最近公司在開發web型的app，涉及許多互動，剛好，我遇到js中 的Alter/Confirm/Prompt三個彈框提示函式的坑，今天記錄解決的辦法下來，供大家使用。

1、在開發過程中，前端使用了他們自己的彈框框架，結果在iOS和Android端展示這樣子，多了http。

2、為了解決這樣的問題，百度了許多，最終藉助百度上的資料和官方文件，試驗成功了。
3、其實不難解決這個問題，新建個UIWebView類別，在m檔案寫上如下程式碼，即可。

- (void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString
 
 *)message initiatedByFrame:(CGRect *)frame {


    UIAlertView* customAlert = [[UIAlertView alloc] initWithTitle:@"溫馨提示" message:message delegate:nil cancelButtonTitle:@"確定" otherButtonTitles:nil];

    [customAlert show];


}
static BOOL diagStat = NO;

static NSInteger bIdx = -1;

- (BOOL)webView:(UIWebView
 
 *)sender runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(id)frame{

    diagStat = NO;

    bIdx = -1;

    UIAlertView *confirmDiag = [[UIAlertView alloc] initWithTitle:@"溫馨提示"
                                                          message:message
                                                         delegate:self
 

                                                cancelButtonTitle:@"取消"
                                                otherButtonTitles:@"確定",  nil];

    [confirmDiag show];

    while (bIdx==-1) {
        //[NSThread sleepForTimeInterval:0.2];
        [[NSRunLoop mainRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.1f]];
    }
    if (bIdx == 0){//取消;
        diagStat = NO;
    }
    else if (bIdx == 1) {//確定;
        diagStat = YES;
    }
    return diagStat;
}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
    bIdx = buttonIndex;
}

- (NSString *) webView:(UIWebView *)view runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)text initiatedByFrame:(id)frame{

    diagStat = NO;

    bIdx = -1;

    UIAlertView *confirmDiag = [[UIAlertView alloc] initWithTitle:@"溫馨提示"
                                                          message:prompt
                                                         delegate:self
                                                cancelButtonTitle:@"取消"
                                                otherButtonTitles:@"確定",  nil];


    [confirmDiag setAlertViewStyle:UIAlertViewStylePlainTextInput];

    UITextField *textField = [confirmDiag textFieldAtIndex:0];
    textField.placeholder = @"請輸入資訊";
    textField.keyboardType = UIKeyboardTypeDefault;


    [confirmDiag show];

    while (bIdx==-1) {
        //[NSThread sleepForTimeInterval:0.2];
        [[NSRunLoop mainRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.1f]];
    }
    if (bIdx == 0){//取消;
        diagStat = NO;
    }
    else if (bIdx == 1) {//確定;
        diagStat = YES;
    }
    return textField.text;


}

效果如下：

有用，頂下