Android programming enables canvas to draw columnar statistical chart [automatically calculate width, height and division value, and slide left and right]

This paper gives an example of Android programming to realize the function of canvas drawing cylindrical statistical chart. Share with you for your reference, as follows:

A simple columnar statistical chart is realized here, as follows:

characteristic:

1. Automatically calculate the height, width and spacing of each item according to the data source, and automatically calculate the division value.

2. When the number of items is large, you can slide left and right to view all the contents. The graphics and text slide synchronously, and will gradually stop (rather than stop immediately) after you let go.

code:

(1) Core code: barchartview.java

(2) Use of this custom component:

Click here to download the complete example code.

More readers interested in Android related content can view the special topics of this site: summary of Android graphics and image processing skills, introduction and advanced tutorial of Android development, summary of Android debugging skills and common problem solving methods, summary of Android basic component usage, summary of Android view skills, summary of Android layout skills, and Android control usage summary

I hope this article will help you in Android programming.