ActivityManager activityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);    //最大分配內存    int memory = activityManager.getMemoryClass();    System.out.println("memory: "+memory);    //最大分配內存獲取方法2    float maxMemory = (float) (Runtime.getRuntime().maxMemory() * 1.0/ (1024 * 1024));    //當前分配的總內存    float totalMemory = (float) (Runtime.getRuntime().totalMemory() * 1.0/ (1024 * 1024));    //剩余內存    float freeMemory = (float) (Runtime.getRuntime().freeMemory() * 1.0/ (1024 * 1024));    System.out.println("maxMemory: "+maxMemory);    System.out.println("totalMemory: "+totalMemory);    System.out.println("freeMemory: "+freeMemory);

System.out: memory: 256System.out: maxMemory: 256.0System.out: totalMemory: 11.974937System.out: freeMemory: 3.6257935