展会信息港展会大全

Android 覆盖AlertDialog里的按钮事件并显示Toast
来源:互联网   发布日期:2015-10-03 11:18:40   浏览:2106次  

导读:网上找到的多数是:控制其不消失,和消失。// /** 假设对话框已经关闭,欺骗系统,以保持输入窗口**/ try { ......

网上找到的多数是:

控制其不消失,和消失。

///** 假设对话框已经关闭,欺骗系统,以保持输入窗口**/

try {

Field field = this.getClass().getSuperclass().getDeclaredField( "mShowing" );

field.setAccessible( true );

field.set(this, bSucceed);

} catch (Exception e){

e.printStackTrace();

}

还可以

用OnClicklistener覆盖DialogInterface.OnClicklistener

//可以使用AlerDialog.Builder,并显示一个Toast。//只要你覆盖按钮的OnClickListener,就可以触发Toast,显示在对话框上。//并决定对话框是否消失 public void showToastOnDialog(final Context context) {

AlertDialog.Builder builder = new AlertDialog.Builder(context);

builder.setTitle("Dialog title");

builder.setMessage("Dialog message");

builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

// Do nothing, you will be overriding this anyway

}

});

builder.setNegativeButton(android.R.string.cancel,

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

// You can implement code here, because you wont be

// overriding this

}

});

final AlertDialog dialog = builder.create();

// Make sure you show the dialog first before overriding the

// OnClickListener

dialog.show();

// Notice that I`m not using DialogInterface.OnClicklistener but the

// View.OnClickListener

dialog.getButton(Dialog.BUTTON_POSITIVE).setOnClickListener(

new View.OnClickListener() {

@Override

public void onClick(View v) {

Toast toast = Toast.makeText(context,

"I`m a toast on top of a dialog.",

Toast.LENGTH_LONG);

toast.show();

// Because you are overriding the OnClicklistener, the

// dialog will not auto dismiss after clicking

////otherwise //dialog.dismiss();

dialog.dismiss();

}

});

}

赞助本站

人工智能实验室

相关热词: AlertDialog 按钮事件

AiLab云推荐
展开

热门栏目HotCates

Copyright © 2010-2024 AiLab Team. 人工智能实验室 版权所有    关于我们 | 联系我们 | 广告服务 | 公司动态 | 免责声明 | 隐私条款 | 工作机会 | 展会港