adapter

ViewPager and Database

由 不问归期 提交于 2019-12-05 06:32:06
The data is in a Database, so I would normally use CursorAdapter and have it work with CursorLoader on a ListView, however now I need a ViewPager instead of a ListView and that takes a PagerAdapter and I only have it have seen it work with lists. Is there a native pager adapter that uses a cursor or ill have to make it work? Thanks! Based on the internals of the CursorAdapter I have an implementation that extends FragmentPagerAdapter with the only difference that you will use the information coming from a Cursor to instantiate a Fragment . package com.example; import android.content.Context;

Make different clickable views on a listview item in android

由 Deadly 提交于 2019-12-05 06:27:21
问题 In my application i have a listView. each item of the list view contains a clickable main body(image and some text) and 3 other textViews which are clickable. when i click on the item it shows the map of the respective area shown on the item, this works fine because i am using onItemClick on the listview in my activity. But when i want to implement the onClick on the 3 other TextViews marked red in the image i have to implement the onClick in the getView method of the adapter class. Here

ListView and hidden Id. How it is possible?

由 笑着哭i 提交于 2019-12-05 02:03:48
问题 I'm developing an application for android and now I have implemented a ListView that shows a list of courses, connected to a database. I would like to know how to include, with the name, an hidden id (that come from the db) so that once the user click on the elements the app goes to the relative view of the selected courses. And how can I maintain the id during the navigation inside the course-view? At the moment my code just load the name of the courses from the db and set in the list view:

example using rhino's JavaAdapter

由 懵懂的女人 提交于 2019-12-05 01:11:52
问题 Can someone provide me an example on how to extend a java class in java script using Rhino's java adapter ? 回答1: For anyone else who might come across this, there's a decent example here (the author uses it to extend awt.Canvas ). var smileyCanvas = new JavaAdapter(awt.Canvas, { paint: function (g) { var size = this.getSize(); var d = Math.min(size.width, size.height); var ed = d / 20; var x = (size.width - d) / 2; var y = (size.height - d) / 2; // draw head (color already set to foreground)

Should adapters in Android be static inner classes or non-static inner classes

由 醉酒当歌 提交于 2019-12-05 00:31:44
I have a ListView in an Activity and I am setting a custom adapter to the ListView. Should my adapter class be: private static class MyAdapter extends ArrayAdapter or private class MyAdapter extends ArrayAdapter I guess it should make no difference as long as the adapter is enclosed within the activity reference but wanted to confirm that. Holding onto the context is fine from within an adapter if you are careful about how you use the adapter. Adapters are usually tied to the lifecycle of their Context (an Activity) so it's fine. Use a WeakReference only if it makes sense. 来源： https:/

python computer info look

由 喜欢而已 提交于 2019-12-04 23:15:42
计算机信息查看-. import platform import platform def TestPlatform(): print("---------SYSTEM INFO--------") #获取Python版本 3.7.1 print(platform.python_version()) #获取Python版本 v3.7.1 print(platform.python_branch()) #获取操作系统可执行程序的结构 (’32bit’, ‘WindowsPE’) print(platform.architecture()) # 计算机的名称 DESKTOP-90JE76G print(platform.node()) # 获取操作系统名称及版本号，Windows-7-6.1.7601-SP1 print(platform.platform()) # 计算机处理器信息， Intel64 Family 6 Model 158 Stepping 10, GenuineIntel print(platform.processor()) # 获取操作系统中Python的构建日期 ('v3.7.1:260ec2c36a', 'Oct 20 2018 14:57:15') print(platform.python_build()) # 获取系统中python解释器的信息 MSC

Populating a GridView with ImageViews dynamically/programmatically using a ImageAdapter

由 别来无恙 提交于 2019-12-04 22:18:39
问题 I try to develop an Android App which allows the user to fetch data from flickr and show it in a GridView (with some nice 3D-Animation). After some adventures i got it almost running, but now I'm stuck. Here's the problem: I got a UI Thread "LoadPhotosTask" which gets the pictures from flickr, just like the open source application photostream. In the method onProgressUpdate(LoadedPhoto... value) of that subclass I call addPhoto() . Until now everythings fine - I got some nice Bitmap and

Spinner ArrayAdapter crashing with custom layout

由 痴心易碎 提交于 2019-12-04 21:31:29
I am trying to experiment with a custom Spinner / ArrayAdapter. Following is my code: myspinner=(Spinner)findViewById(R.id.myspinner); myadapter=new ArrayAdapter<String>(this,R.layout.mytextview,R.id.mytv,sample_data); myadapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); myspinner.setOnItemSelectedListener(this); myspinner.setAdapter(myadapter); Following is the custom layout mytextview that contains mytv: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:id="@+id

AutoCompleteTextView not displaying result even when the ArrayAdapter is updated

由 本小妞迷上赌 提交于 2019-12-04 20:51:14
问题 I'm trying to get an AutoCompleteTextView(ACTV) to display results I'm a getting from a network resource. I have set the completion-treshold to 2 and I can see that the request is fired when I enter to characters. The result I am getting is the correct one. Lets say I write "ca", and I get the result "car" as an autocompletion. I have a callback function which receives the result from an AsyncTask and puts the result into the ArrayAdapter. Then I call .showDropDown() on the ACTV and an empty

Make last Item / ViewHolder in RecyclerView fill rest of the screen or have a min height

由 倾然丶 夕夏残阳落幕 提交于 2019-12-04 17:51:45
问题 I'm struggeling with the RecyclerView. I use a recycler view to display the details of my model class. //My model class MyModel { String name; Double latitude; Double longitude; Boolean isOnline; ... } Since some of the values might not be present, I use the RecyclerView with custom view types (one representing each value of my model). //Inside my custom adapter public void setModel(T model) { //Reset values itemCount = 0; deviceOfflineViewPosition = -1; mapViewPosition = -1; //If device is
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