如何将按钮添加在java中建造一个消息旁边 [英] how to add a button next to a message in java builder

问题描述

还挺新Java编程，我想创建为Android原生应用。
我的问题是，当我从我的SQLite数据库中选择一些东西 - 我想用的EventListener添加旁边的输出按钮。

Kinda new to Java programming, And I am trying to create a native app for android. my problem is, that when I select some stuff from my SQLite DB - I want to add a button with an eventlistener next to the output.

    if(view==btnViewAll)
     {
        Cursor c=db.rawQuery("SELECT * FROM catalogue", null);
        if(c.getCount()==0)
        {
            showMessage("Error", "No records found");
            return;
        }
        StringBuffer buffer=new StringBuffer();
        while(c.moveToNext())
        {
            buffer.append("Product name: "+c.getString(1)+"\n");
            buffer.append("Description: "+c.getString(2)+"\n");
            buffer.append("Price: "+c.getString(3)+"\n");
            buffer.append("Image: "+c.getString(4)+"\n\n");

        }
        showMessage("All Products", buffer.toString());
     }//end of btnViewAll

然后我ShowMessage是这样的 -

and then my ShowMessage is this -

public void showMessage(String title, String message) {
    Builder builder = new Builder(this);
    builder.setCancelable(true);
    builder.setTitle(title);
    builder.setMessage(message);
    builder.show();
}//end of Message!

这都是我的手机上弹出，用在我的数据库记录的列表 - 但我想不通，怎么在里面添加一个按钮，每行

This all pops up on my phone, with a list of the records in my DB - but I can't figure out, how to add a button for each row in there.

帮助是AP preciated！

help is appreciated!

推荐答案

关于你最近的评论，你所需要的显示整个字符串，而不是是创建一个自定义列表，并通过您的数据库填充它。
下面是所需的步骤：

Refering to your recent comment, what you need instead of displaying the full String is to create a custom list and populate it via your DB. Here are the steps required :

1）创建一个对象的用户，用姓名/电话号码

1) Create an Object User, with name/phone number

2）当解析您的数据库，返回一个列表

2) When parsing your DB, return a list

3）创建扩展ArrayAdapter一个CustomAdapter

3) Create a CustomAdapter extending ArrayAdapter

4）修改XML，以便有只有一个ListView

4) Change your xml so that there's only a listView

5）在您的活动，调用的AsyncTask获取您的数据库（如你可能已经这样做），然后使用列表通过适配器来填充的ListView。

5) In your activity, call an AsyncTask to fetch your DB (as you probably already do), then use the List to populate the ListView through the Adapter.

另外提示：创建布局 row.xml 这会在你的适配器，在那里你必须显示你的用户信息所需要的小工具被夸大（即姓名/电话N°）+按钮。而在适配器的getView，膨胀你的 row.xml ，与数据更新的值，并设置行为鼠标。

Further tips : create a layout row.xml that'll be inflated in your Adapter, where you'll have the Widgets needed to display informations about your user (ie name/phone n°) + a button. And in the getView of the adapter, inflate your row.xml, update the values with the data, and set the behaviour for the button there.

下面是一个伟大的教程中，你会发现一切细节： HTTP：// WWW .vogella.com /教程/ AndroidListView / article.html

Here's a great tutorial where you'll find everything in details : http://www.vogella.com/tutorials/AndroidListView/article.html

祝你好运吧！

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