undelete pictures android

, URI, file, resource ID, and so on. Basically meet most of the needs. Although loading local pictures is not as complex as network pictures, I recommend using glide to load local pictures. Because it is memory friendly, but also "secretly" to help us do a lot of things. For example, memory cache, bitmap multiplexing, fixed photo direction, and so on. Of course,

picture, and do not have to manually recycle, but also to ensure that no exception to do? For example a banner page, this time, I recommend not to use the Setimageresource (directly in the XML SRC reference is also called this method)Setimagedrawable these two methods.should use bitmap=. Bitmapfactory.decoderesource and Setimagebitmap combined, here is not reused, and the system will be based on the frequency screen density to scale, to avoid the waste of memory, at the same time you can also m

First, the realization of taking pictures, select pictures and crop picture effects According to the style of the previous blog, first look at the implementation effect. II. Application of Ucrop project Think of the previous yalantis/ucrop effect is more gorgeous, but after the study of the source found in the custom interface is still a bit of restri

This article illustrates a simple way to call pictures, video, audio, recording, and photographing in Android. Share to everyone for your reference, specific as follows: Select the logo returned by the picture Requestcode Intent innerintent = new Intent (intent.action_get_content); "Android.intent.action.GET_CONTENT" Innerintent.settype (ContentType); View type String image_unspecified = "image/*"; In

Although the following app has not done fast map browsing, ES file browser level, encounter big sdcard or there will be read too long, memory overflow and other issues, but the basic idea is this.For example with. There are 4 pictures on the SDcard card,Open the app and it will read all the pictures on the SD card and display it. The read process has a progress bar display.The production steps are as follow

) {Mpauseworklock.notifyall (); } } }/** * Exit thread * @param exittasksearly */public void Setexittasksearly (Boolean exittasksearly) {mexittasksearly = exittasksearly; Setpausework (false);//This setting is false, which makes the exit task graceful. This setting is true also possible, and there is no problem, can achieve the same effect. However, you can compare the differences that are set to true or false. }}This is all about getting the entire contents of your local im

Load Network pictures via network linkAllow access to the networkandroid:name= "Android.permission.INTERNET"/>Mainactivity Packagecom.chuanxidemo.shaoxin.demo08;ImportAndroid.graphics.Bitmap;Importandroid.graphics.BitmapFactory;ImportAndroid.os.Bundle;ImportAndroid.os.Handler;ImportAndroid.os.Message;Importandroid.support.v7.app.AppCompatActivity;ImportAndroid.view.View;ImportAndroid.widget.Button;ImportAndroid.widget.ImageView;Importjava.io.IOExcepti

Viewpager This small demo implementation is can be left and right loop slide picture, below with index, slide to the last page in the first page, the first page to the left to the last page, first, with beautiful pictures is my usual style, hehe1. First look at some of the layout of the XMLUsing Viewpager first needs to introduce Android-support-v4.jar this jar package. Don't forget to addPackage Com.exampl

For clients-server-side applications, getting pictures remotely is a common feature. and picture resources tend to consume a larger flow, for applications, if the problem is not handled well, it will make users very crash, unknowingly mobile phone traffic ran out, and other users found that your application consumed his mobile phone traffic , then imagine your application will face what kind of fate.Another problem is load speed, if the application of

; intent-filter> activity> activity android:name=". Mainactivity "/> Application>manifest>OK, our code is done ~ try to let it runSummary: Through the above practice, the use of Picasso has been basically mastered, but we do not involve the most important point is the image of the cache, why did not write this part of it, because this part of the relatively involved in more things, so I intend to write another article specifically explore the

. Can you maintain a good balance between quantity and quality? In some cases, it is more effective to store multiple low-pixel images, while loads in the background to load high-resolution images. And not a specified cache size can satisfy all applications, which is up to you. You should analyze the usage of the program's memory and then work out a suitable solution. A cache space that is too small can cause images to be released and reloaded frequently, which does not benefit. A cache

Android: cartoon APP development notes: Scaling pictures in ListView by screen width 1. listview Where, android:divider="#00000000"Set the interval color of the list items to transparent, android:listSelector="#00000000"Set no background color when you click an image (transparent color, no system background color) Ii. piclist_item Iii. PicListInfo Package com. cartoon. adapte

This article describes how Android uses post to upload pictures to the server. Share to everyone for your reference, specific as follows: /** * Upload files to server class * * @author Tom/public class Uploadutil {private static final String TAG = "UploadFile"; private static final int time_out = 10 * 1000; Timeout time private static final String CHARSET = "Utf-8"; Set Code/** *

Lead:Today's Android apps are mostly combined to take pictures and choose from albums (of course, this is the product dog thing, the beginning of the topic). )Today in the writing of a functional module encountered an embarrassing problem, the same is the photo to get the image function, on the colleague's Samsung run no problem, but on my mobile phone on a run on the system-level modification of the

Loading pictures from the network there are two main issues to note:1. Memory management: The image occupies a large amount of memory, the number of fake pieces, it is easy to let the system throw out of memory of the exception.At the same time, we should also pay attention to different versions of Android memory management differences.2. Performance: Picture loading speed, and loading

, whereR represents the country, and us represents the United States in Java. Language recognition rules: for example, when the system language is set to British English, the system cannot find the English language, it will use the files in the "values-en" folder.If it is set to a language without a folder, files in the values folder are automatically matched.-->Android: layout_width = "fill_parent"Android

,"Choose_big_picture:data =" + data);//It seems to is null if(Imageuri! =NULL) {Bitmap Bitmap= Decodeuriasbitmap (Imageuri);//decode BitmapImageview.setimagebitmap (bitmap); } Break; Casechoose_small_picture:if(Data! =NULL) {Bitmap Bitmap= Data.getparcelableextra ("Data"); Imageview.setimagebitmap (bitmap); }Else{log.e (TAG,"Choose_small_picture:data =" +data); } Break; default: Break; }PrivateBitmap decodeuriasbitmap (Uri uri) {Bitmap Bitmap=NULL; Try{bitmap=Bitmapfactory

is not very slow, The results of the online home test I do not remember very clearly about 100ms bar).In the official API before Android 4.0 there is no relevant method provided, but after 4.0, the API provides the relevant methods.Please refer to the article here, written very good: http://www.uisdc.com/image-format-webp-introduction2. Use so file to compress jpg, read an article, people said inside why the Andr