解决数据不足一屏 BottomSheetDialog 无法全屏展示

最新推荐文章于 2023-11-07 16:53:38 发布

Sys_Android

最新推荐文章于 2023-11-07 16:53:38 发布

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分类专栏： android开发

本文链接：https://blog.youkuaiyun.com/bb199191/article/details/80928437

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本文介绍了一种解决BottomSheetDialog在内容不满屏时无法完全显示的问题的方法。通过复写BottomSheetDialog并调整布局参数，使得对话框能够始终全屏展示。

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最近项目有遇到 BottomSheetDialog 展示内容未满屏无法显示的情况

首先查看到BottomSheetDialog 设置了全屏

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setLayout(
            ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
}

通过

@Override
public void setContentView(View view, ViewGroup.LayoutParams params) {
    super.setContentView(wrapInBottomSheet(0, view, params));
}

进入

wrapInBottomSheet

private View wrapInBottomSheet(int layoutResId, View view, ViewGroup.LayoutParams params) {
    final CoordinatorLayout coordinator = (CoordinatorLayout) View.inflate(getContext(),
            R.layout.design_bottom_sheet_dialog, null);
    if (layoutResId != 0 && view == null) {
        view = getLayoutInflater().inflate(layoutResId, coordinator, false);
    }
    FrameLayout bottomSheet = (FrameLayout) coordinator.findViewById(R.id.design_bottom_sheet);
    mBehavior = BottomSheetBehavior.from(bottomSheet);
    mBehavior.setBottomSheetCallback(mBottomSheetCallback);
    mBehavior.setHideable(mCancelable);
    if (params == null) {
        bottomSheet.addView(view);
    } else {
        bottomSheet.addView(view, params);
    }

发现自己所写的view是添加到

FrameLayout bottomSheet = (FrameLayout) coordinator.findViewById(R.id.design_bottom_sheet);

<android.support.design.widget.CoordinatorLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    <View
            android:id="@+id/touch_outside"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:soundEffectsEnabled="false"/>

    <FrameLayout
            android:id="@+id/design_bottom_sheet"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal|top"
            android:clickable="true"
            app:layout_behavior="@string/bottom_sheet_behavior"
            style="?attr/bottomSheetStyle"/>

</android.support.design.widget.CoordinatorLayout>

<FrameLayout
        android:id="@+id/design_bottom_sheet"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"

设置的高度是自适应

这边通过复写

BottomSheetDialog

override fun show() {
    super.show()
    window.apply {
        var mContent = decorView.findViewById(R.id.design_bottom_sheet)
        var orginLayoutParams = mContent.layoutParams
        orginLayoutParams.height=ViewGroup.LayoutParams.MATCH_PARENT
        mContent.layoutParams=orginLayoutParams
        val mDialogBehavior = BottomSheetBehavior.from(mContent)
        mDialogBehavior.setState(BottomSheetBehavior.STATE_EXPANDED)
    }
}