次show之后,系统未恢复bottomSheetDialogBehavior的状态,还是隐藏,所以再次点击后页面只是变暗。(未能解决,暂时只能每次都new)

2.解决BottomSheetDialog状态栏变黑的问题

继承BottomSheetDialog并重写其PRotected void onCreate(Bundle savedInstanceState)方法

Activity mActivity; public MyBottomSheetDialog(@NonNull Context context) { super(context); mActivity = (Activity) context; }protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); int screenHeight = getScreenHeight(mActivity); int statusBarHeight = getStatusBarHeight(getContext()); int dialogHeight = screenHeight - statusBarHeight; getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, dialogHeight == 0 ? ViewGroup.LayoutParams.MATCH_PARENT : dialogHeight); } private static int getScreenHeight(Activity activity) { DisplayMetrics displaymetrics = new DisplayMetrics(); activity.getWindowManager().getDefaultDisplay().getMetrics(displaymetrics); return displaymetrics.heightPixels; } private static int getStatusBarHeight(Context context) { int statusBarHeight = 0; Resources res = context.getResources(); int resourceId = res.getIdentifier("status_bar_height", "dimen", "android"); if (resourceId > 0) { statusBarHeight = res.getDimensionPixelSize(resourceId); } return statusBarHeight; }
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