Are you ready for the Galaxy S20? Here is everything we know so far! Search titles only Newer Than: Search this thread only Search this forum only Display results as threads. Useful Searches. Your name or email address: Password: Forgot your password? Android Forums. What's the difference between 'armeabi' and 'armeabi-v7a'? As far as I know, in source code directory of an Android Studio project, the sub-folder 'armeabi-v7a' of jniLibs is for bit.
But sometimes we will find the sub-folder named with 'armeabi' other than 'armeabi-v7a'. Is armeabi the same as armeabi-v7a? Thank you all in advance. Similar Threads - What's difference between. What is this icon like a heart? Replies: 3 Views: MoodyBlues Apr 13, at PM. MrJavi Apr 11, at PM. What app has this notification? Replies: 2 Views: Replies: 9 Views: Gary Johnsonn Apr 13, at PM.Although you should build a single APK to support all your target devices whenever possible, that might result in a very large APK due to files needed to support multiple screen densities or Application Binary Interfaces ABIs.
This page describes how to configure your build to generate multiple APKs. If you need to create different versions of your app that are not based on screen density or ABI, you can instead use build variants. To configure your build for multiple APKs, add a splits block to your module-level build. To create separate APKs for different screen densities, add a density block inside your splits block.
In your density block, provide a list of desired screen densities and compatible screen sizes. The following example generates a separate APK for each screen density listed in Range of screens supportedexcept ldpixxhdpiand xxxhdpi.
This is done by using exclude to remove three densities from the default list of all densities. For a list of density names and screen size names, see How to Support Multiple Screens. For more details on distributing your app to specific screen types and devices, see Distributing to Specific Screens. In your abi block, provide a list of desired ABIs. Android Plugin for Gradle 3. If not, you may want to omit them from your build. To resolve this issue, either update to the latest version of the pluginor, in your app's build.
The Active Build Variant value for the module determines the build variant that will be deployed and is visible in the editor.
To switch between variants, click the Active Build Variant cell for a module and choose the desired variant from the list field. A new sync automatically runs. Changing either column for an app or library module will apply the change to all dependent rows.
By default, when Gradle generates multiple APKs, each APK will have the same version information, as specified in the module-level build. You can configure your module-level build. By creating a mapping that assigns a unique numeric value for each ABI and density you configure multiple APKs for, you can override the output version code with a value that combines the version code defined within the defaultConfig or productFlavors block with the numeric value assigned to the density or ABI.
Assigning version codes in large increments, such asallows you to later assign unique version codes if you need to update your app. For example, if defaultConfig. The sample code below handles this by not overriding a universal APK's default versionCode. For more examples of alternate version code schemes, see Assigning version codes. Once you configure your module-level build.
For example, the following build. Content and code samples on this page are subject to the licenses described in the Content License.The main drivers for Android developers to include native libraries are:. Note: The process of building a native library is not covered in this article. Head to the Android NDK site for the tools and information you need to build native libraries for Android. Including native libraries in your app results in you losing the write once, run anywhere benefit.
Figure 1 shows a summary of the pros and cons of using native libraries:. Figure 1: Pros and cons of using a native library. Different Android devices use different CPU architectures, which in turn support different instruction sets.
If you build with native code you need to compile that native code for each ABI that your app supports. In figure 2, below, you can see each ABI supported along with example devices. Building a shared native library can provide significant performance increases compared with implementing the same algorithm in Java.
Building ABI-Specific APKs
During some basic testing to compare some similar algorithms in native code compared to Java, I found the result ranged from double to a 20 times performance increase, however it should be noted these algorithms were heavy image manipulation processing. On less intensive use cases there will be little, if any, performance benefit. Figure 3: Native library performance benefits. For more information take a look at how to set your build. When including native libraries you have to make a decision if you are going to ship with native libraries specifically targeting the 64 bit ABIs.
Up until the start of this was an easy decision as 64 bit devices were only just hitting the market. Note: It is not mandatory to build 64 bit libraries to support 64 bit Android devices.Ucrm adding clients
During sales of 64 bit Android devices could overtake those of 32 bit devices in some markets. If you provide native libraries specifically for 64 bit devices you should see a small performance increase with these new devices.Fake dutch bros stamp
While I have not been able to source official figures for sales figures of devices running each architecture, the breakdown is pretty clear through casual observation. ARM architectures dominate the Android device marketplace. There is a small percentage of x86 devices and virtually no MIPS devices.
When uploading an app to the Play Store feedback is shown with regards to the number of devices that are able to run your APK. Here is an example of the results:. Figure 5: Play store reported supported devices. Notice in the table shown in Figure 5 that uploading an APK with armeabi native code will target 12 more devices than uploading an APK containing armeabi-v7a native code. The reason for this is that all devices running the armeabi-v7a are also able to execute the armeabi native code.Ultimix vip
The best place to learn about this is by reading the Android documentation about Multiple APK support. It should be noted that generally using multiple APKs to target different device configurations is discouraged. Here is what the official documentation has to say:. Note: You should generally use multiple APKs to support different device configurations only when your APK is too large greater than 50MB due to the alternative resources needed for different device configurations.
Using a single APK to support different configurations is always the best practice, because it makes the path for application updates simple and clear for users and also makes your life simpler by avoiding development and publishing complexity.
It is possible to visually inspect the contents of any APK; remember that an APK is just a standard zip archive, so opening this archive you should find your native libraries in the folders for the ABIs you are targeting.
