Android中如何查看内存(下)

实例1

 

    int cnt=0;

    final static int kBufferMinSize=1000;

    final static int kBufferMaxSize=2000;

    StringBuffer strBuffer=new StringBuffer(kBufferMinSize);

    StringBuffer strBuffer2=new StringBuffer(kBufferMinSize);

    StringBuffer strBuffer3=new StringBuffer(kBufferMinSize);

    StringBuffer strBufferNativePss=new StringBuffer(kBufferMinSize);

    StringBuffer strBufferDalvikPss=new StringBuffer(kBufferMinSize);

    StringBuffer strBufferOtherPss=new StringBuffer(kBufferMinSize);

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

    final static String tag="robin";

    void printMemory()

    {

     long totalMemory=Runtime.getRuntime().totalMemory();

          long freeMemory=Runtime.getRuntime().freeMemory();

          long usedMemory=(totalMemory-freeMemory)>>10;

          totalMemory=totalMemory>>10;

          freeMemory=freeMemory>>10;

          if(strBuffer.length()>kBufferMaxSize)

          {

                strBuffer.delete(0,strBuffer.length());

                strBuffer2.delete(0,strBuffer2.length());

                strBuffer3.delete(0,strBuffer3.length());

                strBufferNativePss.delete(0,strBufferNativePss.length());

                strBufferDalvikPss.delete(0,strBufferDalvikPss.length());

          }

          strBuffer.append(usedMemory+",");

          strBuffer2.append(totalMemory+",");

          strBuffer3.append((Debug.getNativeHeapSize()>>10)+",");

          Debug.getMemoryInfo(memoryInfo);

          strBufferNativePss.append((memoryInfo.nativePss)+",");

          strBufferDalvikPss.append((memoryInfo.dalvikPss)+",");

          if(cnt++%10==0)

          {

                Log.i(tag,"usedMemory:"+strBuffer.toString());

                Log.i(tag,"totalMemory:"+strBuffer2.toString());

                Log.i(tag,"NativeHeapSize:"+strBuffer3.toString());

                Log.i(tag,"Native PSS:"+strBufferNativePss.toString());

                Log.i(tag,"Dalvik PSS:"+strBufferDalvikPss.toString());

          }    

    }

注意，对于输出的内存信息日志，我们稍作编辑就可以用于在excel产中图表，比便更直观的进行分析。