Android
-
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…… -
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 – how to separate firestore listeners
I'm new to firestore. I created a listener registration to update my recycler view. I know my implementation may not b…… -
Android – how do I reduce the size of an image before uploading it to firebase storage?
I have made a social application for image and video sharing. However, it takes too much time to load images. I am usi…… -
Android – button opacity / transparency
In main.xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.c…… -
Why do we use JSON in Android?
I'm studying JSON. I realize how I use it and how it works. But I don't know why we use it in projects and programs. I…… -
Android – image button with @ null background (transparent) [copy]
See the English answer > how to set image button background image for different state? I have an image button with …… -
Can I use any Android phone for application development?
Can I use any Android phone for application development? In the Philippines, there are many Android phones installed. …… -
Android – loads an array of integers from XML
I have an array of integers in the XML file, as shown below <integer-array name="myArray"> <item>@draw…… -
Java – find the bounding box from a set of geopoints mapboxes
I'm trying to find the bounding box from the geopoints collection, but it doesn't scale correctly. I'm pasting the fun…… -
Android – Method setpriority (int) does not define notification type
Starting with Jerry bean, you can set priority for notifications. In this way, you can even set priority_ Min, this wi…… -
How to install Android applications repeatedly without uninstalling previous versions?
I'm working on an Android project. I have to install it many times to test it on the virtual device. But at the end of…… -
Android – EditText loses focus using the hard keyboard when tabhost exists in the activity
I display EditText in tabhost. Tabhost is located in sherlockfragmentactivity Suppose I am in touch mode, I click Edit…… -
Android syncadapter will not synchronize Samsung S6 edge plus nougat on my device (periodically when API < = 23)
I have a problem using syncadapter. The strangest thing about it is that it worked earlier, but now synchronization is…… -
Android – displays progress when downloading images from the server to ImageView
I'm listview and want to display the progress until the image is not downloaded from the server to ImageView using Pic…… -
Android – where do you store string values? In the strings.xml or constants class?
In Android, we can store string values in the strings.xml file or in some constant classes as static final variables. …… -
Android – duplicate background images are stretched
I have a difficult background texture. I have a 60px by 60px bitmap texture. I want to set it as the background of my …… -
Java – Android studio 2.3 error: “gradle sync failed: Reason: services. Gradle. Org”
After opening a new project in Android studio 2.3, I receive an error, such as: Google search just gave me a log file …… -
How do I exit AWS cognito – Android?
So this is the code I use to sign my user awareness (I hope I'm correct). Now, how do I exit? At present, I have my ow…… -
Java – app cannot load non on page ads on my real device
The test insert ads are running on my simulator. But they are not suitable for my real device There was a problem gett…… -
Android – change the position of the floating label text for textinputlayout
Floating label text appears at the edge of the EditText box. How to raise it above the predetermined level? My code: &…… -
Android – the file layoutlib.jar does not exist
I am using Android studio 1.5.1 and SDK manager to install each package required. I choose to use API 21 and install a…… -
Android – how best to pass messages from a fragment to its parent (onactivityresult equivalent)
OK, I know I may think about it in the wrong way, but A) I have activity a loading fragment F1 loading fragment F2. F2…… -
Android – recyclerview changes items when scrolling
Someone can explain to me, what's the problem? When I scroll down and back to the top, my item has been changed to ano…… -
Java – Android: what is the best HTTP library for uploading images to the server?
There are many libraries available, but which is better for image upload? Who knows which library instagram uses? I've…… -
Android – ondestroy() of the calling service
I want to make a phone call Service methods in Android I have searched a lot on the Internet, and many answers are lik…… -
Android – get the last row from SQLite database
I tried to get the last row from my SQLite database. Until now, I have tried max, SQL_ Sequence, but it doesn't seem t…… -
Android ratingbar: evaluation bar control
Ratingbar is an extension of seekbar and ProgressBar. It is an indirect subclass of ProgressBar. You can use ProgressB…… -
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…… -
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 – unable to generate signed APK – taskexecutionexception failed
I'm in the final step of making my application. When I try to build and generate a signed APK, I get this error log fr…… -
Android – implement recyclerview using a collapsed toolbar layout
I'm trying to implement recyclerview using the folding toolbar, but I'm facing a problem because recyclerview is up on……