Background : in an ordinary iOS development group, there are more than one testing machine, but when we are developing, it is impossible for each testing machine to keep up-to-date code at all times, which leads to a problem. When the test detects a problem, (or the product suddenly takes a little bit of it to see a problem) if we don't know the current version, we may not be sure when the problem occurs.

Ideas:

• To display globally, it must be added to the top layer (window layer)
• Since there are text and background pictures in the requirement map, UIButton is preferred (of course, if there are warriors who have to use UIView, there are imageView and label o98k in it)
• Since this image is not translucent, it will block the content behind it, so this label must be draggable - consider adding a drag gesture
• In essence, it can be understood as creating a UIButton, adding a drag gesture to it, and then adding it to the UIWindow display

Knowledge 1: button displays 2 lines of text

//Newline display of UIbutton
button.titleLabel.lineBreakMode = NSLineBreakByWordWrapping;

//Then the content of the title will wrap with "\ n"
title = @"123\n666"

Knowledge 2: obtaining Version and Build number

NSString *versionStr = [[[NSBundle
       mainBundle]infoDictionary]valueForKey:@"CFBundleShortVersionString"];
NSString *buildStr = [[[NSBundle
       mainBundle]infoDictionary]valueForKey:@"CFBundleVersion"];

Knowledge 3: movement of controls - essentially: coordinates++

//Drag to change the horizontal x value of the control
- (CGRect)changeXWithFrame:(CGRect)originalFrame point:(CGPoint)point{
    BOOL q1 = originalFrame.origin.x >= 0;
    BOOL q2 = originalFrame.origin.x + originalFrame.size.width <= screenW;
    
    if (q1 && q2) {
        originalFrame.origin.x += point.x;
    }
    return originalFrame;
}

//Drag to change the vertical y value of the control
- (CGRect)changeYWithFrame:(CGRect)originalFrame point:(CGPoint)point{
    
    BOOL q1 = originalFrame.origin.y >= 0;
    BOOL q2 = originalFrame.origin.y + originalFrame.size.height <= screenH;
    if (q1 && q2) {
        originalFrame.origin.y += point.y;
    }
    return originalFrame;
}

Knowledge 4: control movement - cross boundary processing (out of screen)

//Record whether the button screen is out of range
        BOOL isOver = NO;
        if (frame.origin.x < 0) {
            frame.origin.x = 0;
            isOver = YES;
            
        } else if (frame.origin.x + frame.size.width > screenW) {
            frame.origin.x = screenW - frame.size.width;
            isOver = YES;
        }

        if (frame.origin.y < 0) {
            frame.origin.y = 0;
            isOver = YES;
            
        } else if (frame.origin.y+frame.size.height > screenH) {
            frame.origin.y = screenH - frame.size.height;
            isOver = YES;
        }
        
        if (isOver) {
            //If you cross the border - run back
            [UIView animateWithDuration:0.3 animations:^{
                self.frame = frame;
            }];
        }

Knowledge 5: packaging requirements - horizontal or vertical sliding or global sliding only if Limited

MNAssistiveTouchTypeNone = 0,         //There's no limit to moving around
MNAssistiveTouchTypeVerticalScroll,   //Can only move vertically
MNAssistiveTouchTypeHorizontalScroll, //Can only move vertically

  switch (type) {
        case MNAssistiveTouchTypeNone:
        {
            Horizontal coordinate + +;
            Vertical coordinate + +;
            break;
        }case MNAssistiveTouchTypeHorizontalScroll:{
            Vertical coordinate + +;
            break;
        }
        case MNAssistiveTouchTypeVerticalScroll:{
            Horizontal coordinate + +;
            break;
        }
    }

usage method

    //Sample demo style
    MNAssistiveBtn *btn = [MNAssistiveBtn mn_touchWithType:MNAssistiveTouchTypeHorizontalScroll
                                                     Frame:frame
                                                     title:title
                                                titleColor:[UIColor whiteColor]
                                                 titleFont:[UIFont systemFontOfSize:11]
                                           backgroundColor:nil
                                           backgroundImage:[UIImage imageNamed:@"test"]];
    [self.window addSubview:btn];

Final style presentation~

Integration approach

1.CocoaPods : pod MNFloatBtn

2. Manual import: drag into MNFloatBtn folder

usage method

Import header file, import < mnfloatbtn / mnfloatbtn. H > One line code, display hover button

• Show hover button in any case

[MNFloatBtn show];

• Display hover button only in Debug mode (recommended)

[MNFloatBtn showDebugModeWithType:MNAssistiveTypeNone];

• Remove the hover button to display on the interface

[MNFloatBtn hidden];

• Button click event

[MNFloatBtn sharedBtn].btnClick = ^(UIButton *sender) {

	NSLog(@btn.btnClick ~);
    
};

Advanced usage:

• Display current date by default

[[MNFloatBtn sharedBtn] setBuildShowDate:YES];

• Configure api environment display

#define kAddress            @"testapi.miniLV.com"
//#define kAddress            @"devapi.miniLV.com"
//#define kAddress            @"api.miniLV.com"
    
//Self configuration - what tags to display in what api environment
NSDictionary *envMap = @{
                         @"test":@"testapi.miniLV.com",
                         @"Development":@"devapi.miniLV.com",
                         @"production":@"api.miniLV.com"
                         };
                             
//Set up different title s to be displayed in different environments, as well as the current Host
[[MNFloatBtn sharedBtn]setEnvironmentMap:envMap currentEnv:kAddress]; 
    

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