android camera api tutorial

These days I took part in a company-run programming marathon, and I intend to use the Android camera to do it. I've always thought that the Android API was bad, but it didn't say exactly what was bad or how it would be better to improve. Take this opportunity and I'll explain it now. I think Android's

This article is mainly about: using the camera API to capture video data and save to a file, using Surfaceview, Textureview to preview the Camera data, take the NV21 data callback.Note: Requires permission:First, preview the Camera dataPeople who have done Android developmen

In the past 2 months, the basic requirements of the project have been basically customized and evaluated, which revolves around the A31 and Android4.2.2. Recently, due to the need, in the framework of modifying his camera, the application needs to give Hal a parameter to control the implementation of the underlying image processing algorithm, that is, to provide a reasonable API for the development and use

, data); if (requestcode==10) {Toast.maketext (this, "photo successful", 0). Show (); }if (requestcode==20) {Toast.maketext (this, "camera success", 0). Show (); }} public void video (View v) {Intent Intent = new Intent (); Intent.setaction (mediastore.action_video_capture); Intent.putextra (Mediastore.extra_output, Uri.fromfile (New File (Environment.getexternalstoragedirectory (), " HAHA.3GP "))); Intent.putextra (mediastore.extra_

Since basically all Android phones support images with a ratio of 4:3 and 16:9, sometimes the custom Surfaceview size does not meet these two proportions and will deform.Another situation is that the default previewsize and the ratio of our view will also cause deformation; the solution is from params.getsupportedpreviewsizes () Choose the appropriate proportions and then params.setpreviewsize (), at which point the size of the preview is set, and the

Basic tutorial for Android-9.3 using CameraBasic tutorial for Android-9.3 using Camera Tags (separated by spaces): basic Android tutorial This section introduces This section introduc

the mobile phone has been moved, and thus achieve continuous focus. Image recognition This method I do not have any suggestions, I also can not play so high force lattice of things, there will be an article by combining the second and third to achieve continuous autofocus, the effect is passable.Finally, there are two settings that may be useful for short videos.Turn on HDR:if (Parameters.getsupportedscenemodes (). Contains (Camera.Parameters.SCENE_MODE_HDR)) { Parameters.setscenemode (

Https://github.com/saki4510t/UVCCameraUvccamera listen to the name to know the Common class library using the UVC (USB vedio Class) protocol. Linux native support with basic support for all free-zone USB cameras on the market. This open source library contains a library of JNI and Android-encapsulated classes. is currently the best use of the Android USB Camera c

Instrumentationtestrunner to run test cases. Instrumentation Android's instrumentation offers some "hooks" to connect to the Android operating system, independently controlling the lifecycle of the Android component (Activity,service, etc.) and controlling how Android invokes an application. Under normal circumstances (ordinary

Build the android development environment once and for all (download all the reference sample api tutorial on the android official website) and androidtutorial 【Abstract】 This article briefly introduces the establishment of the android development environment, focuses on SDK

Google Maps API V2 Android mobile phone development in China does not support Google Play service problems-graphic tutorial The use of Google Maps in China is a headache and troublesome. I cannot understand why Google cannot be used as a map of Baidu. Note: you can download a few APK packages on the market and then use the Google service after re-installation (th

_getSurfaceTexture(){return mSurface;}@Overridepublic void onFrameAvailable(SurfaceTexture surfaceTexture) {// TODO Auto-generated method stubLog.i(TAG, "onFrameAvailable...");this.requestRender();}}This class is briefly described as follows: 1. The Renderer interface has three callbacks: onSurfaceCreated () onSurfaceChanged () onDrawFrame (). The GLSurfaceView version is set in onSurfaceCreated: setEGLContextClientVersion (2 ); without this setting, nothing can be drawn, because

This article is the source of their own reading a bit summary, transfer Please specify the source thank you.Welcome to communicate with you. qq:1037701636 Email:gzzaigcn2[email protected]Software: System Source Android5.11. Historical progress of the camera module version number in Android system/** * All module versions From the definition of the camera version

Android Basics Getting Started tutorial--8.3.11 Paint API--colorfilter (color filter) (3-3)tags (space delimited): Android Basics Getting Started TutorialIntroduction to this section: Well, originally said not to write today, or write it, after all, rare idle ha ~, this section to bring you areColorfilter's th

Android Basics Getting Started tutorial--8.3.16 Canvas API details (Part 1)tags (space delimited): Android Basics Getting Started TutorialIntroduction to this section: We've spent 13 of bars explaining the most common APIs for the paint class in Android, and we'll start

Basic Android tutorial -- 8.3.15 Paint API -- Typeface (font)Basic Android tutorial -- 8.3.15 Paint API -- Typeface (font) Tags (separated by spaces): basic Android

Basic Android tutorial -- 8.3.16 Canvas API (Part 1)Basic Android tutorial -- 8.3.16 Canvas API (Part 1) Tags (separated by spaces): basic Android