MBProgressHUD是一個開源項目,實現了很多種樣式的提示框,使用上簡單、方便,並且可以對顯示的內容進行自定義,功能很強大,很多項目中都有使用到。到GitHub上可以下載到項目源碼https://github.com/jdg/MBProgressHUD,下載下來後直接把MBProgressHUD.h和MBProgressHUD.m拖入工程中就行,別忘了選擇拷貝到工程。完了在需要使用的地方導入頭文件就可以開始使用了。首先看下工程截圖:
接下來是整個Demo的完整界面,這裏我只選擇出了幾個常用的對話框,其他樣式的在源碼提供的Demo裏可以找到,要用的話直接參考就可以。
接下來直接上代碼了,頭文件部分:
- #import <UIKit/UIKit.h>
- #import "MBProgressHUD.h"
- @interface ViewController : UIViewController
- {
- //HUD(Head-Up Display,意思是擡頭顯示的意思)
- MBProgressHUD *HUD;
- }
- - (IBAction)showTextDialog:(id)sender;
- - (IBAction)showProgressDialog:(id)sender;
- - (IBAction)showProgressDialog2:(id)sender;
- - (IBAction)showCustomDialog:(id)sender;
- - (IBAction)showAllTextDialog:(id)sender;
- @end
實現文件(按鈕實現部分):
- - (IBAction)showTextDialog:(id)sender {
- //初始化進度框,置於當前的View當中
- HUD = [[MBProgressHUD alloc] initWithView:self.view];
- [self.view addSubview:HUD];
- //如果設置此屬性則當前的view置於後臺
- HUD.dimBackground = YES;
- //設置對話框文字
- HUD.labelText = @"請稍等";
- //顯示對話框
- [HUD showAnimated:YES whileExecutingBlock:^{
- //對話框顯示時需要執行的操作
- sleep(3);
- } completionBlock:^{
- //操作執行完後取消對話框
- [HUD removeFromSuperview];
- [HUD release];
- HUD = nil;
- }];
- }
- - (IBAction)showProgressDialog:(id)sender {
- HUD = [[MBProgressHUD alloc] initWithView:self.view];
- [self.view addSubview:HUD];
- HUD.labelText = @"正在加載";
- //設置模式爲進度框形的
- HUD.mode = MBProgressHUDModeDeterminate;
- [HUD showAnimated:YES whileExecutingBlock:^{
- float progress = 0.0f;
- while (progress < 1.0f) {
- progress += 0.01f;
- HUD.progress = progress;
- usleep(50000);
- }
- } completionBlock:^{
- [HUD removeFromSuperview];
- [HUD release];
- HUD = nil;
- }];
- }
- - (IBAction)showProgressDialog2:(id)sender {
- HUD = [[MBProgressHUD alloc] initWithView:self.view];
- [self.view addSubview:HUD];
- HUD.labelText = @"正在加載";
- HUD.mode = MBProgressHUDModeAnnularDeterminate;
- [HUD showAnimated:YES whileExecutingBlock:^{
- float progress = 0.0f;
- while (progress < 1.0f) {
- progress += 0.01f;
- HUD.progress = progress;
- usleep(50000);
- }
- } completionBlock:^{
- [HUD removeFromSuperview];
- [HUD release];
- HUD = nil;
- }];
- }
- - (IBAction)showCustomDialog:(id)sender {
- HUD = [[MBProgressHUD alloc] initWithView:self.view];
- [self.view addSubview:HUD];
- HUD.labelText = @"操作成功";
- HUD.mode = MBProgressHUDModeCustomView;
- HUD.customView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Checkmark"]] autorelease];
- [HUD showAnimated:YES whileExecutingBlock:^{
- sleep(2);
- } completionBlock:^{
- [HUD removeFromSuperview];
- [HUD release];
- HUD = nil;
- }];
- }
- - (IBAction)showAllTextDialog:(id)sender {
- HUD = [[MBProgressHUD alloc] initWithView:self.view];
- [self.view addSubview:HUD];
- HUD.labelText = @"操作成功";
- HUD.mode = MBProgressHUDModeText;
- //指定距離中心點的X軸和Y軸的偏移量,如果不指定則在屏幕中間顯示
- // HUD.yOffset = 150.0f;
- // HUD.xOffset = 100.0f;
- [HUD showAnimated:YES whileExecutingBlock:^{
- sleep(2);
- } completionBlock:^{
- [HUD removeFromSuperview];
- [HUD release];
- HUD = nil;
- }];
- }
依次實現的效果如下:
下面這個效果就類似Android中的Toast:
純爲了大家和自己學習方便,如有冒犯,請聯繫我,然後刪除~