you cant at least not yet as at the moment you cant craft in the pocket addition.
Impossible. If you are in Creative Mode, you can not craft!!
You can't currently get flint in Minecraft PE.
you have to be in creative at first
No
No
ina jungle
nope
Yes it does.
You can't yet
In Minecraft PE 0.7.1, you can create spawners using commands or by accessing creative mode. However, the game does not natively allow players to craft or place spawners in survival mode. If you’re in creative mode, simply select the desired spawner item from your inventory and place it in your world. For custom spawners, you may need to use third-party mods or tools, as the game’s version is limited in features compared to later updates.
you hold the jump button (middle button)