Learning flutter quick and dirty guide



I find it easier to go through :-

1. Widget catalog - to check out what are the widget available in flutter. Basically their capabilities.

2. Cook book - All the code you need to quickly spin out a UI element. Pretty limited but you get an idea.

3. Code labs - is so much better compare to "Writing your first app" write up.


Hope this helps. 

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The specified initialization vector (IV) does not match the block size for this algorithm

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If you're getting  exception when trying to assigned key to a symmetric key and getting error message below :- The specified initialization vector (IV) does not match the block size for this algorithm And your code probably look like something below :- Then you need to go into debug mode and start looking into the supported size for IV as shown in diagram below :- As you can see, IV is 16 bytes, so you need to provide 16 bytes. The same goes for Key field too, if you're adding anything to it. As long as you provide a valid key size, then we're good and you're code will be ready.
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