How to Use third-party jar packages on Android platforms

The online search results show that they are added by adding the build path or using the user library. I don't know whether these complicated pasting persons have been tested or not, but I have never been able to perform the test for a long time, it is estimated that my RP will not work, so that it will pass the compilation after being added, but an error such as class cannot be found will be prompted during running.

I added it like this. After testing, compilation and running are all correct;

Right-click the project,
Build path,
Java build path, select Libraries
Click "add library" in the button on the right"
Select "User library" and click "Next"
Click "User librarys ".
On the displayed page, click "new ...".
In the pop-up interface, enter a name and click "OK"
Click "add jars" to select a third-party jar package and click "OK.

The subsequent steps are very important if you do not perform subsequent operations. There will be no errors when compilation is passed in eclipse, but errors such as Java. Lang. noclassdeffounderror may occur when running on a simulator or a real machine:

1. Create a libs folder under the root directory of the android project;

2. Copy the required third-party jar package to this directory;

3. Right-click the libs directory and choose bulid path-> use as source folder.

This is done. Very simple.