So far I did not see differences in testing with either machines. I got the speed difference but can we trust X86 to give us the real and same behavior as real devices? I believe Nougat was the newest I could see. However, I am not sure if this was because of other selections. Install an image for it :. I was trying to get an initial environment to see where the crashes might happen.
For me it worked out with the faster x86 AVDs. I was a bit reluctant as well because it is for sure a different tool chain. At day 's end I would not bet on final results before I have not tested on device anyway.
However, solving the issues first on x86 and go afterwards for arm seem to be safe. What is the correct way of creating an AVD, please? I mean, I created two ones using Android studio but they're not shown on the list of Qt Creator when I run the app. Below image. Go to Create Virtual Device.
Select one you like and press next. You will see download suggestions, but you have to go to "Other Images".How to Flash samsung s5 replica 5 inch sm g9006v Clone mt6572
But none is shown when running the app. Do not know. I have installed Android Studio on standard path. There was no further fuzz. Under "devices" tab "Devices" I have this:. Yet, no success! Did you restart creator?
Sometimes this last resort heals together with an old fashioned reboot everything. Qt Forum.This document explains the Application. The Application. Table 1. You can also specify multiple values by placing them on the same line, delimited by spaces.
For example:. Flags to be passed to the assembler for every assembly source file. S files in the project. By default, ndk-build assumes that the Android. To load an Android.
An explicit list of modules to build. By default, ndk-build will build all shared libraries, executables, and their dependencies. Define this optional variable as either release or debug. Release binaries will be built by default. Release mode enables optimizations and may produce binaries that are not usable with a debugger. Debug mode disables optimizations so that debuggers may be used. Note that you can debug either release or debug binaries.
Release binaries, however, provide less information during debugging. For example, variables may be optimized out, preventing inspection. Also, code re-ordering can make it more difficult to step through the code; stack traces may not be reliable.
For example, a value of android specifies that your library uses APIs that are not available below Android 4. When using Gradle and externalNativeBuildthis parameter should not be set directly. Instead, set the minSdkVersion property in the defaultConfig or productFlavors blocks of your module-level build. This makes sure your library is used only by apps installed on devices running an adequate version of Android.
The system STL is used by default. The argument to be passed to strip for modules in this application. Defaults to --strip-unneeded. To avoid stripping all binaries in the module, set to none. For other strip modes, see the strip documentation. Set to true to use thin archives for all static libraries in the project. Path to the wrap.Different Android devices use different CPUs, which in turn support different instruction sets.
An ABI includes the following information:. Table 1.Qmk layout editor
ABIs and supported instruction sets. The Android variant includes Thumb-2 and the VFP hardware floating point instructions, specifically VFPv3-D16, which includes 16 dedicated bit floating point registers. Arm also offers some porting advice in bit Android Development. On Android, the platform-specific x18 register is reserved for ShadowCallStack and should not be touched by your code.
Current versions of Clang default to using the -ffixed-x18 option on Android, so unless you have hand-written assembler or a very old compiler you shouldn't need to worry about this. Characteristics of this ABI include:.
The generated code is an optimization balanced across the top Intel bit CPUs. For more information on compiler flags, particularly related to performance optimization, refer to GCC x86 performance hints. You can still use these extensions, as long as you use runtime feature-probing to enable them, and provide fallbacks for devices that do not support them. The NDK toolchain assumes byte stack alignment before a function call. The default tools and options enforce this rule.
If you are writing assembly code, you must make sure to maintain stack alignment, and ensure that other compilers also obey this rule. These flags target the x instruction set, according to the GCC documentation. For more information on compiler flags, particularly related to performance optimization, refer to GCC x86 Performance.
You can still use these extensions, as long as you use runtime feature probing to enable them, and provide fallbacks for devices that do not support them. Gradle whether used via Android Studio or from the command line builds for all non-deprecated ABIs by default.
To restrict the set of ABIs that your application supports, use abiFilters. For example, to build for only bit ABIs, set the following configuration in your build. For example:. A fat APK is significantly larger than one containing only the binaries for a single ABI; the tradeoff is gaining wider compatibility, but at the expense of a larger APK. It is strongly recommended that you take advantage of either App Bundles or APK Splits to reduce the size of your APKs while still maintaining maximum device compatibility.
At installation time, the package manager unpacks only the most appropriate machine code for the target device. For details, see Automatic extraction of native code at install time. Since APK files are just zip files, it is trivial to open them and confirm that the shared native libraries are where they belong. If the system does not find the native shared libraries where it expects them, it cannot use them.
In such a case, the app itself has to copy the libraries over, and then perform dlopen. For example, a fat APK may contain:.
Note: ARMv7-based Android devices running 4. This issue is fixed from 4. The Android system knows at runtime which ABI s it supports, because build-specific system properties indicate:.Noobie question, which apk I am supposed to upload to Google Play Store? I thought I had to add every variance generated but I can only add one file so Maybe I'm missing something.
I know there's a "universal" version, am I supposed to upload that file? How is Google Play going to know there were more version from the same apk! Error: 39, 0 Ambiguous method overloading for method java. Integer plus. Cannot resolve which method to invoke for [null] due to overlapping prototypes between: [class java.
Character] [class java. String] [class java. Number] Open File. Skip to content. Instantly share code, notes, and snippets. Code Revisions 4 Stars 38 Forks Embed What would you like to do? Embed Embed this gist in your website. Share Copy sharable link for this gist. Learn more about clone URLs. Download ZIP. This comment has been minimized. Sign in to view.
Copy link Quote reply. The error was because my versionCode versionName "1. I moved it to the defaultConfig and it fixed it. Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.
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