Android
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Android – calendar events in week view and day view
I want to create a calendar application with weekview and dayview functions Please give me some suggestions. I have se…… -
Android – speed limit for scrolling views
My app scrolls so fast! How do I limit the scrolling speed of the scrolling view in my Android application? Rolling ca…… -
Java – debug.keystore does not exist
I'm trying to generate MD5 fingerprints, but the problem is that every time I try to enter the whole code, I say debug…… -
Java – sharing constants in multiple classes (Android Minesweeper)
I'm using the extended button to create an instance of a class and directly access integer variables for better perfor…… -
Android – read PDF file from SD card
I want to read the PDF file stored in my SD card. I try to use this clip File file = new File(Environment.getExter…… -
Android – get prices from retailer websites
I'm building an IOS and android app that scans the bar code and displays the product page of the book from the retaile…… -
Will the activity of Android – ontouchevent() be triggered 3 times?
In my titlescreen activity, I have @Override public boolean onTouchEvent(MotionEvent event) { Log.d("MyActivity", "…… -
Java – how to handle tags in Android
I've been looking for a while and haven't been able to find the right answer for this one. To make a long story short,…… -
Android – unable to get r.anim in my project
I started some Android programming, and I'm trying to do some animation in my activities. But all references use inter…… -
Java – Android – how to avoid duplicate code between activities
This is a general problem, but I will give you a specific example I have many activities in the app. In all activities…… -
Android – how do I add threads?
This continues from this post's question I can't imagine how to add a separate thread from the main UI thread to colle…… -
Android – compress the bitmap and save it to the activity result of the sdcard
I've been discussing this problem and I'm not sure what to do. What I want to do is: take a picture, compress it to PN…… -
Android – how do I drag the view horizontally?
In controls such as listview and gallery, you can drag items vertically or horizontally I have a textview. I successfu…… -
Android – canvas will not be updated (invalidated) until the end of the entire while loop
I'm trying to move a ball on the canvas. A and B are similar to X and Y coordinate positions. Any way to try to get di…… -
Android – get / set the sharedpreference global value
Hi, I have a class (mycustomform. XML) that I use as the loginform of the user. Now I want to use SharedPreferences to…… -
Java – how do I know if my phone is charging
I need to know (through my app) whether the Android device is charging. Any ideas? thank you resolvent: One thing I fo…… -
Java – how do I convert a string to the int value of the const class?
I have variables: String colorName = "BLUE"; I want to set this color to paint in the Android application. It should…… -
How do I use cursors to retrieve data from a database? (Android,SQLite)
I'm stuck. I can't find out what I did wrong, so please help anyone. Although this is a very simple task, I don't unde…… -
Android – connect points on the map with lines
I have three GPS points in the android app. How do I set up a map to connect the first and second with the red and the…… -
Android – how do I display alerts within an active group?
My application has a tab bar. In order to maintain it, I use an activity group. When I click these tabs, I must displa…… -
Java – intentional Android contact information update?
I can use putextra to transfer information as additional data to create a new contact with intent. Can I use informati…… -
Android – prevent “flicker” when calling drawable. Draw()
I have a small experimental application (basically a very simplified version of lunarlander demo in Android SDK) and o…… -
Android – intent.putextra (intent.extra_shortcut_icon, BMP) image off center
I encountered some problems creating shortcuts on my android desktop First of all, I have a 72 × 72 icon, I load the b…… -
Android – no intention to delete / replace
I set the alarm clock when I click the button The alarm is triggered by intent This intention gets an additional "int"…… -
Android – show ProgressDialog questions in nested tag activities
I have nested tag activities Tabmain (tabhost), I have childtab (another tabhost) and two other activities I can displ…… -
Java – returns the primary activity from any activity on the Android application
I'm developing an Android application with an action bar and a dashboard When the user clicks the "application logo" b…… -
Java – how to draw a border around MapView
I try to draw margins around MapView when I click a button So that's what I've tried. It doesn't work. MapView is in a…… -
Android – how to specify different layout sizes for different densities
Can you tell me how to specify the layout size of different density screens? That is, the layout of different densitie…… -
Java – how to add the final integer variable?
Eclipse is providing final, but I can't add the I variable @Override public void onClick(View v) { final TextView …… -
Android – use onbackpressed() with backward compatibility
I want to use onbackpressed() method. I still hope to provide support for Android SDK before 2.0. Onbackpressed() was …… -
Android – rxjava2 converts flowable to single
How to convert flowable to single? Or, if there is another way to make it stop emitting light after the first response…… -
What is KTX (kotlin extension library) and why is it becoming more and more popular in Android development
How to start with KTX for Android? resolvent: Android KTX - a set of extensions designed to make Android kotlin code w……