Android开发中最有效率最快的循环代码

/* * How To Write Faster Loops (after Dan Bornstein, Google Engineer) */ /* 1 ( 最快 ) */for (int i = initializer; i >= 0; i--) { ... } /* 2 第二*/int limit = calculateLoopLimit(); for (int i = 0; i < limit; i++) { ... } /* 3 */Type[] array = getMyArray(); for (Type obj : array) { ... } /* 4 */for (int i = 0; i < array.length; i++) { ... } /* 5 */ for (int i = 0; i < this.var; i++) { ... } /* 6 */for (int i = 0; i < obj.size(); i++) { ... } /* 7 (最慢) */Iterable<Type> list = getMyList(); for (Type obj : list) { ... }