我正在使用此代码从数据库中获取数据并将其直接显示到正确显示的自定义 ListView 中。这就是我使用 SimpleCursorAdapter 的方式
public void queryArticles(String querytext,Context mContext)
{
SQLiteDatabase db=this.getWritableDatabase();
Cursor cur=null;
String strquery="select rowid _id,part,A_name,italic,AS_name,Desc_art from Articles where AS_name LIKE '%"+querytext+"%'";
cur=db.rawQuery(strquery,null);
if(cur!=null&&cur.getCount() > 0)
{
do
{
String[] fromColumns = { "part", "A_name", "italic", "AS_name" };
int[] toViews = { R.id.textView1, R.id.textView2, R.id.textView3, R.id.textView4 };
SimpleCursorAdapter adapter = new SimpleCursorAdapter(mContext,R.layout.query_cell, cur, fromColumns, toViews, 0);
QueryFragment.listview1.setAdapter(adapter);
}
while(cur.moveToNext());
}
}
我试着用这个点击它
QueryFragment.listview1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
});
在 while 循环内，在 if 条件外，也进入我的 Activity ，但它给了我这个异常(exception)。
07-29 13:24:22.970: E/AndroidRuntime(25608): FATAL EXCEPTION: main
07-29 13:24:22.970: E/AndroidRuntime(25608): java.lang.RuntimeException: Don't call setOnClickListener for an AdapterView. You probably want setOnItemClickListener instead
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.widget.AdapterView.setOnClickListener(AdapterView.java:780)
07-29 13:24:22.970: E/AndroidRuntime(25608): at com.vivekwarde.indianconstitution.QueryFragment.onCreateView(QueryFragment.java:48)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1500)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:938)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1115)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1478)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:446)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.os.Handler.handleCallback(Handler.java:615)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.os.Handler.dispatchMessage(Handler.java:92)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.os.Looper.loop(Looper.java:137)
07-29 13:24:22.970: E/AndroidRuntime(25608): at android.app.ActivityThread.main(ActivityThread.java:4794)
07-29 13:24:22.970: E/AndroidRuntime(25608): at java.lang.reflect.Method.invokeNative(Native Method)
07-29 13:24:22.970: E/AndroidRuntime(25608): at java.lang.reflect.Method.invoke(Method.java:511)
07-29 13:24:22.970: E/AndroidRuntime(25608): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
07-29 13:24:22.970: E/AndroidRuntime(25608): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)
07-29 13:24:22.970: E/AndroidRuntime(25608): at dalvik.system.NativeStart.main(Native Method)
所以，我这样使用setOnItemClickListener
listview1.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Log.v("hi","not getting called ? ");
}
public void onNothingSelected(AdapterView<?> arg0) {
}
});
但是还是没有触发setOnItemSelectedListener事件，请问如何解决这个问题？
最佳答案
你的问题在这里..
new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,.....
改成
listview1.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> parent, View view, int position, long id){
//do your task
}
}
这里 position 将帮助您找出选中的项目..因此无需在选中和未选中时耗尽脑力..
关于android - SimpleCursorAdapter 的 onClick，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25011342/