我有一個問題,我想要使用OnItemClickListener接口的onItemClick方法來獲取listView項目的文本。問題是simpleCursorAdaptor的佈局有3個TextViews,我如何才能獲得那些TextView中的一個的文本?我得到一個ClassCastException。如何抽取佈局中所有3個textView的內容。這裏是我的代碼在我的應用程序中的ClassCastException
package com.messageHider;
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class sms extends Activity implements OnItemClickListener
{
ListView listViewSMS;
Uri smsUri=Uri.parse("content://sms/inbox");
Cursor cursor;
SimpleCursorAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sms);
listViewSMS=(ListView)findViewById(R.id.listViewSMS);
listViewSMS.setOnItemClickListener(this);
}
@Override
protected void onStart() {
super.onStart();
getsms();
}
private void getsms()
{
cursor=getContentResolver().query(smsUri,null, null, null, null);
String[]from={"person","body","date"};
int[]to={R.id.textViewPerson,R.id.textViewBody,R.id.textViewDate};
adapter=new SimpleCursorAdapter(this,R.layout.smslist, cursor, from, to);
listViewSMS.setAdapter(adapter);
}
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Toast.makeText(getApplicationContext(),((TextView) v).getText(), Toast.LENGTH_LONG).show();
}
}
這裏是適配器的佈局:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" android:orientation="vertical">
<LinearLayout android:layout_height="wrap_content" android:id="@+id/linearLayout1" android:layout_width="match_parent">
<TextView android:text="TextView" android:layout_height="wrap_content" android:padding="5dp" android:layout_width="wrap_content" android:id="@+id/textViewPerson"></TextView>
<TextView android:text="TextView" android:layout_height="wrap_content" android:layout_width="fill_parent" android:id="@+id/textViewDate" android:gravity="right" android:paddingRight="5dp"></TextView>
</LinearLayout>
<TextView android:text="TextView" android:id="@+id/textViewBody" android:layout_height="wrap_content" android:height="60dp" android:padding="5dp" android:layout_width="fill_parent"></TextView>
</LinearLayout>
我會欣賞的幫助。
請張貼在你的代碼異常,並突出顯示(帶有註釋),在那裏它被觸發。 – Mat 2011-05-19 06:46:48