undelete pictures android

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 function, to achieve the upload function. It is

Android.graphics.Bitmap;Import Android.graphics.BitmapFactory;Import Android.net.Uri;Import Android.os.Bundle;Import android.os.Environment;Import Android.provider.MediaStore;Import android.support.v7.app.AppCompatActivity;Import Android.util.Log;Import Android.view.View;Import Android.widget.ImageView;Import Com.sctu.edu.test.tools.ImageTools;Import Java.io.File;Import java.io.IOException;Import Java.text.SimpleDateFormat;Import Java.util.Date;public class Mainactivity extends Appcompatactivit

How does Android add a click event to each part of a picture or images?1, If you are not a lot of words can be the entire UI with the GridView and then through the GridView Pointtoposition method to obtain this item2, can be added to the picture in the linerlayout through the coordinates after the judge is that part3, rewrite ImageView http://snowcoal.com/article/520.html4, Android image area click (Image H

; reqheight (halfwidth/insample Size) > Reqwidth) {insamplesize *= 2;}} return insamplesize;}With the appropriate insamplesize value, you can actually perform the operation of loading the picture. The code is as follows:Final Bitmapfactory.options Options = new Bitmapfactory.options (); Options.insamplesize = 2; Options.injustdecodebounds = false; Bitmap Bitmap = Bitmapfactory.decoderesource (res, resId, options); ImageView ImageView = (ImageView) Findviewbyid (R.ID.IMAGEVIEW1); Imageview.setim

, motionevent event) {ImageView view = (ImageView) v;switch (EV Ent.getaction () Motionevent.action_mask) {case MotionEvent.ACTION_DOWN:matrix.set (View.getimagematrix ()); Savedmatrix.set (matrix); Start.set (Event.getx (), event.gety ()); mode = Drag;break;case Motionevent.action_pointer_ down:olddistance = Spacing (event), if (Olddistance > 5f) {savedmatrix.set (matrix); Midpoint (Mid, event); mode = ZOOM;} Break;case MotionEvent.ACTION_UP:case MotionEvent.ACTION_POINTER_UP:mode = none;break

voidprocesslogic (Bundle saveinstancestate) {}//get local pictures@Overrideprotected voidOnactivityresult (intRequestcode,intResultCode, Intent data) { if(ResultCode = =RESULT_OK) {URI Uri=Data.getdata (); LOG.E ("uri", uri.tostring ()); Contentresolver CR= This. Getcontentresolver (); Try{Bitmap Bitmap=Bitmapfactory.decodestream (Cr.openinputstream (URI)); ImageView ImageView=(ImageView) Findviewbyid (R.ID.WRITE_COMPETERELAY_COVER_IV); /*set

to heightIntent.putextra ("Aspectx",1); Intent.putextra ("Aspecty",1);//Outputx,outputy is the width height of the cropped pictureIntent.putextra ("Outputx", size); Intent.putextra ("Outputy", size); Intent.putextra ("Scale",true); Intent.putextra ("Return-data",true); Startactivityforresult (Intent, photo_request_cut); }//The cropped picture is displayed to the UI interface Private void Setpictoview(Intent Picdata) {Bundle bundle = Picdata.getextras ();if(Bundle! =NULL) {Bitmap p

A few days ago, we client side of the market received a demand, we need to order after the deal, our client has a copy of the transaction voucher function, then how to upload the image on the Android function? Before I code, I ask myself a few questions. First, the picture is directly selected in the gallery, or need to take photos and choose pictures two options? Because when you choose a picture, there

(ResultCode! =RESULT_OK) { return; } Else { Switch(requestcode) { CaseImage_request_code:resizeimage (Data.getdata ()); Break; CaseCamera_request_code:if(Issdcardexisting ()) {Resizeimage (Getimageuri ()); } Else{toast.maketext (mainactivity). This,"No memory card found, no photos saved! ", Toast.length_long). Show (); } Break; CaseResize_request_code:if(Data! =NULL) {showresizeimage (data); } Break; }} super.onactivityresult

Photo wall This kind of function is quite common now, in many applications you can often see the shadow of the picture wall. Its design is actually very simple, with a GridView control as a "wall", and then along with the GridView rolling a picture affixed to the "wall", these photos can be stored on the phone locally, can also be downloaded from the Internet. To make an application similar to this one, there is a very important question to consider when the picture resources should be released.

The example in this article describes how Android programming displays pictures on the network. Share to everyone for your reference, specific as follows: To display a picture on the network in Android, you need to find the image address based on the URL, then convert the image into a Java InputStream, and then convert the InputStream stream into a bitmap. Bitma

The example in this article describes how Android caches pictures based on SoftReference. Share to everyone for your reference, specific as follows: SoftReference in Java is a soft reference to an object. If an object has a soft reference and the memory space is sufficient, the garbage collector does not reclaim it, and if the memory space is low, the memory of those objects is reclaimed. The object can be

This example describes the Android implementation textview display HTML plus pictures. Share to everyone for your reference, specific as follows: TextView Display Network pictures, I use the android2.3 system, can display the picture out, and if the picture is bigger, the application will card phenomenon, certainly is because uses the main thread to obtain the n

React native pictures saved to a local album (iOS Android) one, requirements analysis 1,react native Save the network image to the album, iOS can be used with RN cameraroll perfect solution, but the Android side does not support to save pictures from the network. 2, save only one picture to the local album (such as gen

An example of this article is a simple way to get a picture on a network with Android programming. Share to everyone for your reference, specific as follows: To get the picture on the network, first of all have access to the network, this no longer write, the previous article has written, there is no longer the layout of the writing, is written is also a simple layout, not much meaning, directly on the core code: This is a simple class that I use to

This article is an example of how Android programming learns to load pictures asynchronously. Share to everyone for your reference, specific as follows: The most recent challenge in Android development is to load a picture memory overflow. I developed a news application, the application of a large number of pictures,

In an application to replace the user's avatar, generally have to take pictures and choose photos from the gallery two ways, now there are many open-source online, but many are too complex. And Android-crop This cubby small, the code is not complex, more suitable, but it does not take pictures of this function, we need to integrate them.Call system camera to take

The example in this article describes how the Android program paints animations based on a series of pictures. Share to everyone for your reference, specific as follows: First, using the system provided by the animation class, with the method of the band The Animation.xml files are as follows: Animationdrawable animationdrawable = null; /** get ImageView object **/ ImageView = (i

= "Wrap_content"android:gravity= "Center"> ImageViewAndroid:id= "@+id/image"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"android:layout_gravity= "Center" /> LinearLayout> LinearLayoutAndroid:id= "@+id/buttons"Android:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:layout_alignparentbottom= "true"android:layout_gravity= "Bottom"android:orientation= "Horizontal"> ButtonAndroid:id= "@+id/last"Android:layout_width= "Wrap_conten

For the ListView asynchronous load Picture This problem, wheat college Android development teacher said a very practical method, wheat college Android development teacher says that anything is to get pictures through the network general Use this method is better, the user experience is good, the following said the implementation method, Paste the code of the Main