How to Detect Lowmemory in android?

Question

My application has a lot of images and sometimes it crashes due to low memory. I wrote this function that I found on the developer site.

public void onLowM         


        

Answer 1

As explained at android developers is hard to determine how much memory we have available for our app since: The exact heap size limit varies between devices based on how much RAM the device has available overall. So is a better approach to ask if we are running in a lowMemory environment using ActivityManager.MemoryInfo before doing a memory heavy operation like downloading an image or trying to load an image into memory, by doing this you will prevent OutOfMemoryExceptions

public void doSomethingMemoryIntensive() {

    // Before doing something that requires a lot of memory,
    // check to see whether the device is in a low memory state.
    ActivityManager.MemoryInfo memoryInfo = getAvailableMemory();

    if (!memoryInfo.lowMemory) {
       // Do memory intensive work ...
    }
}
// Get a MemoryInfo object for the device's current memory status.
private ActivityManager.MemoryInfo getAvailableMemory() {
    ActivityManager activityManager = (ActivityManager) this.getSystemService(ACTIVITY_SERVICE);
    ActivityManager.MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();
    activityManager.getMemoryInfo(memoryInfo);
    return memoryInfo;
}