android 如何log出当前的程序使用的内存情况或者说 Bitmap 使用了多大内存

android 怎么log出当前的程序使用的内存情况或者说 Bitmap 使用了多大内存
我想记录下Bitmap 图片以不同方式打开所占的内存情况那位大大告诉小弟一下不胜感激

怎么才能显示当前的程序使用的内存情况

我试过的
1：

Java code


        System.out.println("获得整个程序的内存总数 ===== " + Runtime.getRuntime().totalMemory()); 
        System.out.println("可用内存总数  ===== " + Runtime.getRuntime().freeMemory()); 
        System.out.println("最大内存量 ===== " + Runtime.getRuntime().maxMemory());

2：

Java code

public static void displayBriefMemory() {
        Double allocated = new Double(Debug.getNativeHeapAllocatedSize())/new Double((1048576));
        Double available = new Double(Debug.getNativeHeapSize())/1048576.0;
        Double free = new Double(Debug.getNativeHeapFreeSize())/1048576.0;
        DecimalFormat df = new DecimalFormat();
        df.setMaximumFractionDigits(2);
        df.setMinimumFractionDigits(2);

        Log.d("gettings", "debug. =================================");
        Log.d("gettings", "debug.heap native: allocated " + df.format(allocated) + "MB of " + df.format(available) + "MB (" + df.format(free) + "MB free)");
        Log.d("gettings", "debug.memory: allocated: " + df.format(new Double(Runtime.getRuntime().totalMemory()/1048576)) + "MB of " + df.format(new Double(Runtime.getRuntime().maxMemory()/1048576))+ "MB (" + df.format(new Double(Runtime.getRuntime().freeMemory()/1048576)) +"MB free)");
    }

3：

Java code

        final ActivityManager activityManager = (ActivityManager) getSystemService(Service.ACTIVITY_SERVICE);    
        ActivityManager.MemoryInfo info = new ActivityManager.MemoryInfo();   
        activityManager.getMemoryInfo(info);    
        Log.e("####","系统剩余内存:"+(info.availMem >> 20)+"M");   
        Log.e("####","系统是否处于低内存运行："+info.lowMemory);
        Log.e("####","当系统剩余内存低于"+(info.threshold >> 20)+"M 时就看成低内存运行");

4：

Java code

        Double allocated = new Double(Debug.getNativeHeapAllocatedSize())/new Double((1048576));
        Double available = new Double(Debug.getNativeHeapSize())/1048576.0;
        Double free = new Double(Debug.getNativeHeapFreeSize())/1048576.0;
        DecimalFormat df = new DecimalFormat();
        df.setMaximumFractionDigits(2);
        df.setMinimumFractionDigits(2);

        Log.e("gettings", "debug. =================================");
        Log.e("gettings", "debug.heap native: allocated " + df.format(allocated) + "MB of " + df.format(available) + "MB (" + df.format(free) + "MB free)");
        Log.e("gettings", "debug.memory: allocated: " + df.format(new Double(Runtime.getRuntime().totalMemory()/1048576)) + "MB of " + df.format(new Double(Runtime.getRuntime().maxMemory()/1048576))+ "MB (" + df.format(new Double(Runtime.getRuntime().freeMemory()/1048576)) +"MB free)");

我试过了都不能得到当前程序内存使用情况

我只想得到某个变量在内存中占了多大

------解决方案--------------------
从java里是得不到内存的要从so里

android 如何log出 当前的程序使用的内存情况 或者说 Bitmap 使用了多大内存

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android 如何log出当前的程序使用的内存情况或者说 Bitmap 使用了多大内存