camera upgrade for android

Implementation of a preemptive camera service, when some applications (such as flashlights) open camera in the background, when the camera app open camera can be occupied by the background app camera.1. Modify CameraService.cpp (frameworks/av/services/

This camera is not a camera in Android. the camera in the graphics package can be understood as the angle of view in the 2D graphics system, or the camera location. Based on the perspective principle, we can implement some simple 3D effects. You can refer to the rotate3danim

->time_base.den = fps;Video_st->codec = Pcodecctx;Video_st->codecpar->codec_tag = 0;Avcodec_parameters_from_context (Video_st->codecpar, pcodecctx);See if the output URL is valid and write to the file header based on the output formatif (avio_open(ofmt_ctx->pb, out_path, AVIO_FLAG_READ_WRITE) The next step is to process the data sent by camera.Convert data formatjbyte *in = env->GetByteArrayElements(buffer_, NULL);Get the cached picture size based on the encoder and create a cached picture space

);//requestcodeStartactivityforresult If you get the intent object right away many of the members are NULL } }); protected void onactivityresult (int requestcode, int resultcode, Intent data) { //TODO auto-generated method stub Super.onactivityresult (Requestcode, ResultCode, data); if (requestcode==intent_code_image_capture data! = NULL) { final ImageView Pimageview = (ImageView) Findviewbyid (R.ID.IMAGEVIEW1); Bundle pbundle = Data.getextras (); Gets the data from the intent object, if (pbund

Issue: Android Studio appears when compiling a project:Error: (12, 24) Warning: camera in [deprecation] android.hardware obsoleteFIX: (just let it not prompt)In the build.gradle of 1.app1 Android {2 ... 3 lintoptions { 4 false5 false6 7 }8 }2. Build.gradle in the root directoryallprojects { ... gradle.projectsevaluat

Recently in the development of the letter, found capture="Camera" >, Android can display cameras and documents, but iOS only has the camera option, and finally, by judging the device type, both iOS and Android can display the photo and gallery selection, The code is as follows:var u = navigator.useragent, app = Navigat

If you want to implement the ability to take photos in your own app, first add the permissions to the Androidmanifest.xml file:android:name= "Android.permission.CAMERA"/> The way to start the camera is very simple, with intent access to Mediastore.action_image_captureNew1);Once photographed and confirmed, the activity's Onactivityresult method is called, where the image data can be obtained.Onactivityresult (intint resultcode, Intent data) { if (

. Graphics, FMX. Dialogs, System.actions,8 FMX. Actnlist, FMX. Objects, FMX. Controls.presentation, Fmx.stdctrls,9 FMX. Medialibrary.actions, FMX. Stdactns;Ten One type ATForm1 =class(Tform) - Button1:tbutton; - Button2:tbutton; the Image1:timage; - actionlist1:tactionlist; -Takephotofromlibraryaction1:ttakephotofromlibraryaction;//manually added action -Takephotofromcameraaction1:ttakephotofromcameraaction;//manually added action + proceduretakephotofromlibraryaction1didfinishtaking (image

(mcursor.movetonext ()) {//print log to view the value of the photo id long id = mcursor.getlong (mcurso R.getcolumnindex (mediastore.images.media._id)); LOG.I ("mediastore.images.media_id=", ID + ""); Filter out unwanted images, just get pictures of photos stored in the photo album after the picture String path = mcursor.getstring (Mcursor.getcolumnindex (MEDIASTORE.IMAGES.MEDIA.D ATA)); if (Path.startswith (Sdcardpath + "/Dcim/100media ") | | Path.

/** * Test whether the current camera can be used * * @return * /Public static Boolean iscameracanuse () { Boolean canuse = true; Camera Mcamera = null; try { //TODO camera driver hangs up, processing?? Mcamera = Camera.open (); } catch (Exception e) { canuse = false; }

SetrecordinghintThis function is to improve the performance of Mediarecorder recording camera video.Problem:If this function is set to True, the preview screen on some phones is distorted, and there is no mention in the official Android documentThis change, the reason is unclear, for compatibility, had to comment out this function.Phones that are known to be faulty:MI 2, LG part phoneThen search this functi

boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu, this adds items to the action Bar If it is present. Getmenuinflater (). Inflate (R.menu.main, menu); return true; } @Override public boolean onoptionsitemselected (MenuItem Item) {//Handle Action Bar item clicks here. The action bar would//automatically handle clicks on the Home/up button, So long/As you specify a the parent activity in Androidmanifest.xml. int id = item.getitemid (); if (id = = r.id.act

("aspectX", 1); // The ratio of the cropping frame is 62 intent. putExtra ("aspectY", 1); 63 intent. putExtra ("outputX", crop); // the size of the output image is 64 intent. putExtra ("outputY", crop); 65 startActivityForResult (intent, PHOTO_PICKED_WITH_DATA); 66} 67 68 public void photo () {69 70 Intent intent = new Intent (MediaStore. ACTI Principal); 71 startActivityForResult (intent, CAMERA_WITH_DATA); 72} 73 74 protected void doCropPhoto (Bitmap data) {75 76 Intent intent = getCropImageI

Android Camera Real-Time Filter (5), androidcameraAndroid static filter implementation 1. Review knowledge point 1. Basic filter effect implementation (black and white filter) The technology used is ColorMatrix. The image imaging effect is changed by changing the RGBA coefficient. Created with Rapha rjl 2.1.2 Image Bitmap ColorMatei

In the Android app, very often we need to implement upload images, or directly call the camera on the phone to take photos processing and then directly display and upload the function, the following will be called the camera to take pictures of the image processing and then display and call the photo processing in the mobile phone register and then display the fu

Android phone has its own camera and graphics library, we do in the project is sometimes used to upload pictures to the server, today did a project to use this function, so put my code to write down and share with you, the first blog I hope that the great God a lot of criticism. First, the code that calls the Android photo album and

Camera focusing: in principle, the vertical seekbar is used to obtain the distance based on the user's drag, and then set it to Camera in the form of Parameter. OnSeekBarChangeListener /* * (Non-Javadoc) * * @ See * Android. widget. SeekBar. OnSeekBarChangeListener # onProgressChanged (android *. Widget. SeekBar

Call camera in Android to get pictures can be obtained in two ways, first of all by invoking system services to open the cameraIntent Intent = new Intent (mediastore.action_image_capture);Startactivityforresult (Intent,requestcode);The first method is to get the picture from the result returned by Startactivityforresult, as follows: if (RESULTCODE==RESULT_OK) { if (requestcode==req_1) { Bundle

. 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

Android mobile phones have their own cameras and libraries. Our projects sometimes use uploading images to the server. Today we have a project that uses this function, so I recorded my code and shared it with you. For the first time I wrote a blog, I hope you will criticize me a lot. First, the code for calling android album and camera is as follows: Copy codeThe