Programmer Think

1, Value passing between Activity and Activity First create two activities, one is MainActivity and the other is SecondActivity Then add a Button in activity main.xml, the code is as follows: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app ...

The new module of item 1 has an icon on the right which is displayed in the upper right corner, as shown in the figure After thinking about how to use shape to draw a background, put it in the upper right corner, draw out the words as if there is a problem in putting them on the display, google it and find a piece of informati ...

scene Android layout manager - use LinearLayout to realize simple login window layout: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/103838995 Frame layout manager FrameLayout     Realization effect       Note: Blog: https://blog.csdn.net/badao_liumang_qizhi Pay attention to the public address Domineering procedural ape Get progr ...

I. principle First of all, put these pictures and some text to be rotated in different data sets. When the program starts, a set of pictures and text data will be displayed by default, and then a timer will be started to replace the displayed pictures and text data every other period of time. At the same time, some animation e ...

Daily Star Language: "Do you know what is the biggest problem of poverty when you are young?" "What" "It's a poor mistake to think that everything you can't get is poor. Eyes are fixed on distant places, but can't see the beauty of a flower nearby. " September 7, 2018 20:30:30 Friday Today, there is a problem. Wh ...

1, Brief introduction to RAM and ROM RAM refers to running memory. For example, the floating window of 360 mobile assistant often prompts that the running memory is more than 80%. It refers to running memory. The general size is a few G. ROM is the memory for storing data. For example, the "total space 31.6G, the remaini ...

One of the requirements of the APP in the previous work is to cycle and rotate a bunch of pictures and texts. So I used the ScrollView magic to change this requirement. The following is the operation screen of Demo. The TextView with the number from 0 to 100 is automatically rotated:     The specific implementation is as f ...

Project structure: Train of thought: How to open and close a menu this.smoothScrollTo(0, 0) when opened; the slide menu displays This.smoothscrollto (mmmenuwidth, 0) when closed; menu hidden Write a button outside and click the event to call the toggle method Specific code: In the custom control SlidingMenu package c ...

In development, component layout is the work that everyone must face in daily development. For Android, there are five common layouts, namely: LinearLayout (linear layout) Tablelayout (table layout) Relativelayout Absolute layout FrameLayout (frame layout) However, if we can layout the interface in a percentage way in th ...

In the layout file activity > main.xml, add two nested < LinearLayout > in the vertical linear layout manager < LinearLayout > added by default, then set the first < LinearLayout > arrangement as horizontal arrangement, add four horizontally side-by-side TextView components, set the text alignment of TextVi ...