轉載至：https://juejin.cn/post/7098257692828893220

Java代碼獲取內存信息:

private void getMaxMemoryInfo() {
   Runtime rt = Runtime.getRuntime();
   long maxMemory = rt.maxMemory();
   Log.e("XMemory", "Dalvik MaxMemory:" + Long.toString(maxMemory / (1024 * 1024)));
   ActivityManager activityManager = (ActivityManager) ContextHolder.getAppContext().getSystemService(Context.ACTIVITY_SERVICE);
   Log.e("XMemory", "Dalvik MemoryClass:" + Long.toString(activityManager.getMemoryClass()));
   Log.e("XMemory", "Dalvik LargeMemoryClass:" + Long.toString(activityManager.getLargeMemoryClass()));

   ActivityManager.MemoryInfo info = new ActivityManager.MemoryInfo();
   activityManager.getMemoryInfo(info);
   Log.e("XMemory", "系統(tǒng)總內存:" + (info.totalMem / (1024 * 1024)) + "M");
   Log.e("XMemory", "系統(tǒng)剩余內存:" + (info.availMem / (1024 * 1024)) + "M");
   Log.e("XMemory", "系統(tǒng)是否處于低內存運行：" + info.lowMemory);
   Log.e("XMemory", "系統(tǒng)剩余內存低于" + (info.threshold / (1024 * 1024)) + "M時為低內存運行");
}

通過名命令行獲取內存信息：