Download Camera Autofocus App For Android
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Android Camera API Tutorial
In this android tutorial we are going to learn about the android camera API. Camera is one of the numerous hardware devices that mobiles users use the most. The rising of selfie, photo sharing and location based image tagging have contributed to the huge rise of device camera usage.
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Starting from Android L (SDK version 21), android introduced a new Camera API called Camera.2 API. Although the Camera API before this version has been deprecated but it still works and we are going to focus this tutorial on this API.
If you want to read about the new android Camera.2 API, I will suggest you read my tutorial on this topic – Android Camera.2 API Tutorial.
There are two ways to access the device camera in our application
1. Using existing android camera application in our application
2. Directly using Camera API provided by android in our application
We are going to focus on the latter in this tutorial but if you want to learn how to use the existing android camera application in your application use the link.
In other to access the camera hardware resources of our device, we have to use the camera permission. We will also add a filter so that device that does not have camera will be excluded for downloading our app in the Google Play Store. The permission is listed below.
Before we start, the first thing I will do is to list the environment and tools I used in this android tutorial but feel free to use whatever environment or tools you are familiar with.
Windows 7
Android Studio
Samsung Galaxy Fame Lite
Min SDK 14
Target SDK 19
To create a new android application project, following the steps as stipulated below.
Go to File menu
Click on New menu
Click on Android Application
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Enter Project name: AndroidCameraAPITutorial
Package: com.inducesmile.androidcameraapitutorial
Keep other default selections.
Continue to click on next button until Finish button is active, then click on Finish Button
Once you are done with creating your project, make sure you change the package name if you did not use the same package.
Manifest.xml File
Since we are going to access and make use of some hardware resource in our device like camera, we are going to use some android permissions as stated earlier. The updated version of our Manifest .xml file is shown below.
We added some string to the string.xml file. The updated version of the file is shown below.
Now we will move ahead to design our application main layout. Since I created my project with the default activity, the activity_main.xml layout file is where I will put the application UI code.
Activity_main.xml
Open the activity_main.xml in your project or the layout name you want to use. We are going to add three different View controls in our layout file. The Views are as follow.
1. FlameLayout – This ViewGroup will hold the camera preview
2. Button – The button View will be used to capture the camera preview
3. ImageView – The ImageView will hold the captured image from the camera preview.
Add the following code in activity_main.xml
SurfaceView Class
For the camera preview, we are going to create a custom SurfaceView class which will attached to our FrameLayout as a child to the layout.
The class will implement SurfaceHolder.Callback and the three methods in this class are overridden. The overridden methods are shown below.
1. surfaceCreated(SurfaceHolder holder)
2. surfaceChanged(SurfaceHolder holder, int format, int width, int height)
3. surfaceDestroyed(SurfaceHolder holder)
We will initialize the Camera class. In the surfaceCreated(SurfaceHolder holder) method, the camera object is open and the camera preview started. In the surfaceDestroyed(SurfaceHolder holder) method, the camera preview is stopped and the camera object is released so that other applications can use the camera. The complete code is shown below.
MainActivty.java
In the MainActivity.java file, the instances of our View controls are obtained. The ImageSurfaceView object was created and passed as a child view to the FrameLayout object.
Download Camera Autofocus App For Android Pc
We created an inner class PictureCallback and override the onPictureTaken(byte[] data, Camera camera) method of the class.
A click event listener was attached to our button view. When the button is click it will execute the takePicture(null, null, pictureCallback) method of the Camera class. The object of the PictureCallback class is passed as one of the parameters required by the method.
Save the file and run your project. If everything works for you, the project will appear like this in your device.
You can download the code for this tutorial below. If you are having hard time downloading the tutorials, kindly contact me.
Android Camera API Tutorial
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In the past few years, manufacturers have started giving a lot of importance to the phone cameras. And, as a result, smartphones now have extremely good cameras. However, most of the native camera apps take pictures in the auto mode. These native camera apps don't allow users to play with the camera settings.
While smartphones can take amazing pictures in the auto mode, with manual controls you can take it to another level. Many third-party apps let you control the camera settings manually. You can adjust white-balance, ISO, shutter speed, exposure, etc. using these manual camera apps on your Android device.
Also Read:7 Incredible Photo Editing Tricks for Android That You Must KnowIn this post, we have hand-picked 7 amazing manual camera apps for Android. These apps put DSLR like manual controls at your fingertips.
1. Camera FV-5 Lite
If you are familiar with the DSLR settings, the Camera FV-5 Lite app provides a similar user interface (UI). You get all the necessary options on the first screen itself. Nothing is buried down in the settings.
