Android
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Android – select from a table based on relationships saved in another table
My situation I use SQLite on Android to store some data. This data is all in the same table, but each row can have one…… -
Java – Android studio on MAC: unable to find system compiler
When I tried to compile Hello world, I got this on one of my Macs On my other Mac, I don't have any problems. As far a…… -
Java – application crash due to NullPointerException
I am using listview. When I click the button, a dialog box containing EditText and button will open. When I click the …… -
Java – chat application in Android so that sender and receiver messages should be on different sides
protected void onPostExecute( ArrayList<HashMap<String,String>> myArrayList)// for arraylist(ArrayList…… -
Android expandablelistview and onchildclick do not work properly
I've been reading a lot of threads with the same problem as me, but I can't figure out what happened. I have an extens…… -
Android: the fixed title of amazinglistview is inaccessible
I have a project that uses amazinglistview: https://code.google.com/p/android-amazing-listview/ I need a clickable but…… -
Java – GCM keeps messages on the server until new messages arrive
I am using Google cloud messaging with the latest version of Google play service to develop applications If I turn off…… -
Java – Android – continuous drawing of shapes to random locations
I'm a little new about Android animation. I'm working on a project to put a picture of a ball in a random position - a…… -
Android – the layout differs between the graphical layout and the actual device
I have the following XML layout code: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="ht…… -
Android – how to pause and resume in libgdx using the back key?
I'm using libgdx to create a game. Now I have two questions First, I tried to grab the key so that the game was suspen…… -
Android – how do I call a method from the onclicklistener.onclick method?
import java.io.InputStreamReader; import java.io.Reader; import java.net.URL; import java.net.URLEncoder; import com.…… -
Java – Android bitmap. Createbitmap() fills the heap
I need a big bitmap (6000) × 2000), so I created a: Bitmap.Config conf = Bitmap.Config.ARGB_4444; Bitmap bm = Bitmap.c…… -
Android – clips are not visually deleted
I'm trying to replace the fragment with a new fragment. To do this, I use the following code However, when viewed on A…… -
Android – contentobserver onchange() repeated multiple times
I'm trying to query data from calllog and insert it into the database. To do this, I create a contentobserver as an in…… -
Android – sqlitedatabase vs file store
I want to store structure type data (i.e. call log information, such as name, number, number type, date, time, duratio…… -
The problem of trying to build pocketsphinx androiddemo using NDK
I am trying to compile the pocketsphinx androiddemo, which provides a sample implementation of CMU pocketsphinx speech…… -
Android – process recyclerview onclicklistener in activity / fragment
Migrating from listview to recyclerview to handle "onItemClick" seems to be very painful One of the two most common me…… -
The problem of calling native Android jars encountered in xamarin.form (I) naming conflict during compilation
Principle description of official calling Java: https://docs.microsoft.com/zh-cn/xamarin/android/platform/java-integra…… -
Android hide title bar
Set the attribute on the < activity > element: Android: theme as @ Android: style / theme.notitlebar.fullscreen.…… -
android base layout – top middle bottom
Android upper, middle and lower layout, and the middle part is automatically filled. The code is as follows, of which …… -
Android – reverse checkbox for textview
I tried different ways to reverse the textview box in Android. I use this "link" to do this But it doesn't work for me…… -
Android – when replacing a fragment, the savedinstancestate bundle is cleared when restoring the fragment after double rotation
We call them fragments a and B. fragment B is just a detailed view of A. it replaces fragment a when a button is click…… -
Android – handling conflicts in bullets through. G3db files
I am developing a simple application using libgdx and bullet API. I have completed the basic prototype of this applica…… -
Java – is there any system certificate store on Android?
In the desktop Java, there is sun.security.mscapi.sunmscapi cryptoprovider. We can use it and keystore to access the w…… -
android – DragEvent.ACTION_ Drop will never be called
I tried to use image drag on my Android application. My problem is that dragevent.action will never be called when I s…… -
Android – how do I use explicit intent to pass URIs?
I want to use expand to launch a specific number on the softphone application. The implicit application looks like: In…… -
Android NFC transceiver () uses NFCF Technology (Sony felica)
I'm trying to connect my Android Tablet to a device using NFC and retrieve data from the device I tried According to N…… -
Android – how to get the contacts users often talk to?
Can I use contactscontract to get the contacts that users often talk to? I know I can use calllog ContentProvider and …… -
Creating timepickerdialog using custom styles in Android
I want to create a dialogfragment or dialog with TimePicker, as shown in the figure below. The problem is that my appl…… -
Basic process of eclipse NDK development
Create Android project - > complete the preparation of Java functions, add JNI interface functions (native function…… -
Android – how to find the source code for creating byte arrays
Using DDMS and creating hprof, I can see the "histogram" view of data in my application and notice too many very large…… -
Android – how to upload data from byte array to PHP server?
I upload the image file from the device to the PHP server by converting the file into a byte array. I use android-asyn……