increase app memory android

Data show that the App Store in July 2008 at the beginning of the launch, the number of apps only more than 500, the same October Google online Android Market (now Google Play) only 40, as of January 2015, the former number of apps reached 1.21 million, The latter has exceeded 1.43 million. You must be surprised at this number, because we know the app is so many,

requested by the virtual machine to the system at startup. Generally speaking, this parameter is not important. However, some applications in the case of heavy load will take up more memory, when this parameter is very important, if the virtual machine is set up when the memory is relatively small and in this case there are many objects to initialize, the virtual machine must repeatedly

Dalvik code (precompiled. odex for direct calling), application resources (called by guotong resume resource ing table), and some default project resources, such as in. local Code in the so file 3.In many places, Android directly allocates memory areas to share the same dynamic RAM across processes.For example, if the window Surface uses a public area for application and screen sorting, the Cursor cache us

=(Activitymanager) Getsystemservice (Context.activity_service);4Memoryinfo mi =Newmemoryinfo ();5 Am.getmemoryinfo (MI);6 //Mi.availmem; available memory for the current system7 //normalize the acquired memory size8 returnformatter.formatfilesize (Getbasecontext (), mi.availmem);9}1/** Android Gets the amount of

application . This limit depends on how much ram the device has. Assuming that your app has reached the upper limit of the heap, and you want to allocate a lot of other memory space, it can cause oom.Under certain conditions. You may want to know the maximum amount of heap space the system has agreed on on the current device. For example, it is used to determine the size of a cache.Then you can get to thes

, but some cannot? Why? Because Android 2.2 and later versions are allowed to be moved to the SD card. However, all applications developed earlier do not have this function. So how can I allow your app to move to the SD card? The answer is actually very simple. You only need to set an installLocation attribute for Manifest. This property sets the default installation location. There are three valid values:

interface, but more than 1.41M!!! This is key.Next, let's find out where the leak happened. Click Dump Java Heap to generate the snapshot file Tool.test.memory.memoryleak_2016.11.13_21.38.hprof,android Studio automatically pops up hprof viewer to analyze it.Snapshot file analysis. pngNow introduce the usage of the Hprof Viewer HPROF Viewer View modeThe upper-left corner of the two red boxes, is an optional list, is used to select the heap ar

, the longer the time it takes to exist in the background) 3. Direct crash (OutOfMemoryError) Problems with ANDROID memory: 1. Limited heap memory, originally only 16 MB 2. Memory size consumption varies depending on the device, operating system level, and screen size 3. The program cannot be directly controlled 4. S

intent in the filter is sent by the system (Android.intent.action.MEDIA_MOUNTE, Android.net.wifi.WIFI_STATE_CHANGED and so on), this time the app will be launched according to this intent.It is important to note that the receiver is static and must be registered in the Androidmanifest. When WiFi is successfully registered, a wifi_state_changed message is issued, or a similar message is sent after the other parts have completed some events, and these

Speaking of Android phone, most people's impression is a bit of time to become a little lag, some programs in the run inexplicably crashes, open the System folder A look, found a lot of files, and then use the mobile phone butler APP constantly clean optimization, just feel the speed slightly improved point, Even if the mobile phone in a variety of performance in front of the software score ahead, or feel n

Speaking of Android phone, most people's impression is a bit of time to become a little lag, some programs in the run inexplicably crashes, open the System folder A look, found a lot of files, and then use the mobile phone butler APP constantly clean optimization, just feel the speed slightly improved point, Even if the mobile phone in a variety of performance in front of the software score ahead, or feel n

placed in the assets or nodpi directory.5) Try catch operation of some large memory allocationsIn some cases, we need to evaluate the code that may have oom in advance, and for these potentially oom code, join the catch mechanism and consider trying a degraded memory allocation operation in the catch. For example decode bitmap, catch to Oom, you can try to increase