加載新的線程

Question

我想，而我調用web服務做一個加載視圖... 我已經試過這樣：

-(void) viewDidLoad { 
[NSThread detachNewThreadSelector:@selector(workerThread) toTarget:self withObject:nil]; 
//here I call the thread before call web service 
} 


-(void) workerThread { 
[viewLoading setHidden:NO]; 
[NSThread detachNewThreadSelector:@selector(threadAnimacao) toTarget:self withObject:nil]; 
} 


-(void) threadAnimacao { //call this function is ok, but the timerLoadingEvento only is called after the call webservice ends 
contadorLoading = 0; 
nVoltas = 0; 
nEspera = 0; 
timerLoading = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(timerLoadingEvento:) userInfo:nil repeats:YES]; 
} 


-(void)timerLoadingEvento:(NSTimer *)theTimer{ 
UIImageView *img = imgLoading; 

if (nEspera == 0) { 
    if(contadorLoading == 0) 
     [img setImage:[UIImage imageNamed:@"frame_01.png"]]; 
    else if(contadorLoading == 1) 
     [img setImage:[UIImage imageNamed:@"frame_02.png"]]; 
    else if(contadorLoading == 2) 
     [img setImage:[UIImage imageNamed:@"frame_03.png"]]; 
    else if(contadorLoading == 3) 
     [img setImage:[UIImage imageNamed:@"frame_04.png"]]; 
    else if(contadorLoading == 4) 
     [img setImage:[UIImage imageNamed:@"frame_05.png"]]; 
    else if(contadorLoading == 5) 
     [img setImage:[UIImage imageNamed:@"frame_06.png"]]; 
    else if(contadorLoading == 6) 
     [img setImage:[UIImage imageNamed:@"frame_07.png"]]; 
    else if(contadorLoading == 7) 
     [img setImage:[UIImage imageNamed:@"frame_08.png"]]; 
    else if(contadorLoading == 8) 
     [img setImage:[UIImage imageNamed:@"frame_09.png"]]; 
} 

contadorLoading++; 
nVoltas++; 

if(nEspera != 0) 
    nEspera++; 

if(nEspera>250) { 
    nEspera = 0; 
    contadorLoading = 0; 
    nVoltas = 0; 
} 

if(contadorLoading == 8) 
    contadorLoading = 0; 

if(nVoltas == 9) 
    nEspera = 1; 
} 

Answer 1

您可以使用默認的活動指標，而你的Web服務調用是fiinshes

或者，如果你有你的進步

自定義圖像您可以嘗試添加animationImages（的UIImage對象的數組）UImageView，設置動畫重複次數（0無限期）&動畫的持續時間爲imageview &呼叫imageview開始動畫&一旦Web服務完成呼叫停止動畫。

有關更多詳細信息，請查看UIImageView API指南。

希望這有助於！