Listview获取项目文本

发布于 2024-10-08 13:39:30 字数 851 浏览 5 评论 0原文

我需要获取所选项目的文本（不是 ID）。我可以在 onListItemClick 下写什么来做到这一点？我得到：

java.lang.ClassCastException: org.eclipse.jdt.internal.debug.core.model.JDIObjectValue cannot be cast to org.eclipse.jdt.debug.core.IJavaArray
at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager.getCompiledExpression(JavaDetailFormattersManager.java:396)
at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager.resolveFormatter(JavaDetailFormattersManager.java:167)
at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager.access$1(JavaDetailFormattersManager.java:152)
at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager$3.run(JavaDetailFormattersManager.java:143)
at org.eclipse.jdt.internal.debug.core.model.JDIThread$ThreadJob.run(JDIThread.java:2751)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

原文

I need to grab selected item TEXT (not id).
What can I write under onListItemClick to do that?
I get:

java.lang.ClassCastException: org.eclipse.jdt.internal.debug.core.model.JDIObjectValue cannot be cast to org.eclipse.jdt.debug.core.IJavaArray
at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager.getCompiledExpression(JavaDetailFormattersManager.java:396)
at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager.resolveFormatter(JavaDetailFormattersManager.java:167)
at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager.access$1(JavaDetailFormattersManager.java:152)
at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager$3.run(JavaDetailFormattersManager.java:143)
at org.eclipse.jdt.internal.debug.core.model.JDIThread$ThreadJob.run(JDIThread.java:2751)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

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绅士风度i 2024-10-15 13:39:30

传递给 onItemClick 的内容之一是被单击的视图：

abstract void onItemClick(AdapterView 父级，View 视图，int 位置，长 id)

将 view 转换为适当的类型并对其调用 getText() ；例如：

final String text = ((TextView)view).getText();

One of the things passed to onItemClick is the view that was clicked:

abstract void onItemClick(AdapterView parent, View view, int position, long id)

Cast view to the appropriate type and call getText() on it; for example:

final String text = ((TextView)view).getText();

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完美的未来在梦里 2024-10-15 13:39:30

有多种方法可以实现此目的，这还取决于您是从简单的 listView 还是从自定义 ListView（使用 custom_list_item.xml）获取文本。

对于简单ListView

lv.setOnItemClickListener(new OnItemClickListener() {

    public void onItemClick(AdapterView<?> parent, View view,
        int position, long id) {
        String text = lv.get(position).tostring().trim();//first method 
        final String text = ((TextView)view).getText();// second method
}});

对于自定义ListView

lv.setOnItemClickListener(new OnItemClickListener() {

    public void onItemClick(AdapterView<?> parent, View view,
        int position, long id) {
        TextView textView = (TextView) view.findViewById(R.id.list_content);
//where list_content is the id of TextView in listview_item.xml

}});

There are multiple ways to achieve this and it also depends on whether you are getting text from simple listView or from Custom ListView(with custom_list_item.xml).

For Simple ListView

lv.setOnItemClickListener(new OnItemClickListener() {

    public void onItemClick(AdapterView<?> parent, View view,
        int position, long id) {
        String text = lv.get(position).tostring().trim();//first method 
        final String text = ((TextView)view).getText();// second method
}});

For Custom ListView

lv.setOnItemClickListener(new OnItemClickListener() {

    public void onItemClick(AdapterView<?> parent, View view,
        int position, long id) {
        TextView textView = (TextView) view.findViewById(R.id.list_content);
//where list_content is the id of TextView in listview_item.xml

}});

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