camera timer android

In Android 5.0 (SDK 21), Google uses Camera2 instead of the camera interface. Camera2 has made great changes in interface and architecture,But for well-known reasons, we also have to develop based on the Android 4.+ system. This article describes the development of the camera interface and how to use it, through this a

1.Use surfaceviewControl to display the captured image of the camera Android: layout_width = "fill_parent"Android: layout_height = "240dip"Android: Id = "@ + ID/surfaceview"/> 2.Details /*Obtain surfaceviewControl */ SurfaceviewSurfaceview = (surfaceview) This. findviewbyid (R. Id. surfaceview ); /*Set resolution */ S

Objective: To use timer for timing, it is required to run in the service and record data every 10 minutes. However, after using timer, we found that the number of statistics did not reach the expected goal. Not even running. The following are the test cases: 1. Set the cycle time to 2 seconds to see the test results. I plan to use the service for testing, but I will use the activity for testing for convenie

the DSP or encoding library and converted to a specific image file format for storage. The optical lens of a digital camera is the same as that of a traditional camera. It aggregates an image to a photosensitive device, that is, an optical charge coupler (CCD ). CCD replaces the position of the photosensitive film in traditional cameras. Its function is to convert optical signals into electrical signals, w

Reference: Http://blog.sina.com.cn/s/blog_7dbac1250101mloj.html uses the gravity sensing method has realized to realize the Android camera autofocus, is not difficult, But it will take a bit of effort to achieve automatic, continuous autofocus. This is where my research ideas and solutions are recorded. To achieve auto-focus, the method is as follows:First : The most common implementation---use a button or

. getPackageManager (). hasSystemFeature (PackageManager. FEATURE_CAMERA )){ // This device has a camera Return true; } Else { // No camera on this device Return false; } } Android devices can have multiple Camera, such as Camera on the back of photography and

) { = focusmodelist.get (i) ; LOG.I ("Focus_mode", String.Format ("Camera focusmode=%s", Focusmode));}The output on my phone is as follows:Camera focusmode=autocamera focusmode=Infinitycamera focusmode=Macrocamera Focusmode= continuous-videocamera focusmode=continuous-picturecamera focusmode=manualThese few words are not complex, for mobile short video recording, the focus mode used should be continuous-video. This mode automatically focuses on

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 way to explore Android camera-StartCamera in the mobile phone has a pivotal position, whether it is two-dimensional code or photos, recognition, can not be separated from the camera, this article will be the Android camera in a comprehensive analysis.Permission Town Buil

. Parameters params = mCamera. getParameters ();// Set the focus modeParams. setFocusMode (Camera. Parameters. FOCUS_MODE_AUTO );// Set Camera parametersMCamera. setParameters (params ); This method is effective for most camera features, and most parameters can be changed at any time. changes to parameters are usually immediately displayed in the app's

Original: Android Camera2 photo (iii)--toggle camera, time lapse and flash mode First, switch the cameraTo switch between the front and rear cameras, you first need to close the previously opened camera, turn off preview, then reopen the new camera and reopen preview.public void Switchcamera () { if (mcamera

Button Btnstop=null; Private TextView Tvshow=null; Private String info= ""; Private Timer Timer=null; @Override protected void OnCreate (Bundle savedinstancestate) { Super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); btnclick= (Button) Findviewbyid (R.id.btn_click); btnstop= (Button) Findviewbyid (r.id.btn_stop); tvshow= (TextView) Findviewbyid (r.id.tv_show);

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. app.

Android. Graphics. camera can perform complex operations on images, such as rotating and blooming, and skews images with matrix. In my summary, some differences between camera and matrix are as follows: The rotate () method of camera is to specify the Rotation Angle of a dimension. The rotate () method of matrix ac

execute a task repeatedly, the scheduled execution time for each execution of the task changes with the actual execution time of the previous one, that is, scheduledexecutiontime (n+1) = Realexecutiontime (nth time) +periodtime. That is, if the nth execution of a task, for some reason the execution time is too long, after the execution of the Systemcurrenttime>=scheduledexecutiontime (n+1), then do not wait for a moment, immediately execute the n+ 1 tasks, and the next n+2 task Scheduledexecuti

naturally executes in thread will stop running. When the application enters the foreground again, the suspended thread is restored.Also need to note, look at the codeDispatch_async (Dispatch_get_global_queue (dispatch_queue_priority_default, 0), ^{ NSLog (@"async ....") ); *runloop = [Nsrunloop currentrunloop]; = [Nstimer timerwithtimeinterval:1.0 target:self selector: @selector (test) Userinfo:nil Repeats:yes]; [Runloop Addtimer:timer formode:nsrunloopcommonmodes]

that the task is executed every time of the specified period in milliseconds. Timer. schedule (task, firstTime, period); // delay is of the long TYPE: delay is executed once in milliseconds from now on. Timer. schedule (task, delay); // The value of delay is long and the period is long. From now on, after delay is milliseconds, it is executed every second in the period.

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 Mcurrentphotofile 2. Custom Launch

1. Set the camera direction 2. Open the thread and preview thread 3. Set Parameters 4. Camera peripheral buttons 5. Auto Focus and touch focus 6. Take a photo 7. Face Detection 8. Location Management 9. rotation Management 10. Zoom 11. Video The architecture of camera is a typical C/S architecture. The client side and user behavior are the functions of applica

. setOutputFile (lastFileName ); Try { // Prepare for recording Mediarecorder. prepare (); // Start recording Mediarecorder. start (); } Catch (IllegalStateException e ){ // TODO Auto-generated catch block E. printStackTrace (); } Catch (IOException e ){ // TODO Auto-generated catch block E. printStackTrace (); } End Shooting: If (mediarecorder! = Null ){ // Stop Mediarecorder. stop (); Mediarecorder. release (); Mediarecorder = null; } Paste my own encapsulation class:Copy codeThe Code is as fo