問題描述

我在活動中使用 showDialog 和 dismissDialog 來顯示和銷毀我的對話框.還有沒有辦法在當前顯示的對話框上發出點擊命令，而不保留引用對話框的變量?

I use showDialog and dismissDialog in activity to display and destroy my dialog. Is there also a way to issue a click command on the currently displayed dialog without keeping a variable referencing the dialog?

例如，我想通過代碼按下對話框的確定"/肯定按鈕.

For example, I want to press the 'Ok' / positive button of the dialog via code.

推薦答案

我沒有測試過這段代碼，但它應該可以工作:

I haven't tested this code but it should work:

AlertDialog dialog = ...
dialog.getButton(DialogInterface.BUTTON_POSITIVE).performClick();

或者，如果您不想保留對對話框的引用但可以控制其設置，則可以將點擊代碼提取到另一個方法中:

Alternatively, if you don't want to keep a reference to the dialog but are in control of its setup, you could extract the on click code into another method:

AlertDialog.Builder builder = ...
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
  public void onClick(DialogInterface dialog, int which) {
    onPositiveButtonClicked(); 
  }
});

并在您的 Activity 中實現 onPositiveButtonClicked().您可以調用 onPositiveButtonClicked() 和 dismissDialog(id)，而不是以編程方式單擊 OK 按鈕.如果您需要處理多個對話框，請讓 onPositiveButtonClicked 采用 id 參數.

and implement onPositiveButtonClicked() in your Activity. Instead of programatically clicking the OK button you can call onPositiveButtonClicked() and dismissDialog(id). If you need to handle multiple dialogs, have onPositiveButtonClicked take an id parameter.

這篇關于如何通過代碼在 AlertDialog 上單擊“確定"?的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！