Shulou(Shulou.com)06/03 Report--

Writing LED driver controlled by Android

Development platform * Xinlingsi SinlinxA33 Development Board Taobao Shop: https://sinlinx.taobao.com/

Embedded linux development board communicates QQ:641395230 opens Android Studio3.1 to create a new NO Activity project

Switch to the project view, go to the / app/src/main/java/com.xxxxxx directory, and right-click New Activity- > empty Activity

Do not check the * * option.

(check Generate Layout File to automatically create a corresponding layout file for FirstActivity, and check Launcher Activity to automatically set FirstActivity as the main activity of the current project)

Right-click the app/src/main/res directory → New → Directory, a window pops up to create a new directory, and the root element is selected as LinearLayout by default

Click OK to finish creating the layout, and you will see the layout editor shown in the figure. Click the Text on the right

Two Button elements were added.

Register in the AndroidManifest file

Using Toast in an activity

(Toast is a very good reminder provided by the Android system. In the program, you can use it to inform the user of some short information, which will automatically disappear after a period of time and will not take up any screen space.)

Click to run

Running result

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