ListView中有一个动态的意图是改变一个TextView和web视图在每次调用 [英] ListView with a dynamic intents that change a TextView and WebView on each call

问题描述

活动正在发送putExtra（）

@Override
protected void onListItemClick(ListView l, View v, int position, long id)
{
    super.onListItemClick(l, v, position, id);
    final Intent intent = new Intent();
    // Set up different intents based on the item clicked: 
    switch (position)
    {
        case ACTIVITY_0:
            intent.putExtra("Value1", "Display this text!");
            intent.setClass(this, com.a.someclass.class);
}
    startActivityForResult(intent, position);
}

活动接收putExtra（）

@Override
protected void onCreate(Bundle bundle) {
    // TODO Auto-generated method stub
    super.onCreate(bundle);
    setContentView(R.layout.information);
    Bundle extras = getIntent().getExtras();
    if (extras == null) {
        return;
    }
    String value1 = extras.getString("Value1");

    if (value1 != null) {
        informationTitle = (TextView)findViewById(R.id.informationTitle);
        informationText = (WebView)findViewById(R.id.informationText);
        informationTitle.setText(value1);
    }

原始消息：

我一直在四处寻找上一个很好的教程，我已经发布我的code网上，使人们可以看到它，但还没有找到我所需要的帮助。

i have been searching everywhere for a good tutorial on this, i have posted my code online so people can look at it but have not found the help i needed.

我是新来这个，什么我基本上是试图做的就是有一个项目列表它们都链接到一个类，它有一个动态的TextView将用于标题和web视图的内容，所以基本上，当一个项目被点击的名单上，将开辟新的活动/意图，它也将传递参数改变TextView的和的WebView相应。

I am new to this and what i am basically trying to do is just have a list of items which are all linked to one class that has a dynamic TextView that will be used for the title and a WebView for content, And so basically when a item is clicked on the list it will open up the new activity/intent and it will also pass arguments to change the TextView and WebView accordingly.

我知道如何做一个新的类列表中的每个项目以打开一个新的活动，但我pretty的肯定有一个更简单的方法，我可以重复使用一个类，只是不断变化的TextView的和web视图。我之所以说这是因为我有15个项目在我的名单，但将扩大加班，所以我不希望被做50-60不同类别的开拓每一个新项目。

I know how to open a new activity by making a new class for each item on the list but i am pretty sure there is an easier way where i can reuse one class and just keep changing the TextView and WebView. The reason i say this is because i have 15 items on my list, but that will expand overtime so i dont want to be making 50-60 different classes to open up each new item.

如果一些可以点我在正确的教程或给我一些有识之士就在​​这里，我真的很AP preciate了！

If some could point me to the right tutorial or give me some insight on here i will really really appreciate it!

感谢您

推荐答案

要完成的，而不是使用不同的意图每个列表项，调用，你会，同样活动用相同的意图，但通过演员与它一起。

To accomplish that, you would, instead of using a different Intent for each list item, call the same Activity with the same Intent, but pass extras along with it.

让我们说，例如，你想传递一个不同的字符串根据点击该列表项。你会想

Let's say, for instance, that you want to pass a different String depending on which list item is clicked. You would want to

myIntent.putExtra(String key, String value);
startActivity(myIntent);

在活动，你开始用这种意图将能够抓住这些演员在其的onCreate（）用

The Activity that you start with this Intent will then be able to grab these extras in its onCreate() using

Bundle extras = getIntent().getExtras();

和访问你放在意图用概括的方法的此处。这样，您就可以使用一个活动所有列表项，但有活动基础上，多余的值显示不同的信息

and access the extras you put in the Intent using the methods outlined here. This way you can use a single Activity for all list items but have the Activity display different information based on the extra values.

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