native

问题 Here is my build.gradle: apply plugin: "com.android.application" import com.android.build.OutputFile /** * The react.gradle file registers a task for each build variant (e.g. bundleDebugJsAndAssets * and bundleReleaseJsAndAssets). * These basically call `react-native bundle` with the correct arguments during the Android build * cycle. By default, bundleDebugJsAndAssets is skipped, as in debug/dev mode we prefer to load the * bundle directly from the development server. Below you can see all

问题 Is it possible to use the native compass that iOS has within my own application? Or do I need to draw and animate my own compass? 回答1: There is no native compass UIView . In order to use the magnetometer, you'll have to use CoreLocation and the following delegate method: - (void) locationManager:(CLLocationManager *)manager didUpdateHeading:(CLHeading *)newHeading to rotate a UIView to point North (bearingView is a UIImageView): float heading = newHeading.magneticHeading; //in degrees float

问题 Do you know a soft which automatically generates C# code (with [DllImport] attributes in .cs) from a native DLL in order to use this DLL in a C# code? 回答1: Checkout the P/Invoke Interop Assistant: In marshalling, there are a bunch of attributes and rules. Understanding all those attributes and rules seem a bit daunting. In order to make developing work more efficient and easier on those attributes and the rules, P/Invoke Interop Assistant comes out. It is a toolkit that helps developers to

问题 When running a UWP project I'm working on I receive the following dialog. "Unable to activate Windows Store app 'MyAppsMangledName'. The 'MyExeName' process started, but the activation request failed with error 'The App didn't start'." The Visual Studio output has the following. The thread 0x3d4c has exited with code -1073741515 (0xc0000135). The thread 0x3b50 has exited with code -1073741515 (0xc0000135). The program 'MyExeName' has exited with code -1073741515 (0xc0000135) 'A dependent dll

问题 I was wondering if it's possible to package my native .so files into my .aar file? If so, where would the .so files go and are there any references that I can read in regards to this? 回答1: If you put it manually, then it should be placed underneath jni/<platform>/libexample.so where platform is a target CPU platform like "armeabi", "x86" etc. Typically you will have so-files for multiple platforms there. If you build from source code using Gradle you could simply put your native source code

问题 I realize the benefits of bytecode vs. native code (portability). But say you always know that your code will run on a x86 architecture, why not then compile for x86 and get the performance benefit? Note that I am assuming there is a performance gain to native code compilation. Some folks have answered that there could in fact be no gain which is news to me.. 回答1: Because the performance gain (if any) is not worth the trouble. Also, garbage collection is very important for performance.

问题 I've searched for a tutorial/an answer on polling accelerometer faster with NDK but didnt find solver yet. just found an androiddevelopers documentation here. what i need is polling acceleration about 100 samples per second (100Hz), by default my device (Samsung Galaxy SL i9003 with gingerbread 2.3.5) with default SENSOR_DELAY_FASTEST can only get about 60 samples persecond (60Hz). Therefore i tried to access sensor via NativeActivity with NDK by generating .c files that i try to make based

问题 I'm trying to improve the performance of a javascript snippet evaluator . These script snippets can reference any number of variables that exist in a string-keyed map of json-like object graphs (IE: Json AST). I'm using JDK 1.6 and the embedded Rhinoscript engine (v1.6R2). Currently, processing takes the form: Snippet is parsed to discover the names of referenced variables Variables are retrieved from the map and serialized to a json string Json string is assigned to a similarly named

问题 I am adapting my resolution switching work for Vidcaster on VideoJS into a plugin (see https://github.com/videojs/video.js/pull/233). In VideoJS 3.2 the VideoJS controls were active on mobile platforms such as Android and iOS. Now when I boot up version 4 it appears the native controls take precedence. This means that features that require actions on control bar buttons such as tracks, etc are not accessible, correct? We would like to continue to present a resolution switching button to our

问题 I have build a pretty nice little app using Adobe Air Mobile (FlashBuilder) and Android Native Extensions (ANE). I would like to incorporate the Jayspt encryption library with my ANE but I can't seem to find any documentation telling how to do it. If I do the standard ADT export to jar for the ANE build, it doesn't include the jayspt jar. Does anyone know how (spell it out for me) to include another jar in the ANE? Thanks, FB 回答1: Firstly make sure you're using AIR 4.0+ to package. Earlier