baseadapter

Android 7 & 8 Only - ClassCastException: LayoutParams cannot be cast to AbsListView$LayoutParams

由 戏子无情 提交于 2021-01-27 22:46:48
问题 I have a very odd problem that I'm looking into. I didn't write the original code, but I am investigate why its crashing now, all of a sudden. After looking at it, I don't see any reason for the crash. Also, it works perfectly in lower OS levels (e.g., Android 6); however, its consistently crashing when run in Android 7 and 8. It was also very difficult to reproduce at first, because the crash only manifests after the 6th indices... Was originally thinking that it might be some corrupted data

How to implement hashCode and equals method to remove duplicates from ArrayList

由 故事扮演 提交于 2020-12-13 02:57:07
问题 I'm getting data from database model Income. This is how it looks @Table(name = "Income") public class Income extends Model { @Column(name = "AmountDate") public String amountDate; @Column(name = "Amount") public Double amount; @Column(name = "Day") public int day; @Column(name = "Month") public int month; @Column(name = "Year") public int year; } In my fragment I'm getting all Income data from database. In my BaseAdapter I would like to create ArrayList with month and year in it. It would

Android TimeZone.getAvailableIDs() producing strange strings

由 限于喜欢 提交于 2020-04-30 07:52:57
问题 I have an Android application which uses TimeZone.getAvailableIDs() to pull all available timezone ID strings. These IDs are saved to an ArrayList , as per the following: ArrayList<String> clocks = new ArrayList<>(); String[] ids = TimeZone.getAvailableIDs(); Collections.addAll(clocks, ids); This ArrayList is used later on to populate a ListView using my custom BaseAdapter. There are a few entries that aren't particularly informative and I don't want them in the list, such as: Etc/GMT+10

Android TimeZone.getAvailableIDs() producing strange strings

由 落爺英雄遲暮 提交于 2020-04-30 07:52:37
问题 I have an Android application which uses TimeZone.getAvailableIDs() to pull all available timezone ID strings. These IDs are saved to an ArrayList , as per the following: ArrayList<String> clocks = new ArrayList<>(); String[] ids = TimeZone.getAvailableIDs(); Collections.addAll(clocks, ids); This ArrayList is used later on to populate a ListView using my custom BaseAdapter. There are a few entries that aren't particularly informative and I don't want them in the list, such as: Etc/GMT+10

Android TimeZone.getAvailableIDs() producing strange strings

由 空扰寡人 提交于 2020-04-30 07:52:08
问题 I have an Android application which uses TimeZone.getAvailableIDs() to pull all available timezone ID strings. These IDs are saved to an ArrayList , as per the following: ArrayList<String> clocks = new ArrayList<>(); String[] ids = TimeZone.getAvailableIDs(); Collections.addAll(clocks, ids); This ArrayList is used later on to populate a ListView using my custom BaseAdapter. There are a few entries that aren't particularly informative and I don't want them in the list, such as: Etc/GMT+10

java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getImportantForAccessibility()' using BaseAdapter

由 冷暖自知 提交于 2020-04-20 18:38:21
问题 How to get mp3 files from a folder in SDcard and show in custom listview using BaseAdapter and also want to play the song on Item Click. I am getting the mp3 files from a SDCard particular folder using base adapter.Getting the mp3 files but unable to add to custom base Adapter. I am getting this exception : java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getImportantForAccessibility()' on a null object reference using BaseAdapter. Below is my Fragment:

java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getImportantForAccessibility()' using BaseAdapter

由 一个人想着一个人 提交于 2020-04-20 18:37:10
问题 How to get mp3 files from a folder in SDcard and show in custom listview using BaseAdapter and also want to play the song on Item Click. I am getting the mp3 files from a SDCard particular folder using base adapter.Getting the mp3 files but unable to add to custom base Adapter. I am getting this exception : java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getImportantForAccessibility()' on a null object reference using BaseAdapter. Below is my Fragment:

How to create onclick event in adapter using interface android?

由 不想你离开。 提交于 2020-04-06 03:47:54
问题 How can I create on click event using interface? In my application I've created view click interface to detect clicking on adapter items into parent activity. After creating interface and method into adapter how I can use this interface to call the view listener ? 回答1: Please check this code, It's working fine for me. First Create Adapter class. class ChapterAdapter(private val activity: Activity, val mWords: ArrayList<Chapter>, val btnlistener: BtnClickListener) : RecyclerView.Adapter

Android BaseAdapter

由 ☆樱花仙子☆ 提交于 2020-03-20 03:08:40
ListView显示与缓存机制： 只会加载当前屏幕所要显示的数据。显示完成就会被回收到Recycler中。 BaseAdapter 基本结构： public int getCount(); // 适配器中数据集中数据的个数 public Object getIten(int position); //获取数据集中与指定索引对应的数据项 public long getItemId(int position); //获取指定行对应的ID public View getView(int position,View convertView,ViewGroup parent); //获取每一个Item的显示内容 ViewHolder优化BaseAdapter: 创建Bean对象，用于封装数据。 在构造方法中初始化用于映射的数据LIST. 创建ViewHolder类，创建布局映射关系。 判断convertView,为空则创建，并设置TAG，否则通过TAG来取出ViewHolder 给ViewHolder中的控件设置数据。 public class Adapter extends BaseAdapter{ private List<ItemBean> list ; private LayoutInflater inflater ; public Adapter(List<ItemBean>

How to Refresh ListView in Fragment that is filled with BaseAdapter?

由 倾然丶 夕夏残阳落幕 提交于 2020-03-14 09:22:34
问题 I want to Refresh a ListView in a Fragment when a Dialog is closed. Until now the refresh only works when I restart the app and I don't really know why. Here are the classes: This is the Fragment with the ListView on it, that i want to refresh, when the Dialog is closed. public class RegisterListFragment extends Fragment { public static final String TAG = "RegisterListFragment"; RegisterListAdapter adapter; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container,
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