Is the source of many Android projects online useful? The place to note for Android development.

In the development of Android project, we can see many project source code on the net, most of them are not very exquisite,

such as 06.Android Ford Multimedia Player Development Tutorial + source

What else is the browser source code.

So is this useful? Where is the value?

Fine source code also has, for example, from working there to commercial source code.

Are these sources useful? Where is the use?

It is useless to say that it is useful and useful.  I'm afraid I don't need it many times and need these sources. That's useless.

So don't waste your time messing around. You just have this source resource, but it's a directory for you. There is no need to delve into it at this stage.

Don't waste your precious time. What you want to do, what is useful to you, be clear, be rational.

Don't take a detour. Sometimes you don't need to be proficient at anything, you just need to know that there is such a thing, there is a directory on the line.

Is the source of many Android projects online useful? The place to note for Android development.