android-listview

问题 I am trying to show all my data from my database into the listview Code to create database: DataHander.java package com.example.testingforstack; import android.content.ContentValues; import android.content.Context; import android.database.Cursor; import android.database.SQLException; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; public class DataHandler { public static final String NAME = "name"; public static final String EMAIL = "email";

问题 // Adding menuItems to ListView mylist=(ListView)findViewById(R.id.lstshowcatalogue); ListAdapter adapter=new LazyAdapter(this, menuItems,getApplicationContext()); mylist.setAdapter(adapter); mylist.setOnItemClickListener(new OnItemClickListener(){ @Override public void onItemClick(AdapterView<?> Parent, View view, int position, long id) { // TODO Auto-generated method stub if(position>=0) { TextView c = (TextView) view.findViewById(R.id.txtlargeimage); largeimage = c.getText().toString();

问题 Basically I have a list of objects of class Ingredient which looks like this: class Ingredient { public int id; public String name; public Ingredient(String name) { this.name = name; } } so each object from list have a name. Now to use ArrayAdapter I need to have a List of strings filled with names. Is there any way to use ArrayAdapter with my list of Ingredients? This is how it looks right now List<Ingredient> ingredientsList= new ArrayList<Ingredient>(); ingredientsList.add(new Ingredient(

问题 I need to highlight a listview item when i touch it and to stay highlighted. I tried everything I found but nothing worked. Here is my code: This is the listview: <ListView android:id="@+id/lvUsers" android:layout_width="300dp" android:layout_height="fill_parent" android:layout_alignParentLeft="true" android:background="@drawable/border2" android:choiceMode="singleChoice" android:padding="5dp" > </ListView> The @drawable/border2 is just a border around the listview. This is the listview item

问题 I want to implement RadioButton and EditText inside a row of a ListView. I am using an ArrayAdapter to populate the List. But the problem is that when i am selecting a RadioButton and scroll down the list and scroll up again the Radiobutton which had been selected is unselected. Same with the content of the EditText. The text getting removed when I scroll up. 回答1: Check your adapter, you are probably don't do the job right on bindView() . You have to set again on bindView() the values. I will

问题 I hope that some of you can help me with this: I got a custom listview with 2 textviews and 1 radio button. I want to make it as a single choice, but everytime I click on a item on the listview, it doesn't remove the "check" from the other radio button. My xml code: <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" > <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" > <TextView android:id=

问题 I have implemented a swipey tabs app using viewpager by using this template in Eclipse Now i get an activity which extends FragmentActivity like this package com.example.abcd2; import java.util.Locale; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.app.NavUtils; import android.support.v4.view.ViewPager;

问题 I added a divider drawable to my listview but it appears for all the items except after the last item. I only have 5 items on the list, so its all white space after the last item, i want to have a divider even after the last item i tried this: android:footerDividersEnabled="true" in my listview. But it didnt work Thank You 回答1: Try following in XML <View android:background="#00ff00" android:layout_width="fill_parent" android:layout_height="3dp" android:layout_alignParentLeft="true" android

问题 well, I'm trying to get my listview height after I change it data, but it always return the prior height, not the actual. So when I set the setadapter, and it get the old value. e.g: ActualHeight = 100 Change data (filter) -> NewHeight = 60 ListView.GetHeight still returns 100. Again ActualHeight = 60 Change data (filter) -> NewHeight = 20 ListView.GetHeight still returns 60. The code i'm using is it: int width, height = 0; EditText edt_search; ListView lv_marca; List<Marca> list_marca = new

问题 I am new android now I want to display image from an url. I am using imageview in listview. I want to add the list of images into the each row of the list item. I used SimpleAdapter but the imageview shows blank. Here's the main activity: package com.example.mysqltest; import java.util.ArrayList; import java.util.HashMap; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.app.ListActivity; import android.app.ProgressDialog; import android