AndroidStudio development of Android small knowledge points

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001: app removes the name at the top of the interface

Open the src->main->res->values->styles.xml of the
project and change

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">

change into

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">

002: Change app icon

注：我的图片名字叫做app，所以代码中的app指的是图片的名字。

        android:icon="@mipmap/app"
        android:roundIcon="@mipmap/app"
        
两行代码都需要更换，建议保持统一，小写。
app的logo放mipmap文件夹，其余图片放drawable文件夹。

003: ViewBinding technology

Instead of findViewById and butter knife technology, it is safe and efficient, produced by Google.

原博客地址：
https://blog.csdn.net/jklwan/article/details/102767871
https://www.cnblogs.com/ymtianyu/p/13208548.html

004: AndroidStudio 3.5 version is the eternal god in my heart