android - 在对话框外发生单击时如何触发事件

Question

我想知道如何解决我遇到的问题。

我有一个在活动中弹出的对话框。对话框没有覆盖整个屏幕，因此活动中的按钮仍然显示。当在对话框边界之外触摸时，我可以轻松关闭对话框dialog.setCanceledOnTouchOutside(true);

但是，如果单击超出对话框的范围，我想做的是触发一个事件（例如，如果有人触摸主 Activity 上的按钮，它应该关闭对话框并同时触发该事件）。

Answer 1

那时dialog.setCanceledOnTouchOutside(true);您只需像这样覆盖onCancel()：

dialog.setOnCancelListener(
        new DialogInterface.OnCancelListener() {
            @Override
            public void onCancel(DialogInterface dialog) {
                //When you touch outside of dialog bounds, 
                //the dialog gets canceled and this method executes.
            }
        }
);

在方法中键入您的代码，onCancel()以便在取消对话框时运行。

Answer 2

这个对我有用，，

        Window window = dialog.getWindow();
        window.setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,
                WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);
        window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);

        dialog.show();

看到这个 http://developer.android.com/reference/android/view/WindowManager.LayoutParams.html#FLAG_NOT_TOUCH_MODAL

Answer 3

DialogFragment您可以使用@silverTech的AlertDialog答案：

override fun onDismiss(dialog: DialogInterface) {
    yourMethod()
    super.onDismiss(dialog)
}

或者

override fun onCancel(dialog: DialogInterface) {
    yourMethod()
    super.onCancel(dialog)
}

Answer 4

当在对话框外发生单击时，您可以使用OnCancelListener触发事件：

dialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
    @Override
    public void onCancel(DialogInterface dialog) {
        yourFunction();
    }
});

Answer 5

如果您在自定义对话框类中，并且希望捕获“点击外部”事件 - 覆盖取消（）。如果你想捕捉“对话框关闭”事件 - 覆盖dismiss()。我建议在 super.dismiss() 之前插入逻辑。科特林示例：

override fun dismiss() {
    Utils.hideKeyboard(mContext, window)
    super.dismiss()
}

Answer 6

它可在com.google.android.material.bottomsheet.BottomSheetDialog

> // We treat the CoordinatorLayout as outside the dialog though it is technically inside
>     coordinator
>         .findViewById(R.id.touch_outside)
>         .setOnClickListener(
>             new View.OnClickListener() {
>               @Override
>               public void onClick(View view) {
>                 if (cancelable && isShowing() && shouldWindowCloseOnTouchOutside()) {
>                   cancel();
>                 }
>               }
>             });

所以你可以在你的 BottomSheetDialog 覆盖 ClickListener

class MyBottomDialogFragment : BottomSheetDialogFragment(){
 override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
        val dialog = object : BottomSheetDialog(activity as Context, theme) {
            private var isDialogCancelable: Boolean = false
            private var isDialogCancelableOnTouchOutside: Boolean = false

            override fun onBackPressed() {
                handleBackPressed(this)
            }

            override fun setContentView(layoutResId: Int) {
                super.setContentView(layoutResId)
                setupTouchOutside()
            }

            override fun setContentView(view: View?) {
                super.setContentView(view)
                setupTouchOutside()
            }

            override fun setContentView(view: View?, params: ViewGroup.LayoutParams?) {
                super.setContentView(view, params)
                setupTouchOutside()
            }

            private fun setupTouchOutside() {
                val coordinator = findViewById<View>(com.google.android.material.R.id.coordinator) as CoordinatorLayout
                // We treat the CoordinatorLayout as outside the dialog though it is technically inside
                coordinator
                    .findViewById<View>(com.google.android.material.R.id.touch_outside)
                    .setOnClickListener {
                        if (isDialogCancelable && isShowing && isDialogCancelableOnTouchOutside) {
                            handleTouchOutside(this)
                        }
                    }
            }


            override fun setCancelable(cancelable: Boolean) {
                super.setCancelable(cancelable)
                isDialogCancelable = cancelable
            }

            override fun setCanceledOnTouchOutside(cancel: Boolean) {
                super.setCanceledOnTouchOutside(cancel)
                isDialogCancelableOnTouchOutside = cancel
            }
        }
        dialog.window?.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE)
        dialog.setCanceledOnTouchOutside(true)
        return dialog
    }

  protected open fun handleBackPressed(dialog: BottomSheetDialog) {
        /* do what you want but after that call dialog.cancel() or dialog.dismiss() */
    }

    protected open fun handleTouchOutside(dialog: BottomSheetDialog) {
        /* do what you want but after that call dialog.cancel() or dialog.dismiss() */        
    }
}

Answer 7

使用后退按钮命令返回上一个屏幕。

在扩展 DialogFragment 的类中使用覆盖方法 onCancel 。. .

@Override
    public void onCancel(@NonNull DialogInterface dialog)
    {
        super.onCancel(dialog);
        getParentFragment().getActivity().onBackPressed();
    }

Answer 8

我发现所有其他答案都非常冗长和复杂，所以我使用了这种方法：

第 1 步： 为要为其生成点击外部事件的元素的外部容器创建一个 ID。

就我而言，它是一个线性布局，我将其 id 设为“outsideContainer”

第 2 步： 为该外部容器设置一个 onTouchListener，它只会充当您内部元素的外部点击事件！

outsideContainer.setOnTouchListener(new View.OnTouchListener() {
                                            @Override
                                            public boolean onTouch(View v, MotionEvent event) {
                                                // perform your intended action for click outside here
                                                Toast.makeText(YourActivity.this, "Clicked outside!", Toast.LENGTH_SHORT).show();
                                                return false;
                                            }
                                        }
    );