Android获取本应用内存占用的方法

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 ;
	}