mediastore

. oncreate (icicle );Setcontentview (R. layout. movie_view );Mvideoview = (videoview) findviewbyid (R. Id. surface_view );Uri uri = getintent (). getdata ();Mcurrent = getintent (). getintextra ("START", 0 );Makecursor ();Mvideoview. setonerrorlistener (this );Mvideoview. setoncompletionlistener (this );Mvideoview. setonpreparedlistener (this );Mvideoview. setvideouri (URI ); Mmediacontroller = new mediacontroller (this, false );Mmediacontroller. setprevnextlisteners (mnextlistener, mprevlistene

Android gets multiple recent photos from the album (get the photos stored by the camera) When you are working on a company project, you need to customize the grid view of the displayed photos to display the first 20 photos that you have taken with a recent camera. I checked the API provided by the system and did not find the path constant pointing directly to storing photos after taking photos with a camera. If anyone knows, please let me know. Thank you! The following is an example of my stupi

When you call a camera, you sometimes need to return an image. Sometimes, you do not need to return an image. Case 1,Call the camera in the app,Save the image to the specified directory., Returned to the app: PublicVoidStartintentforresult (){ Intent intent =NewIntent (mediastore. action_image_capture ); Intent. putextra (mediastore. extra_output, Uri. fromfile (mfile )); Startactivityfo

In a recent project, you need to find the URI of the image through the absolute path of the image, delete the image, and summarize the method for obtaining the URI. Android 4.1.3 systems are available. 1. Retrieve all image paths, traverse and compare to find the desired path, and retrieve the URI, which is less efficient. The MediaStore. MediaColumns. DATA Field stores the absolute path of the image, At last, mImageUri obtains the image URI. 1 Uri m

Call the camera program and add it to intent.Android. provider. mediastore. extra_outputParameter to set the image storage location. As follows: Java code String imagefilepath = environment. getexternalstoragedirectory (). getabsolutepath () + "/Myfavoritepicture.jpg "; File imagefile = new file (imagefilepath ); Uri imagefileuri = URI. fromfile (imagefile ); // URI imagefileuri = URI. parse ("file: // sdcard/myfavoritepicture.jpg "); Inte

Android practice simple tutorial-28th gun (Uri to String type instance), androiduri After reading the previous article, we can easily obtain the uri of the selected image. So how can we convert the obtained uri to a String address? Next we will study it through examples. The layout file is the same as the previous article (article 27), so we will not list it any more. Let's look at MainActivity. java: Package com. example. userphoto; import java. io. file; import android. app. activity; import

Main Program: Public class androcamera extends activity { Private Static final int image_capture = 0; Private button startbtn; Private URI imageuri; Private imageview; /** Called when the activity is first created.* Sets the content and gets the references* The basic widgets on the screen like* {@ Code button} or {@ link imageview}*/@ OverridePublic void oncreate (bundle savedinstancestate ){Super. oncreate (savedinstancestate );Setcontentview (R. layout. Main );Imageview = (imageview) fin

String [] projection = {mediastore. Images. Media. size, Mediastore. Images. Media. display_name }; Uri uri = mediastore. Images. thumbnails. getcontenturi ("external "); Cursor c = thumbnails. queryminithumbnails (getcontentresolver (), Uri, The code in the second line indicates the URI of the path for obtaining the sdcard. Uri uri =

Mainactivity code: Package COM. chen. test6; import Java. io. file; import Java. text. simpledateformat; import Java. util. date; import android. app. activity; import android. content. intent; import android.net. uri; import android. OS. bundle; import android. OS. environment; import android. provider. mediastore; import android. util. log; import android. view. view; import android. view. view. onclicklistener; import android. widget. button; impor

update the UI interface. After talking about this, you may think that the cloud is in the fog. Let's look at the actual example below.2. Implementation of the Image Library Function This program first scans all the folders containing images on the mobile phone, and finally selects the most picture folder, and displays the images in the folder using the GridView.1. layout File The layout file is quite simple, just like a GridView 2. MainActivity Package com. example. zhy_han

. Speaking of this, I will mention the method of analyzing the source code. If you have a little knowledge of the Android source code, you should know that the Android source code is very huge, therefore, the starting point of the analysis program can be roughly divided into two types: the first is to analyze the source code according to the operating procedures-applicable to programs with clear interface jump; the second is to analyze the program running logic based on the printed Log informati

: Uri mImageUri = MediaStore. images. media. EXTERNAL_CONTENT_URI; Log. I ("yanguoqi", "mImageUri =" + mImageUri. getPath (); ContentResolver mContentResolver = MainActivity. this. getContentResolver (); // only query jpeg image Cursor mCursor = mContentResolver. query (mImageUri, null, MediaStore. images. media. MIME_TYPE + "=? ", New String [] {" image/jpeg "}, Media