如何在android上檢查我的應用程序堆內存大小？

Question

我想要我的應用程序堆內存大小檢查。

拳頭我用android:largeHeap="true"

如何在Android上我的應用程序的堆內存大小檢查？

Answer 1

內存量取決於Android版本和設備型號。

public static void logHeap() { 
     Double allocated = new Double(Debug.getNativeHeapAllocatedSize())/new Double((1024*1024)); 
     Double available = new Double(Debug.getNativeHeapSize())/(1024*1024.0); 
     Double free = new Double(Debug.getNativeHeapFreeSize())/(1024*1024.0); 
     DecimalFormat df = new DecimalFormat(); 
     df.setMaximumFractionDigits(2); 
     df.setMinimumFractionDigits(2); 

     Log.d("tag", "debug. ===Heap====Heap======Heap====Heap====Heap====="); 
     Log.d("tag", "debug.heap native: allocated " + df.format(allocated) + "MB of " + df.format(available) + "MB (" + df.format(free) + "MB free)"); 
     Log.d("tag", "debug.memory: allocated: " + df.format(new Double(Runtime.getRuntime().totalMemory()/(1024*1024.0))) + "MB of " + df.format(new Double(Runtime.getRuntime().maxMemory()/(1024*1024.0)))+ "MB (" + df.format(new Double(Runtime.getRuntime().freeMemory()/(1024*1024.0))) +"MB free)"); 
    }