android Dialog的确定按钮点击后不取消对话框

最新推荐文章于 2022-09-23 16:53:52 发布

最新推荐文章于 2022-09-23 16:53:52 发布 · 214 阅读

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本文介绍了一个用于修改用户昵称的Android对话框实现细节。该对话框使用LayoutInflater加载自定义布局，并通过AlertDialog展示给用户。用户可以在对话框中输入新的昵称，点击确定按钮后会显示输入的昵称，并通过反射机制控制对话框的状态。

private Dialog modifyNickName() { LayoutInflater factory = LayoutInflater.from(this); final View textEntryView = factory.inflate( R.layout.alert_change_nickname, null); return new AlertDialog.Builder(My.this).setIcon( R.drawable.alert_dialog_icon).setTitle( getString(R.string.change_nickname)).setView(textEntryView) .setPositiveButton(R.string.alert_dialog_setting, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { EditText editNickNameText = (EditText) textEntryView .findViewById(R.id.nickname); String nickName = editNickNameText.getText() .toString(); Toast.makeText( My.this, nickName, Toast.LENGTH_SHORT).show(); Field field; try { field = dialog.getClass() .getSuperclass().getDeclaredField( "mShowing"); field.setAccessible(true); if(nickName == null || nickName.equals("")) { field.set(dialog, false); }else { field.set(dialog, true); } dialog.dismiss(); } catch (SecurityException e) { e.printStackTrace(); } catch (NoSuchFieldException e) { e.printStackTrace(); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } } }).setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { Field field; try { field = dialog.getClass() .getSuperclass().getDeclaredField( "mShowing"); field.setAccessible(true); field.set(dialog, true); dialog.dismiss(); } catch (SecurityException e) { e.printStackTrace(); } catch (NoSuchFieldException e) { e.printStackTrace(); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } } }).create(); }