如何点击它时,你得到的ListItem文本值? [英] How to get the listitem text value when click on it?
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问题描述
我有一个列表项,我想获得点击的项目文本值。下面codeS不为我工作。
它做工精细,当我更改以下行:
字符串全名=(字符串)l.getItemAtPosition(位置);
要:
字符串全名=Hello World的;
感谢您的帮助。
@覆盖
保护无效onListItemClick(ListView中升,视图V,INT位置,长的id){
super.onListItemClick(L,V,位置ID); 字符串全名=(字符串)l.getItemAtPosition(位置);
意图桶=新意图(SQLView.this,SQLView2.class); 束B =新包();
b.putString(全名,全名);
bucket.putExtras(二);
startActivity(桶);
}
下面是我在LogCat中
得到了错误 15 12-16:41:50.322:D / AndroidRuntime(279):关闭VM
12-16 15:41:50.322:W / dalvikvm(279):主题ID = 1:螺纹未捕获的异常退出(组= 0x4001d800)
12-16 15:41:50.352:E / AndroidRuntime(279):致命异常:主要
12-16 15:41:50.352:E / AndroidRuntime(279):java.lang.ClassCastException:android.database.sqlite.SQLiteCursor
12-16 15:41:50.352:E / AndroidRuntime(279):在com.test.calculator.SQLView.onListItemClick(SQLView.java:52)
12-16 15:41:50.352:E / AndroidRuntime(279):在android.app.ListActivity $ 2.onItemClick(ListActivity.java:321)
12-16 15:41:50.352:E / AndroidRuntime(279):在android.widget.AdapterView.performItemClick(AdapterView.java:284)
12-16 15:41:50.352:E / AndroidRuntime(279):在android.widget.ListView.performItemClick(ListView.java:3382)
12-16 15:41:50.352:E / AndroidRuntime(279):在android.widget.AbsListView $ PerformClick.run(AbsListView.java:1696)
12-16 15:41:50.352:E / AndroidRuntime(279):在android.os.Handler.handleCallback(Handler.java:587)
12-16 15:41:50.352:E / AndroidRuntime(279):在android.os.Handler.dispatchMessage(Handler.java:92)
12-16 15:41:50.352:E / AndroidRuntime(279):在android.os.Looper.loop(Looper.java:123)
12-16 15:41:50.352:E / AndroidRuntime(279):在android.app.ActivityThread.main(ActivityThread.java:4627)
12-16 15:41:50.352:E / AndroidRuntime(279):在java.lang.reflect.Method.invokeNative(本机方法)
12-16 15:41:50.352:E / AndroidRuntime(279):在java.lang.reflect.Method.invoke(Method.java:521)
12-16 15:41:50.352:E / AndroidRuntime(279):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:868)
12-16 15:41:50.352:E / AndroidRuntime(279):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
12-16 15:41:50.352:E / AndroidRuntime(279):在dalvik.system.NativeStart.main(本机方法)
解决方案
,如果你使用的是改变你的code SimpleCursorAdapter
或的CursorAdapter
:
@覆盖
保护无效onListItemClick(ListView中升,视图V,INT位置,长的id){
// TODO自动生成方法存根
super.onListItemClick(L,V,位置ID);
光标的光标=((SimpleCursorAdapter)l.getAdapter())getCursor();
cursor.moveToPosition(位置); 字符串全名= cursor.getString(cursor.getColumnIndex(全名)); 意图桶=新意图(SQLView.this,SQLView2.class); 束B =新包();
b.putString(全名,全名);
bucket.putExtras(二);
startActivity(桶);}
I have a listitem and I would like to get the clicked item text value. The following codes is not work for me.
It work fine, When I change the following line:
String fullname = (String) l.getItemAtPosition(position);
To:
String fullname = "Hello world";
Thanks for your help.
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
String fullname = (String) l.getItemAtPosition(position);
Intent bucket = new Intent(SQLView.this, SQLView2.class);
Bundle b = new Bundle();
b.putString("fullname", fullname);
bucket.putExtras(b);
startActivity(bucket);
}
Here's the error I got on the LogCat
12-16 15:41:50.322: D/AndroidRuntime(279): Shutting down VM
12-16 15:41:50.322: W/dalvikvm(279): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
12-16 15:41:50.352: E/AndroidRuntime(279): FATAL EXCEPTION: main
12-16 15:41:50.352: E/AndroidRuntime(279): java.lang.ClassCastException: android.database.sqlite.SQLiteCursor
12-16 15:41:50.352: E/AndroidRuntime(279): at com.test.calculator.SQLView.onListItemClick(SQLView.java:52)
12-16 15:41:50.352: E/AndroidRuntime(279): at android.app.ListActivity$2.onItemClick(ListActivity.java:321)
12-16 15:41:50.352: E/AndroidRuntime(279): at android.widget.AdapterView.performItemClick(AdapterView.java:284)
12-16 15:41:50.352: E/AndroidRuntime(279): at android.widget.ListView.performItemClick(ListView.java:3382)
12-16 15:41:50.352: E/AndroidRuntime(279): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1696)
12-16 15:41:50.352: E/AndroidRuntime(279): at android.os.Handler.handleCallback(Handler.java:587)
12-16 15:41:50.352: E/AndroidRuntime(279): at android.os.Handler.dispatchMessage(Handler.java:92)
12-16 15:41:50.352: E/AndroidRuntime(279): at android.os.Looper.loop(Looper.java:123)
12-16 15:41:50.352: E/AndroidRuntime(279): at android.app.ActivityThread.main(ActivityThread.java:4627)
12-16 15:41:50.352: E/AndroidRuntime(279): at java.lang.reflect.Method.invokeNative(Native Method)
12-16 15:41:50.352: E/AndroidRuntime(279): at java.lang.reflect.Method.invoke(Method.java:521)
12-16 15:41:50.352: E/AndroidRuntime(279): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
12-16 15:41:50.352: E/AndroidRuntime(279): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
12-16 15:41:50.352: E/AndroidRuntime(279): at dalvik.system.NativeStart.main(Native Method)
解决方案
Change your code as if you are using SimpleCursorAdapter
or CursorAdapter
:
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
super.onListItemClick(l, v, position, id);
Cursor cursor = ((SimpleCursorAdapter)l.getAdapter()).getCursor();
cursor.moveToPosition(position);
String fullname = cursor.getString(cursor.getColumnIndex("fullname"));
Intent bucket = new Intent(SQLView.this, SQLView2.class);
Bundle b = new Bundle();
b.putString("fullname", fullname);
bucket.putExtras(b);
startActivity(bucket);
}
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