Programmer Think

Almost every function should havePreparation: request version update to get the link to download apk, For example:“ http://yibanyue.oss-cn-hangzhou.xxx.com/apk/yiyue.apk"Process: request version update link to get the link, pop-up box to ask if it is updated, create apk folder locally, Download apk with DownloadManager, and put the path i ...

From: http://blog.csdn.net/wenwen091100304/article/details/49667293, good summary Introduction The Chinese meaning selector is often used as the background of components in Android. The advantage of doing this is that it does not need to use code control to realize the transformation of different background colors or pictures of compo ...

1, Decompilation Decompress apk with compressed package management software (such as WinRAR, WinZIP, etc.) to get the classes.dex file, and put the file in the dex2jar folder. Use the dex2 jar tool software to get the corresponding jar files. (1) Open the command line interface. (2) Navigate to the directory where d ...

For many functions with search requirements, it is generally necessary to display the latest n historical search records, mainly including the following function points: The most recent search items are placed first, and the earliest search records are placed last. Only record the latest n data. If there are more than n search records, delet ...

Basic types Basic types used in Kotlin: numbers, characters, Booleans, arrays, and strings. number Type Bit Double 64 loat 32 Long 64 Int 32 Short 16 Byte 8 Representation In Kotlin, the values can be expressed literally as follows: Decimal: 123 Long type is marked with capital L: ...

The event / whole event sequence in the event sequence is processed (i.e. transformed) to different event / whole event sequence map Each event sent by the observed is processed by a specified function, so that it can be transformed into another event That is, the event sent by the observer is converted to any type of event. Application sc ...

The image view control of android is very common. It's easy to display pictures. Just set the picture source. Generally, we use the resources in the APP to achieve this. The original image file is placed in drawable or mipmap under res. What I want to achieve this time is to let the control display a picture by default. When I click a button, t ...

android sets button style (border color, fillet) and picture style (fillet) Set button border color: Create a new button? Edge.xml file in drawable <?xml version="1.0" encoding="UTF-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <!-- Border color value --><item> < ...

Recently, I met a requirement in my own project to convert the standard day yyyy MM DD into a specific cycle, that is, the day of the week. By looking up the data, we found that Android has provided us with a powerful date tool Calendar class, through which we can quickly realize the conversion between dates. Here, I have encapsulated it as a ...

1. Renderings 2. Custom attributes textColor font color textSize font size Time displayed in duration text 3. Instructions Step 1. Add it in your root build.gradle at the end of repositories: allprojects { repositories { ... maven { url 'https://jitpack.io' } } ...