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If you want to adapt to the same application on different phone models, if you do not use px for all dp in xml, there is still a possibility of adaptation problems!There are countless mistakes and I think I am using dp. Why does the proportion on mobile phone A look different from that on mobile phone B, why is it displayed on mobile phone A while on mobile phone B on the screen?Every explanation is very tiring, so I wrote this blog First, clarify several conceptsThe density value indicates the

After querying to the system service being executed, you can then add the service name to the Dumpsys and view the specified service information.ADB shell Dumpsys ActivityADB Shell Dumpsys Cpuinfoadb shell Dumpsys Batteryadb Shell Dumpsys window (the last part can see the resolution information) =====-------------------------------------------------Android developers about DP documentation I've seen n times, the conversion formula for PX and DP I remember very well: px = DP * (dpi/160) , the ori

iphone ideal viewport width is 320px, regardless of its screen width is 320 or 640, that is, in the iphone, the 320px in the CSS represents the width of the iphone screen.But the Android device is more complex, there are 320px, 360px, 384px, and so on, about the different devices ideal viewport the width of how much, you can go to http://viewportsizes.com to see, which collects the ideal width of many devices.To sum up: PPK the mobile device viewport

, regardless of its screen width is 320 or 640, that is, in the iphone, the 320px in the CSS represents the width of the iphone screen.But the Android device is more complex, there are 320px, 360px, 384px, and so on, about the different devices ideal viewport the width of how much, you can go to http://viewportsizes.com to see, which collects the ideal width of many devices.To sum up: PPK the mobile device viewport into layout viewport , visual viewpo

Notification Method:/** * Call when the keyboard changes frame (position and size)*/- (void)Keyboardwillchangeframe:(Nsnotification *) note{//set the color of the windowSelf.view.window.backgroundColor =Self.tableView.backgroundColor; //0. Time to remove keyboard animationsCGFloat Duration =[Note.userinfo[uikeyboardanimationdurationuserinfokey] doublevalue]; //1. Get the last frame of the keyboardCGRect Keyboardframe =[Note.userinfo[uikeyboardframeenduserinfokey] cgrectvalue]; //2. Calculate the

. All iphone ideal viewport width is 320px, regardless of its screen width is 320 or 640, that is, in the iphone, the 320px in the CSS represents the width of the iphone screen.But the Android device is more complex, there are 320px, 360px, 384px, and so on, about the different devices ideal viewport the width of how much, you can go to http://viewportsizes.com to see, which collects the ideal width of many devices.To sum up: PPK the mobile device vie

size, different devices have different ideal viewport. All iphone ideal viewport width is 320px, regardless of its screen width is 320 or 640, that is, in the iphone, the 320px in the CSS represents the width of the iphone screen.But the Android device is more complex, there are 320px, 360px, 384px, and so on, about the different devices ideal viewport the width of how much, you can go to http://viewportsizes.com to see, which collects the ideal widt

as Apple continues to launch new models, it is well known that UI layouts in iOS development often need to be adapted, and that the adaptation of Apple devices is primarily the 4,5,6,6plus of the 4 devices. The adaptation method has code adaptation and the use of xib to add constraints, where the code adaptation is used to AutoLayout but the official launch of the document and demo is really cumbersome, personally think it is not as stupid as a way to use the aspect ratio of the reality (but the

text, not because in a high-density pixel screen is too small to see, Ideally, this 14px of text, regardless of the density of the screen, at what resolution, the size of the display is similar. Of course, not just text, other elements like pictures and so is the truth. PPK called this viewport the ideal viewport, the ideal viewport--for a third viewport mobile device.Ideal viewport does not have a fixed size, different devices have different ideal viewport. All iphone ideal viewport width is 3

iphone ideal viewport width is 320px, regardless of its screen width is 320 or 640, that is, in the iphone, the 320px in the CSS represents the width of the iphone screen.But the Android device is more complex, there are 320px, 360px, 384px, and so on, about the different devices ideal viewport the width of how much, you can go to http://viewportsizes.com to see, which collects the ideal width of many devices.To sum up: PPK the mobile device viewport

iphone ideal viewport width is 320px, regardless of its screen width is 320 or 640, that is, in the iphone, the 320px in the CSS represents the width of the iphone screen.But the Android device is more complex, there are 320px, 360px, 384px, and so on, about the different devices ideal viewport the width of how much, you can go to http://viewportsizes.com to see, which collects the ideal width of many devices.To sum up: PPK the mobile device viewport

(*. *) |*.* ";//Button2//This.button2.Location = new System.Drawing.Point (120, 192);This.button2.Name = "Button2";This.button2.Size = new System.Drawing.Size (112, 23);This.button2.TabIndex = 11;This.button2.Text = "Get program file Information";This.button2.Click + = new System.EventHandler (This.button2_click);//Label1//This.label1.Location = new System.Drawing.Point (16, 24);This.label1.Name = "Label1";This.label1.Size = new System.Drawing.Size (320