Circle, commercial complex layout, image scaling and other controls or examples (GitHub, etc.) Directory

1 CircleImageView circle 

https://github.com/hdodenhof/CircleImageView

https://blog.csdn.net/weixin_43499030/article/details/92799689

2 Commercial complex layout (commercial)

https://blog.csdn.net/qq_34501274/article/details/71194958

https://blog.csdn.net/liaoinstan/article/details/52671101

3. Image zoom

PhotoView  https://github.com/chrisbanes/PhotoView

4. Monitor the soft keyboard closing 

https://blog.csdn.net/johnny901114/article/details/51471729

5. Google official example

https://developer.android.google.cn/samples/

6. Check whether the string is a valid json in java

https://stackoverflow.com/questions/10174898/how-to-check-whether-a-given-string-is-valid-json-in-java

7. BRVAH is a powerful RecyclerAdapter framework BRVAH official usage guide

https://www.jianshu.com/p/b343fcff51b0/

RecyclerView that supports pull-down refresh

https://github.com/Trinea/android-open-project

8.An excellent solution for Android title bar (TitleBar)

https://www.jianshu.com/p/617be02dc265?tdsourcetag=s_pctim_aiomsg

9.10 Android interface designs

https://blog.csdn.net/jongde1/article/details/79170621

10. MPAndroidChart  line chart

https://github.com/PhilJay/MPAndroidChart