Android
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android – Dagger 2 Singleton vs Real Singleton
I want to use daggers in my project. 2. Dagger provides a good method to create singletons. I have some in the project…… -
Check Google play purchase from Java Server
I'm trying to verify the purchase using the Google play API. I'm buying a Buyid and I'm trying to get its status by ca…… -
Android – how to disable native toast messages
I am creating a remote application. One of the buttons on the remote control can adjust the volume up and down. I have…… -
Android – IOException when using loopj synchttpclient
I need to use loopj's synchttpclient in several areas. When I use asynchttpclient, the request returns successfully. W…… -
Delay in sending data from mobile app to Android wear
Invalid Sign I also try to use the report library for wearable. I can confirm that it is feasible at the mobile end, b…… -
Android – how to get image URI from Gallery
I need to get an image from the gallery. I can open the gallery to select an image, but it will not return anything af…… -
Android – rxjava observeon and subscribeon in Retrofit
Observeon: this method only changes the threads of all downstream operators（ https://medium.com/upday-devs/rxjava-sub…… -
Android – “dialog failed with unknown” error response. Facebook application invitation, switching in FB account
I made an error in my android Facebook app invitation. Everything is fine. I switched my account from Facebook and now…… -
Android – displays non on page ads after a certain number of clicks
I want to display the AdMob insert ad when the user clicks the button. But I don't want to display the ad every time t…… -
Android – what is the correct location for initializing class variables in kotlin
A: initialize the class variables in the init block private class ViewHolder(view: View) { val menuImg: ImageView …… -
Entity list relationship in Android room
I'm trying to load the entity sublist, but I want to avoid 2 queries I'm thinking about querying in TypeConverter, but…… -
Android – the node has not been attached to the view in ‘propsanimatednode. Updateview’
Sometimes I can see this message, but only in Android, I think it will appear every time an alarm is displayed Alert.a…… -
Android – how to get time if some conditions encounter gyroscope reading
Invalid Sign Example – if my phone is stationary, the gyro sensor will provide x = 0.0, y = 0.0, z = 0.0. If the readi…… -
Android – kotlin: sugar ORM insists @ ignoring attributes
In my Android application, I used kotlin with sugarorm. I encountered a problem trying to prevent some properties from…… -
Android – react native – touchableopacity cannot work in an absolutely positioned view
I have a view with absolute positioning. It has three touchableopacity components, but the three components can't resp…… -
Android – java.lang.stackoverflowerror: the stack size is 8MB, and textview#settextisselectable is enabled / disabled in the listview adapter
Invalid Sign Here is my code example. If I have any errors, please let me know import android.app.Activity; import and…… -
Java – torch / flashlight application (Android. Hardware. Camera is not recommended)
I have a torch / flashlight application that uses this code open params = camera.getParameters(); params.setFl…… -
Cardview non removable gray underline (Android 4.0.4 device)
In Android 4.0.4, my card view appears in the false gray underline near the bottom. I can't seem to get rid of it. I t…… -
Rxjava rx.exceptions.missingbackpressureexception with filter and mapping
I've just started using rxjava / rxandroid, and I have some questions to know how to deal with back pressure correctly…… -
Java – glsurfaceview using OpenGL es 3.1 context
I'm working with Android using OpenGL. I know how to use glsurfaceview and its custom derived classes to create an Ope…… -
Android – how to adjust the HTML / CSS layout of the browser in the instagram application?
I've been searching in Google, but I can't find the clue to my problem. I have a small website (HTML / CSS only), whic…… -
PHP – send a notification to Android immediately after an update occurs in the MySQL database
In my Android application, new users initially use the application to register themselves. If the user is approved by …… -
Android – event handler for closing / forcibly stopping applications
I am developing an ion application. I want to know if there are any event handlers for this situation when the applica…… -
Android – native script samplegroceries application failed to compile
I started learning native script and tried to follow the guide on the main site. But when I tried to compile the Hello…… -
Java – how do I know if the date is on the same day as another date
If I have two dates in Java (Android) (date1 and date2), how can I know if date2 is on the same day as date1? (Note: n…… -
Android – how to ensure that files are not tampered with from the phone to the server?
I want to create an Android application that collects information and uploads it to the server - but I don't want peop…… -
Android – kotlin view setenabled function missing?
In kotlin, when using kotlinx.android.synthetic to access a view (such as a button), the setenabled() function is miss…… -
Android – viewpager.how in viewpager scrolls the parent page converter horizontally instead of scrolling the child nodes, but keeps the child pager scrolling vertically?
I have a parent viewpager, where each page contains a child viewpager. The child viewpager may contain listview or ver…… -
How do I access all the tags on my google map object (Android maps V2) and set them to (visible)?
I am currently trying to implement an actionbar button to set all tags on my google map object to be visible or invisi…… -
Android: listview: get the cursor value of the item
I create a database and table (category) (_id, title,...) with columns. I want to read the category from DB and displa…… -
Android textview: text box control
Textview is a component used to display text on the interface. The displayed text cannot be edited directly by the use…… -
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……