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ANDROID memory optimization (large Summary-medium) and android Memory Optimization Reprinted please indicate this article from the blog of the big glutinous rice (http://blog.csdn.net/a396901990). Thank you for your support! Preface: The idea of this article mainly draws on a speech PPT at the AnDevCon Developer Conference in 2014, and summarizes, selects, and
Reprinted the multi-thread usage of Android multi-thread processing, large collection of android Handler. post (r) does not actually start a new thread, but the run () method in runnable is not executed, so runnable still runs the UI thread. 1. If it is like this, you can operate the ui, but run is still in the main thread. See that the printed Log thread name is
[Excellent] large collection of Android game source code, android gameAndroid custom effects-random lottery You can set several options for a simulated lottery. After adding the options, you can use a program to help you randomly select one of them. This is similar to the kind of pointer turntable lottery in the supermarket. After running, it is a dynamic, fast
Restore Heap Memory overflow errorFirst, restore the heap memory overflow error. First put a photo on the SD card, the resolution is (3776 X 2520), the size of 3.88MB, is my own camera took a picture. The layout of the application is simple, a button is ImageView, and then in the usual way, use bitmapfactory to load a picture and use a imageview display.The code is as follows: Copy Code code as follows: Btn_loadimage.setonclicklistener (New View.onclicklistener () { @Overr
[Excellent] large collection of Android game source code, android gameAndroid custom effects-random lottery You can set several options for a simulated lottery. After adding the options, you can use a program to help you randomly select one of them. This is similar to the kind of pointer turntable lottery in the supermarket. After running, it is a dynamic, fast
A large number of insert transactions are enabled for Android databases, and android transactions are performed. Comparison of the three methods of batch data insertion in android (the time spent on inserting 1 million pieces of data each ): 1. Insert one by one publicstaticboolean insert(SQLiteOpenHelper openHelper,
Android effectively resolves memory overflow when loading large imagesBlog Category: Android Android game Virtual machine algorithm JNITry not to use Setimagebitmap or Setimageresource or Bitmapfactory.decoderesource to set a larger picture,Because these functions are finished decode, they end up with the
ANDROID memory optimization (large Summary-medium) Preface: The idea of this article mainly draws on a speech PPT at the AnDevCon Developer Conference in 2014, and summarizes, selects, and simplifies the various memory scattered knowledge points collected on the Internet. So I will define this article as a tool-type article. If you encounter memory problems in ANDROID
is relatively small, only 8 m of memory, when I put in a large number of pictures (about 100 more than K), the above reasons appear.Since each picture was previously compressed, when placed into the bitmap, the size will become larger, resulting in more than RAM memory, the specific solution is as follows://solve the problem of loading picture memory overflow //options save only the image size, Do not save picture to memory bitmapfactory.options opts
large collection of penetration test tools under Android platformShare a Google project, a variety of Android under the Penetration testing tool.Ad Network Detector (1.2): Http://market.android.com/details?id=com.lookout.addetectorApp Backup Restore (1.0.5): Http://market.android.com/details?id=mobi.infolife.appbackupApp Cache Cleaner (1.1.3): Http://market.andr
; Bitmap bmp = null; BMP = Bitmapfactory.decoderesource (Getresources (), mimageids[position],opts); ... Recovery Bmp.recycle (); Solved by the way above, but this is not the perfect solution. Through some understanding, learned as follows: Optimizing heap memory allocations for Dalvik virtual machines For the Android platform, the Dalvik JAVAVM used by its hosting layer can be optimized for the present performance, such as we might consider
Problem: I have a relatively large image, for example, the length and width are twice the size of the screen. The function I want to achieve is to first display the picture in the center, because the picture is too big, obviously only a part can be displayed, then, you can drag the image to achieve smooth scrolling (no trace of scrolling and refreshing can be seen ). Like google Maps, if mapView is used, you can drag the entire map on the screen. Howe
three parts. Now it's all done:Memory Introduction, Recoken (calculation) See :android Memory Optimizer (large rollup--on) reduce (decrease), reuse (reuse) See :Android Memory Optimizer (large rollup--medium) Recycle (recycling), Review (check) See :android Memory Optimi
Reprinted from Csdn Android Big GodGuo LinReprint Please specify source: http://blog.csdn.net/guolin_blog/article/details/9316683The main content of this article comes from Android Doc, I have done some processing after translation, English good friends can also directly read the original text.Http://developer.android.com/training/displaying-bitmaps/index.htmlLoading la
This article starts in CSDN blog, reprint please indicate source: http://blog.csdn.net/guolin_blog/article/details/9316683The main content of this article comes from Android Doc, I have done some processing after translation, English good friends can also directly read the original text.Http://developer.android.com/training/displaying-bitmaps/index.htmlLoad large images efficientlyWe often use a lot of pict
The main content of this article from Android Doc, I translated and done some processing, English good friends can also directly read the original.Http://developer.android.com/training/displaying-bitmaps/index.html Load large pictures efficiently We often use a lot of pictures when we write Android programs, and different pictures always have different shapes a
load large images efficientlyWe often use a lot of pictures when we write the Android program, different pictures will always have different shapes, different sizes, but in most cases, these images will be larger than the size of our program. For example, the pictures in the system pictures are mostly taken from the mobile phone camera, the resolution of these images is much higher than the resolution of ou
Load large images efficientlyWe often use a lot of pictures when we write the Android program, different pictures will always have different shapes, different sizes, but in most cases, these images will be larger than the size of our program. For example, the pictures in the system pictures are mostly taken from the mobile phone camera, the resolution of these images is much higher than the resolution of ou
When we are in the process of doing the project, when we encounter the picture, we should consider the size of the image, the size of the memory, the reason is that Android allocated to the size of the bitmap only 8M, imagine that we use a mobile phone to take pictures, ordinary a picture does not have to 1 m above, So Android processing pictures have to consider the picture too
Recently, I have developed applications on xoom. I used images for the UI design and multiple activities. If you don't feel anything at first, you can do it. After the execution is complete, it is okay to start running the first three activities. Everything is OK. However, OOM (out of memory) often occurs in the last activity. Because in the last activity, you need to open a PDF file, then render, along with multi-touch, reander's pdf page scaling, because the reander image itself is relatively
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