He was charged in Sweden which issued a European Arrest warrant which he attempted to appeal unsuccessfully in the UK up to and including the supreme court.

He was released on bail within the UK and had to surrender his passport until the time in which the matter would be settled.

Assange was notified of the European arrest warrant by the UK authorities in late 2010, the whole case dragged out for another 2 years before he sought refuge in the Ecuadorian embassy.

The fact of the matter that Assange lost 2 full appeal processes which resulted in the Swedish Supreme court upholding the arrest warrant, and the UK supreme court upholding the extradition under a lawful European arrest warrants.
These are 2 European western democracies with a functional legal system which unlike what some people might think here isn't exactly the PR department or a henchman of the US government.

Assange has refused to surrender under a lawful arrest warrant and violated the conditions of his bail these are 2 offenses which will on their own will land you in prison regardless of any other charges.
A normal person can't say well fuck it I don't think you should arrest me so screw you after losing an appeal in front of the supreme court, a normal person can't say well fuck it I don't think you should extradite me and I'll just skip bail if you don't mind after losing another appeal process in front of the supreme court.

It doesn't matter what you think about this case, what you think about Assange or WikiLeaks the matter of fact here is that Assange believes he is above the law, and he acted upon his belief by violating laws and seeking refuge in a foreign country without an extradition treaty.

Normal people aren't afforded these luxuries, and if it was some banker or politician who acted in the same manner everyone would been up in arms shouting to get them out of that embassy by force if necessary.
And the claims that the Swedish authorities refusing to depose him in that embassy are some how a sign that the case was manufactured are also insane, the authorities should not humor people who piss on the law, it's not up to some one to decide where they will be deposed especially not after they've broken the law again and are now in a position to say what they want without being touchable.

Say Sweden can depose him, try him in absentia and find him guilty what good would it do? he's still tucked away in a place when they can't touch him, and if they do the same and acquit him it it will show that if you have enough money, power or political capital you can do what ever the fuck you want (which is sadly true probably far too many places) and get preferential treatment just because you are a special snowflake.

At this point even if he goes back to Sweden, tried, and acquitted he should face jail he has spat on the entire legal process in 2 fairly respected western democracies and made a mockery of their legal system, the crimes he committed by hiding in the embassy have nothing to do with the crimes he allegedly committed to prior to that, they didn't lead to this situation, his own actions did.

This isn't a Hollywood movie ala the "Fugitive", you can't just decide that the law doesn't apply to you and run away even if it is to prove your so called innocence while committing other crimes in the process, if you think it's fine then we might as well go back to the wild west with a high noon court or even further in time with trial by combat.