Acquisition of local picture resources and video recording resources in Android

<span id="Label3"></p><p><p>Often used to the local image acquisition, as well as recording and so on, so a little tidy up a bit, the pattern is almost, we can refer to.<br>Here write the code piece package com.ly.day72_camera;</p></p><p><p>Import android.content.Intent;<br>Import android.database.Cursor;<br>Import android.graphics.Bitmap;<br>Import android.net.Uri;<br>Import android.os.Environment;<br>Import android.provider.MediaStore;<br>Import android.support.v7.app.AppCompatActivity;<br>Import android.os.Bundle;<br>Import android.util.Log;<br>Import android.view.View;<br>Import android.widget.ImageView;<br>Import android.widget.Toast;</p></p><p><p>Import java.io.File;<br>Import java.io.FileNotFoundException;<br>Import java.io.FileOutputStream;</p></p><p><p>/** <br> * Take photos <br> * Get pictures from albums <br> * Recording <br> * Video <br> */<br> public class Mainactivity extends Appcompatactivity {<br> ImageView img; <br> public static final int take_photo = 1;//result after photo <br> public static final int result_photo = 2;//cropped result <br> Public St atic final int get_photo = 3;//album gets results <br> public static final int get_voice_camera = 4;//gets The result of the recording </p></p><pre><code>@Overrideprotected void onCreate (Bundle Savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.activity_main); img = (ImageView) Findviewbyid (r.id.img);} /** * Button Event handling * * @param view */public void Btnclick (view view) {switch (view.getid ()) {case R.id.btntakephoto ://photo Takephoto (); Break Case R.id.btngetphoto://get Getphoto () from the album; Break Case R.id.btngetvoice://get the recording Getvoice (); Break Case R.id.btngetvideo://get Camera Getvideo (); Break }}/** * Get video */private void Getvideo () {Intent Intent = new Intent (mediastore.action_video_capture); Intent.putextra (mediastore.extra_video_quality, 0);//mass 0 lossless Startactivityforresult (intent, get_voice_camera);} /** * Get system recording */private void Getvoice () {Intent Intent = new Intent (intent.action_get_content); Intent.settype ("audio/amr"); Intent.setclassname ("com.android.soundrecorder", "Com.android.soundrecorder.SoundRecorder "); Startactivityforresult (intent, get_voice_camera);} /** * get from album picture */private void Getphoto () {Intent Intent = new Intent (intent.action_pick, null); Intent.setdataandtype (MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");//query Type Startactivityforresult ( intent, get_photo);} /** * Photo */private void Takephoto () {//open camera ACTION Intent Intent = new Intent (mediastore.action_image_capture); This parameter is the path that is stored after the photo is taken Intent.putextra (mediastore.extra_output, uri.fromfile (new File) ( Environment.getexternalstoragedirectory (), "tmp.jpg")); Startactivityforresult (intent, take_photo);} @Overrideprotected void onactivityresult (int requestcode, int resultcode, Intent data) {super.onactivityresult (request Code, resultcode, data); Switch (requestcode) {case take_photo://takes A snapshot of the returned callback function file File = new file (environment.getexternalstoragedi Rectory (), "tmp.jpg"); LOG.I ("info", "----------" + file.getpath ()); Startzoom (uri.fromfile (file)); Break Case result_photo://cropped Image return value Bundle bundle = Data.getextras (); Bitmap Bitmap = bundle.getparcelable ("data"); Get the picture returned by try {//save to local fileoutputstream fos = new FileOutputStream (environment.g Etexternalstoragedirectory () + "/tmp1.jpg"); Bitmap.compress (Bitmap.CompressFormat.JPEG, n, fos); Img.setimagebitmap (bitmap); } catch (filenotfoundexception E) {e.printstacktrace (); } break; Case Get_photo://album inside get picture startzoom (data.getdata ()); Break Case Get_voice_camera://gets The recording, or the camera (because the same processing METHOD) cursor cursor = getcontentresolver (). query (data.getdata (), null, nu ll, null, null); While (cursor.movetonext ()) {//gets the recording or the Video's storage path String path = cursor.getstring (cursor.getcolum NIndex ("_data")); Toast.maketext (mainactivity.this, path, toast.length_short). Show (); } break; }}/** * Crop Picture * * @param uri */private void startzoom (uri uri) {Intent Intent = new Intent ("com.android.camera.action.c ROP ");//open The page you want to crop intent.setdataandtype (uri," image/* ");//cropped picture, and picture type Intent.putextra (" aspectx ", 1); Represents the width-height ratio of the cropped picture Intent.putextra ("aspecty", 1); Represents the width-height ratio Intent.putextra ("outputx", 300) of the cropped picture, or the width-height Intent.putextra ("outputy", 300) of the cropped thumbnail, or the width-height of the cropped Thumbnail. T.putextra ("crop", true);//indicates Whether you need to crop the Intent.putextra ("return-data", True);//means to return the cropped picture Startactivityforresult ( intent, result_photo);} /** * Get Picture Path * * @param originaluri * @return */private String getpath (Uri originaluri) {string[] proj = {mediastore.i Mages. media.data}; Encapsulation interface for Android multimedia database cursor cursor = getcontentresolver (). query (originaluri, proj, null, null, null); According to my own understanding, this is the index value of the image that gets the user's choice int column_index = Cursor.getcolumnindexorthrow (MediaStore.Images.Media.DATA); Move the cursor to the beginning, whichA very important, careless is easily caused by the Cross-border Cursor.movetofirst (); Finally get the picture path according to the index value String path = cursor.getstring (column_index); Return path;}</code></pre><p><p>}</p></p> <p><p>Acquisition of local picture resources and video recording resources in Android</p></p></span>