目录实现原理应用Java实现代码知识点补充SHA-256是一种散列(哈希)算法,用于将任意长度的数据映射为固定长度的散列值,以保证数据完整性。SHA-256是SHA(Secure Hash Algorithm)系列中的一种,其输出结果为256位(
I am writing a android application where, on startup activity view, I have a button \"DoIt\". When user clicks \"DoIt\" button, I start another activity with different layout. On newly started activit