在做Andriod应用性能相关的测试中，很关心的一点就是应用所占用的内存了。

我们知道可以通过 adb shell dumpsys meminfo + 包名命令来获取应用占用的内存，但是在代码中怎么获取呢？

这里我们需要用到 Debug.MemoryInfo 这个类。

获取本应用占用内存的方法：

@TargetApi(Build.VERSION_CODES.KITKAT)

public static int getMemory() {

Debug.MemoryInfo memoryInfo = new Debug.MemoryInfo();

Debug.getMemoryInfo(memoryInfo);

// dalvikPrivateClean + nativePrivateClean + otherPrivateClean;

int totalPrivateClean = memoryInfo.getTotalPrivateClean();

// dalvikPrivateDirty + nativePrivateDirty + otherPrivateDirty;

int totalPrivateDirty = memoryInfo.getTotalPrivateDirty();

// dalvikPss + nativePss + otherPss;

int totalPss = memoryInfo.getTotalPss();

// dalvikSharedClean + nativeSharedClean + otherSharedClean;

int totalSharedClean = memoryInfo.getTotalSharedClean();

// dalvikSharedDirty + nativeSharedDirty + otherSharedDirty;

int totalSharedDirty = memoryInfo.getTotalSharedDirty();

// dalvikSwappablePss + nativeSwappablePss + otherSwappablePss;

int totalSwappablePss = memoryInfo.getTotalSwappablePss();

int total = totalPrivateClean + totalPrivateDirty + totalPss + totalSharedClean + totalSharedDirty + totalSwappablePss;

return total ;

}