Android两种方法使用BottomSheet

Posted 2021-05-29 怪兽N

目录

• • • • 方法1 BottomSheetBehavior
      • 方法2 BottomSheetDialog

方法1 BottomSheetBehavior

#xml 
#app:behavior_hideable="true" 这个不用会闪退
#app:behavior_peekHeight弹出高度

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 
      ...
    <LinearLayout
        android:id="@+id/meter_bottom_menu"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:behavior_hideable="true"
        app:layout_behavior="@string/bottom_sheet_behavior"
        android:orientation="vertical">
	...
</androidx.coordinatorlayout.widget.CoordinatorLayout>

//java
private BottomSheetBehavior<LinearLayout> behavior;
...
        LinearLayout bottomMenu = findViewById(R.id.meter_bottom_menu);
        behavior = BottomSheetBehavior.from(bottomMenu);
        behavior.setState(BottomSheetBehavior.STATE_HIDDEN);
        behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() 		 {
            @Override
            public void onStateChanged(@NonNull View view, int i) {
                
            }

            @Override
            public void onSlide(@NonNull View view, float v) {

            }
        });
...
        if (behavior.getState() == BottomSheetBehavior.STATE_HIDDEN) {
            behavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
        } else {
            behavior.setState(BottomSheetBehavior.STATE_HIDDEN);
        }

方法2 BottomSheetDialog

	val view = View.inflate(this, R.layout.bottom_sheet_dialog1, null)
    ......
    val dialog = BottomSheetDialog(this)
    dialog.setContentView(view)
    val behavior = BottomSheetBehavior.from(view.parent as View)
        
 //when click
 	behavior.state = BottomSheetBehavior.STATE_HALF_EXPANDED                       
    dialog.show()