android-listview

问题 I want to highlight selected items thats on an GridView, so a GridView must behave like an multi-choice ListView. Can somebody suggest how to do that? 回答1: Please use below code for multiselect gridview, the below example get images from device's gallery, may be it will solve your problem. GridView_Activity.java:- public class GridView_Activity extends Activity { private int count; private Bitmap[] thumbnails; private boolean[] thumbnailsselection; private String[] arrPath; private

问题 I have a button in each list item of list view. In that button click event i have some codes to run. In click event im showing the progress dialog before the code runs. but its not getting shown. After all the codes in click event completes in the end progress dialog gets shown. Plz help me. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity1); TheListViewM = (ListView) findViewById(R.id.lvItems); ImageAdapter

问题 Situation: I'm getting a JSONObject containing user's playlist from the server. I want to display this data in a ListView , there are 288 audio files in my test case. The JSON is parsed correctly, the size equals to 288. I created a help class and parametrized the ArrayList with its Objects. The problem: there're exactly 288 items in my ListView BUT the correct entries Artist - Title go up to index 13 (don't know why) and then they get repeated . So I don't have 288 different entries in the

问题 I have been spending my time for several days with this question and getting same error. I have been trying to pass object between fragments which are held in action bar. Please tell me where i make the mistake. Here my code: package com.restaurantexample.fragment; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view

问题 Does anyone see why my app crashes when I try to load this page with a ListView? Probably an easy fix but I'm new and not sure whats wrong! Trying to repeat scorecard_row in a listview, then using an ArrayAdapter populate each row with text 1-18, should be easy! But when I run the app and click on the page it crashes! If I change this line: ArrayAdapter adapter = new ArrayAdapter<String>(this, R.layout.scorecard_row, R.id.txtHoleNum, values); to ArrayAdapter adapter = new ArrayAdapter<String>

问题 I have layout like <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:gravity="center_vertical|center_horizontal" android:orientation="horizontal" > <EditText android:id="@+id/et_OK" android:layout_width="400dip" android:layout_height="50dip" android:layout_toRightOf="@id/tv_patientNOK" android:background="@android:drawable/editbox_background" /> <Button

问题 Problem description: I wanted a "delete" function which could perform delete/remove of the selected entry in a listview and at the same time delete the residing video file string in the Video_List directory then it refresh the content of the listview? I'm rather new in android/java can someone help me with it? Do scroll down to evaluate the problem i'm facing please!! Can someone tell me what is the specific code i should add into my current codes to perform the above mention function?? 回答1:

问题 I have an adapter class which uses the getFilter function within a ListView . I wanted to modify it so that when the search is empty, the EditText text color becomes red. I have the following code which doesn't FC my app but the return string is blank instead of what is in the EditText My partial adapter class: @SuppressWarnings("unchecked") @Override protected void publishResults(CharSequence constraint, FilterResults results) { data = (ArrayList<SetRows>)results.values; if (data.isEmpty())

问题 I'm facing this error in displaying a List View. The problem is in the adapter but I couldn't find the solution. This in my logcat : FATAL EXCEPTION: main java.lang.NullPointerException at com.client.alm.WorkItemAdapter.getView(WorkItemAdapter.java:68) at android.widget.AbsListView.obtainView(AbsListView.java:2159) at android.widget.ListView.measureHeightOfChildren(ListView.java:1246) at android.widget.ListView.onMeasure(ListView.java:1158) at android.view.View.measure(View.java:15513) at

问题 So, for example I have some ListView lv . In each item in lv I got TextView tv . Now I want to search each tv in lv and if I find tv with text I wanted to find, then I want to color this specific item. I tried that: android - listview get item view by position and then color an item, but it crashed. Sorry, I deleted the code (was trying several methods). Any idea how to do it? Thx for help ;) Edit: I know I can use custom adapter etc. But I want to avoid creating new adapters due to