NSMutablearray 不打印所有数组元素

Question

我正在使用以下代码将元素动态存储在数组中并稍后检索它

for (int i = 0; i< [companyNames count]; i++){
    testimonialsArray = [[NSMutableArray alloc]init];
    testimonialsComplementedArray = [[NSMutableArray alloc]init];
    [testimonialsArray addObject:companyNames[i] ];
    [testimonialsComplementedArray addObject:texts[i]];

    NSLog(@"Compliments %@",testimonialsComplementedArray);
}

但它只打印添加到数组中的最后一个副本。如何检索所有元素？

以下是公司名称，

"General Marketing Company",
 "United Enterprises, Chennai",
 "Hari Match Industries"

Answer 1

testimonialsArray = [[NSMutableArray alloc]init]; // have to init out side the loop
testimonialsComplementedArray = [[NSMutableArray alloc]init]; // have to init out side the loop
for (int i = 0; i< [companyNames count]; i++){
    [testimonialsArray addObject:companyNames[i] ];
    [testimonialsComplementedArray addObject:texts[i]];        
}
NSLog(@"Compliments %@",testimonialsComplementedArray);

Answer 2

在for循环上面分配testimonialsArray = [[NSMutableArray alloc]init];如果你每次都在循环内部初始化内存将被初始化，最终值只有你在finally中输出，就像

testimonialsArray = [[NSMutableArray alloc]init];
testimonialsComplementedArray = [[NSMutableArray alloc]init]
 for (int i = 0; i< [companyNames count]; i++){
  [testimonialsArray addObject:companyNames[i] ];
[testimonialsComplementedArray addObject:texts[i]];
 }

NSLog(@"Compliments %@",testimonialsComplementedArray);

Answer 3

你每次都在 for 循环中分配可变数组，因为它会初始化数组并在其中添加对象 everytime.Always 最好在 ViewDidLoad 方法中分配任何对象。

Answer 4

这样试试。

testimonialsArray = [[NSMutableArray alloc]init];
testimonialsComplementedArray = [[NSMutableArray alloc]init];

for (int i = 0; i< [companyNames count]; i++){
[testimonialsArray addObject:companyNames[i] ];
[testimonialsComplementedArray addObject:texts[i]];

}
NSLog(@"Compliments %@",testimonialsComplementedArray);

NSMutablearray 不打印所有数组元素

NSMutablearray doesn't prints all array elements

objective-c

nsmutablearray

ios