我无法使用波纹管代码访问项目的内容。为什么?我究竟做错了什么?Android从自定义列表视图中访问textView项目
- 我为ListView
- 的物品的自定义布局的活动是一个简单的,不ListActivity
- 在ItemLayout我有3个TextViews也许图像。
- 项目点击我需要检索在这些TextView中找到的值。
那么可能是我的问题? 下面是代码:
listView1.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> arg0, View v, int position, long id)
{
AlertDialog.Builder adb = new AlertDialog.Builder(
MainActivity.this);
adb.setTitle("ListView OnClick");
RelativeLayout rl = (RelativeLayout) v.getParent();
TextView titlu = (TextView) rl.findViewById(R.id.txtTitle);
rl.findViewById(R.id.txtLocalitate);
adb.setMessage("Selected = "+ titlu.getText().toString());
adb.setPositiveButton("Ok", null);
adb.show();
}
});
如果我做
RelativeLayout rl = (RelativeLayout) arg0.getParent();
然后我没有收到上点击一个错误,但在AlertDialog显示的值只显示第一个项目的价值。所以这不是要走的路... 如果我离开代码如上,onItemClick我收到“强制关闭”错误。错误日志可波纹管:
07-30 18:36:09.903: W/dalvikvm(1304): threadid=1: thread exiting with uncaught exception (group=0x40015560)
07-30 18:36:09.914: E/AndroidRuntime(1304): FATAL EXCEPTION: main
07-30 18:36:09.914: E/AndroidRuntime(1304): java.lang.ClassCastException: android.widget.ListView
07-30 18:36:09.914: E/AndroidRuntime(1304): at softwarex.mycostomlistview.MainActivity$1.onItemClick(MainActivity.java:50)
07-30 18:36:09.914: E/AndroidRuntime(1304): at android.widget.AdapterView.performItemClick(AdapterView.java:284)
07-30 18:36:09.914: E/AndroidRuntime(1304): at android.widget.ListView.performItemClick(ListView.java:3513)
07-30 18:36:09.914: E/AndroidRuntime(1304): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1812)
07-30 18:36:09.914: E/AndroidRuntime(1304): at android.os.Handler.handleCallback(Handler.java:587)
07-30 18:36:09.914: E/AndroidRuntime(1304): at android.os.Handler.dispatchMessage(Handler.java:92)
07-30 18:36:09.914: E/AndroidRuntime(1304): at android.os.Looper.loop(Looper.java:123)
07-30 18:36:09.914: E/AndroidRuntime(1304): at android.app.ActivityThread.main(ActivityThread.java:3683)
07-30 18:36:09.914: E/AndroidRuntime(1304): at java.lang.reflect.Method.invokeNative(Native Method)
07-30 18:36:09.914: E/AndroidRuntime(1304): at java.lang.reflect.Method.invoke(Method.java:507)
07-30 18:36:09.914: E/AndroidRuntime(1304): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
07-30 18:36:09.914: E/AndroidRuntime(1304): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
07-30 18:36:09.914: E/AndroidRuntime(1304): at dalvik.system.NativeStart.main(Native Method)
谢谢。它做到了。 – user1137313