The ndroid system framework and upper-layer applications are developed in Java (not the Orthodox Sun Java) and implement their own Java Virtual Machine Dalvik. Since Java Virtual Machine and Java are used for development, efficiency is generally considered low. In fact, Android is the fastest running speed on the software platform of mainstream smart phones.
Why is An
the technical design, project development and post-operation of wireless search products;2. Optimize the processing logic and performance of the relevant links in the search system;3. Ensure the stable operation of the system, optimize the overall response time of the system;4. Research new technologies and services in wireless applications;5. Work closely with the product staff to continuously optimize the user experience and service quality job req
After studying the previous two articles, I think you have a deep understanding of ActionBar. The only thing we lack is that we have only learned theoretical knowledge before. Although the knowledge has been mastered, it is hard to say whether or not the chain will fall into the project practice. So don't worry. In this article, I will lead everyone into the practical application of ActionBar and combine theory and practice perfectly.
If you have not read the first two articles, read them first.
recommended because, starting with Android 2.3 (API Level 9), the garbage collector is more inclined to reclaim objects holding soft or weak references, which makes soft and weak references less reliable. In addition, in Android 3.0 (API level 11), image data is stored in local memory, so it cannot be released in a predictable way, which poses a potential risk of memory overflow and crash of the applicatio
to choose a suitable cache size for LRUCache, there are several factors that should be taken into account, such as:
How much memory can your device allocate for each application?
How many pictures can be displayed on the device screen at a time? How many images need to be preloaded, as it is possible to be displayed on the screen soon?
What is the screen size and resolution of your device? An ultra-high-resolution device, such as a G
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 and sizes, but in most cases, these pictures 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 our phone screen. As you should know, we write
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 our phone screen. As you should know, we write
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