With this app, you can control ISO, light metering mode, focus mode, and white balance. You can also create time lapses and time-controlled picture series. In addition to program and speed-priority modes, you can also set manual shutter speed and view live histogram.
The app also supports EXIF and XMP metadata. Further, you also get multiple focus modes like Autofocus, macro, touch-to-focus, and infinity focus modes. When it comes to quality, you can change the JPG compression quality and also save lossless PNG images.
If you want to assign camera functions to volume keys, the app also lets you do the same. When it comes to organization, the app makes sure you get all the things such as customizable file names, storage locations, file format etc.
Also Read:6 Best PicsArt Alternatives for AndroidAlthough you get all these features in the free app, the Lite version limits the resolution to 3.1MP. To unlock all the device resolutions and to enable RAW capture, you need to buy the premium variant that costs $3.
Download Camera FV-5 Lite2. Open Camera
Open Camera includes all the manual camera controls. It is an open source app where you get all the features for free. There are no in-app purchases or ads.
Open Camera offers almost all the Camera FV-5 Lite features. You get the basic controls like white balance, ISO, exposure compensation/lock, scene modes etc. Interestingly, you also get face detection.
Further, the app offers cool ways to capture photos such as by a voice command or some other sound such as a whistle. Similar to the FV-5 Lite app, you get configurable volume keys and the ability to choose where to save the images.
You can also add other things to your images like date, timestamp, and location coordinates. The app also supports timer, burst mode, HDR, and a widget that lets you take a photo with a single tap.
Download Open Camera3. Footej Camera
Unlike the other two apps, Footej Camera doesn’t provide too many manual controls. But, whatever it offers is present in a clean UI. However, to get that neat look, all the manual options are present under the three-dot menu icon making the process a bit longer.
Also Read:How to Reduce Netflix Data UsageFootej Camera supports exposure, timer, grids, multiple photos, and scenes. You can also create GIFs and slow-motion videos. In addition to that, the app also supports the RAW format and the ability to take a snapshot during video recording.
Download Footej Camera4. ProShot
If you are willing to pay some bucks, $3.84 to be precise, ProShot is a good choice. It offers extremely cool manual features making you feel like you are actually using a DSLR camera. Other than the usual controls like ISO, shutter speed, white balance, scenes, the app also offers the ability to shoot in RAW.
You can even choose resolution and aspect ratio modes. Along with the live histogram feature, the app also comes with a Light Painting mode with infinite shutter and live preview.
In addition to that, you also get JPEG quality control, noise reduction and manual focus assist in this app.
Download ProShot5. Camera360: Selfie Photo Editor with Funny Sticker
If you are looking for a manual camera for your front camera or for taking cool selfies, then Camera360 is the answer. You can apply live filters and effects to your photos using this app. Trust me, the Camera360 app contains a wide variety of effects and filters.
With this app, you can basically create a new person, thanks to the cool editing. You can change your eye size, whiten the teeth, and enhance your lips with this app. And once you are done, you can even add stickers.
Some of the other apps that you can use for awesome selfies are Retrica - Discover Yourself, BeautyPlus - Easy Photo Editor & Selfie Camera, and YouCam Perfect - Selfie Photo Editor.
Download Camera360: Selfie Photo Editor with Funny Sticker6. Manual Camera
Another paid app that provides superb manual control goes by the name Manual Camera (how convenient). It supports shutter speed, ISO, white balance, exposure compensation, and focus distance.
Not all devices support manual controls. Since it is a paid app, the developer wants you to run a compatibility test. You can download the app to check compatibility here.
Also Read:10 Useful Play Store App Tricks for Power UsersTo make changes, the app provides a rotating wheel, where you can adjust various settings. Like most of the other manual camera apps, it also supports the RAW format. You can even adjust grids, sounds, and timer.
Download Manual Camera7. Camera ZOOM FX – FREE
This app combines the best of the two worlds. Whether you are looking for manual controls or preset filters, the Camera Zoom FX app offers both. However, the only caveat is that you have to buy the premium version to unlock some of the manual controls.
The app lets you set ISO, exposure, shutter speed and actions for volume keys. You can also capture photos using voice. Besides 100’s of filters, the app also has a native collage maker.
Download Camera ZOOM FXUnleash Your Creativity
Download Camera Autofocus App For Android Iphone
Now that you have some great manual camera apps at your disposal, go out and surprise everyone with your creativity. If you are a newbie regarding manual controls, check this simple post about the manual camera controls and what they do.
However, do remember that the output of each camera app depends on the smartphone you are using and the way you use it. You need to experiment with these apps to find out the most suitable one for yourself and your device.
Also See#Android apps #cameraDid You Know
WhatsApp is one of the most downloaded Android apps.