spy camera app for android

The way to explore Android camera-StartCamera has a pivotal position in the mobile phone, whether it is a QR code or a photograph or a recognition. Can not be separated from the camera, this article will be a comprehensive analysis of the camera in Android.Permission Town Building:uses-permission android:name="android.

The following tool class is used to simplify and optimize the common Photo Taking methods to achieve no preview. Import java. io. file; import java. io. fileOutputStream; import java. io. IOException; import java. text. simpleDateFormat; import java. util. date; import android. annotation. suppressLint; import android. annotation. targetApi; import android.

);Onactivityresult:/** * 通过暂存路径取得图片 */nullnull;try { new FileInputStream(mFilePath); catch (FileNotFoundException e) { finally { ifnull) { try { fis.close(); catch (IOException e) { e.printStackTrace(); } }}So we can get a complete picture of the shot. After you can let the image display, display, the same need to consider the large image processing, to avoid the problem of image size, these things, please refer to here:http://blog.csdn.n

Android-implement custom camera countdown to take photos, android custom This blog introduces the Android custom camera and implements the countdown camera function. First, you can use the SurfaceView control to display the previe

Several projects have been developed recently, involving several development models of Android. For the original ecological development, Web application development and Mixed mode development, I think that is not what is the best, which is the worst, this is entirely based on their own needs, choose a suitable development model. They also have their own a bit, but also have their own shortcomings, we based on the actual situation, take the advantages,

Android cameraSeries Development (III): Taking photos through cameraapi Author: Rain csdn blog: http://blog.csdn.net/gobitan/ Overview There are two ways to use camera: using an existing app through intent and building your own app through camera. The intent method has been

Almost every app will use the camera function, the following small series to share the content of the cloud Habitat Community Platform for your reference, interested friends to study together! Two ways to start a camera 1. Direct Boot System camera Or specify a name to return the picture Mcurrentphotofi

Mainactivity. Java Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Package Com. Amaker. ch11.app; Import Java. Io. file; Import Java. Io. fileoutputstream; Import Java. Io. ioexception; Import Android. App. activity; Import Android. Graphics.

. camera; import android. app. activity; import android. graphics. bitmap; import android. graphics. camera; import android. graphics. matrix; import

Android Camera + SurfaceView for custom photos and androidsurfaceview Force a horizontal screen on the Activity to ensure that the preview direction is correct. Use OrientationEventListener to listen to the device direction. when determining whether a portrait is taken, rotate the photo and save it. This ensures that the preview image is in the same direction as the saved image. Running effect: Code: Test

The new camera API, also known as CAMERA2, was introduced in Android 5.0. In general, we use the old Android camera API, even though in Android studio always hints are obsolete, but as long as it is available, there is no need to write two sets of code separately in order to

()); Imageview IMG = (imageview) base3dimp. This. findviewbyid (R. Id. iv_base_3d );Int centerx = IMG. getwidth ()/2;Int centery = IMG. getheight ()/2; Bitmap BMP 1 = bitmap. createbitmap (BMP, 0, 0, BMP. getwidth (), BMP. getheight (), matrix, true );System. Out. println ("martrix1:" + matrix. tostring ()); IMG. setimagebitmap (BMP 1 ); }}); }} The above code is used to observe the implementation process of the rotation of your rotatey (degress) method. The following shows th

: outWidth / width; } // Now we will load the image and have BitmapFactory resize it for us. options.InSampleSize = inSampleSize; options.InJustDecodeBounds = false; Bitmap resizedBitmap = BitmapFactory.DecodeFile (fileName, options); return resizedBitmap;　　}} How to restore objects protected override void OnActivityResult (int requestCode, Result resultCode, Intent data){ base.OnActivityResult (requestCode, resultCode, data); // Make it available in t

, these xml files also store the two arrays of the map, but the advantage of doing so is that the data-driven programmer does not need to define N Arrays for N kinds of judgments only need to be based on the ID of the current switching scenario the map information is very convenient, and you can avoid mistakes in the code. However, no matter how data is processed, the rendering principle is the same. How to update the camera in the game : The

Android hardware learning-camera learning Android can't help but learn cameras. Now there are various kinds of beauty cameras and pictures in the circle of friends. Now, after the upgrade, you can pull down and take pictures,I can't help learning about Android without learning cameras. Now all kinds of beauty cameras a

the HAL layer, the HAL layer in the maintenance cache queue, when receiving the inverted take_picture command to obtain a frame cache data, for transcoding, and then take the normal picture of the process of using @link Android.hardware.Camera.PictureCallback notifies the application layer of the data being photographed. Android5.0 implementation for 2 steps and 3 steps are implemented in the application layer, the application layer at the start of the preview to the HAL layer to pass 2 surface

save the image file to the "sdcard/myImage/images" folder named "2017111.jpg"Copy codeThe Code is as follows: File file = new File ("/sdcard/myImage /");File. mkdirs (); // create a folderString fileName = "/sdcard/myImage/111.jpg ";Try {B = new FileOutputStream (fileName );Bitmap. compress (Bitmap. CompressFormat. JPEG, 100, B); // write data to a file} Catch (FileNotFoundException e ){E. printStackTrace ();} Finally {Try {B. flush ();B. close ();} Catch (IOException e ){E. printStackTrace ();

Release a cameraDevices are resources shared by applications on devices. your application can use it after obtaining the camera instance, and your application must be released after use, and when paused (Activity. onPause () should also be released. if your app does not properly release the camera, all subsequent operations that attempt to obtain the camera's rig

Android uses the binder mechanism to implement IPC, Binder communication is achieved with the help of Linux binder driver, two interprocess IPC feel like a process to enter another process to execute code, and locally can return the result of the remote function. Binder user space maintains an available thread pool for each process, the thread pool is used to process incoming call requests, including the requested message, and the remote response mess

Preview Data Preview Callback Android Camera Small System: Well...... Looking directly at the camera HAL layer, it is the main work that is typically done through IOCTL calls V4L2 Command① kernel data from camera Driver① in Linux preview. Then give it to surface (or overlay) to display or save as a file. At the HAL