The road to Android development and learning-Experience of Camera
As the name suggests, Camera is a function for taking pictures and recording videos. If you want to take a photo and upload it, you can use camera to take a photo, store the photo, and send it to your friends. In this case, the app is not directly implem
Full Analysis of Android barcode recognition software developmentA major feature of Android is that it can identify the bar code to get a URL that can be directly accessed and downloaded.
Functions undoubtedly provide great convenience for users.
Therefore, it is necessary to develop bar code recognition software on
Many developers want to use the program to call the camera and process the photos they have taken. First, preview the program.
First, design the Home Page. It is very simple, just adding a button and an image.
The next step is to process the button event. When you press the button, the local camera will be called.
// Ima
radar map, so forget, is a complementary bar. Usually the article is also written less, so it may be a bit messy, there is nothing to improve the local welcome to give advice, greatly appreciated. : 2. Step: Initialize View property initialization ... Read the originalandroid image size, memory footprint and drawable folder relationship AnalysisOften a friend asked me this question: "Can an app only provide a set of graphs to adapt to all the resolut
SummaryFirst, in the Android system, each gesture interaction is executed in the following order. 1. A MotionEvent event is triggered when you touch the screen. 2. The event is monitored by OnTouchListener and the MotionEvent object is obtained in the onTouch () method. 3. MotionEvent object forwarding through GestureDetector
First, in the Android system, each gesture interaction is executed in the foll
The calling process of camera in android can be divided into the following layers:Package-> framework-> JNI-> camera (CPP) -- (binder) --> cameraservice-> camera Hal-> camera driver
Take the photo taking process as an example:1. After each parameter is set, after focusing is
Android Camera Samsung BUG:The recent use of the camera feature in Android projects, other models of mobile phones have been successful, but only in Samsung's camera encountered a bug.The bug is reflected as follows:(1) Image data
Android Technology--View switch (i) ~ (iv) Project source code: Https://github.com/YongYuIT/MeiNv_LiulanqiThe above "Android technology-view switch (three)" Implementation of the image switch, although the switch is animated, but you need to use a button to switch. In this example, you will try to use gesture recognition
Android multimedia-System camera
To take a photo with a system camera and return the photo, follow these steps:[1] Permission
[2] Start the camera with intent
Intent intent = new Intent (); intent. setAction (MediaStore. ACTION_IMAGE_CAPTURE); // implicitly start the System
integrate with the camera view transformation.
Note: It is generally meaningless to apply the projection transformation only to the object to be drawn. In general, you must also apply the camera view transform as well. This allows the object to be rendered on the screen.
Defining the Camera ViewCompleting the conversion of the
In many cases, the android camera module not only previews, but also takes photos easily. Instead, it needs to be able to detect videos, such as the most common face detection. Before you press the photo button, you can detect the face, mark it in a rectangle, and then press the photo button. So how to get a preview frame video?
You only need to inherit the previewcallback interface in the activity. Example
These two days playing Android games, the blog has not added something for several days, ashamed! Take a look at one of the most collapsing problems of the two days.
Good early installed the development environment, really started or these two days, very unfamiliar, although there are SDK documentation, so many mosquito-like word, really do not mind to study slowly. This does not want to call the camera, t
Recently, the viewflipper class was used in the project. It seems that the effect is really amazing. Today I tried to do it myself. It is really good.
First, define viewflipper. XML in layout.
Viewflipper contains five images for gesture switching.
Public class viewflipperactivity extends activity implements ontouchlistener, android. view. gesturedetector. ongesturelistener {private viewflipper Flipper; listener; private int mcurrentlayoutstate; Pri
This article illustrates the Android triangle on Glsurfaceview based on OpenGL and the use of projection and camera view methods. Share to everyone for your reference, specific as follows:
Defining triangles
OpenGL allows us to use three-dimensional coordinates to define an object. Before we draw a triangle, we need to define the coordinates of its various points. We typically use arrays to store the coor
One in Android, the ACTION that corresponds to the photo is Android.provider.MediaStore.ACTION_IMAGE_CAPTURE. The activity used for taking pictures needs to return the photo image data,The ACTION that corresponds to the camera is Android.provider.MediaStore.ACTION_VIDEO_CAPTURETherefore, you need to use Startactivityforresult () to start the Activity. The code is
Android It does not provide a clear effect like the input box to iOS comes with (iOS simply adds attributes to achieve). So, Android where we want to implement it requires this effect to be implemented with your own defined controls.Idea: Be able to use a linearlayout inside a horizontal layout with a edittext and a deleted picture. Listen for focus and text changes in the input box, set the explicit and cl
the touch screen is touched, that is, touch events (touching and stroking two events, pretty image). @Override public boolean OnTouch (View V,Motionevent event) {detector.ontouchevent (event); return true;} Called when the action is pressed @Override public boolean ondown (Motionevent e) {return false;} Called @Override public boolean onfling (Motionevent E1, motionevent E2, float Velocityx, float velocityy) when throwing an action {//velocit YX r
Android audio and video goes deep into the 16 FFmpeg streaming mobile phone camera to achieve live broadcast (with source code download), androidffmpeg
Source Code addressHttps://github.com/979451341/RtmpCamera/tree/masterAfter configuring the RMTP server, paste it here.1. Configure the RTMP Server
I don't want to post two blogs on mac and windows respectively.Set up an RTMP server on MACHttps://www.jianshu
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