So you've copied a valid bitcoin address from another application... and when you click the "paste" button in Electrum it doesn't do anything?
I've just tested this by copying the example bitcoin address from this page: https://en.bitcoin.it/wiki/Address (1BvBMSEYstWetqTFn5Au4m4GFg7xJaNVN2)... Then went into Android Electrum and clicked the "paste" button, the address was put into the "recipient" field fine.
Do you get any error like "invalid bitcoin URI" or anything when you click "paste"?
I've just tested this by copying the example bitcoin address from this page: https://en.bitcoin.it/wiki/Address (1BvBMSEYstWetqTFn5Au4m4GFg7xJaNVN2)... Then went into Android Electrum and clicked the "paste" button, the address was put into the "recipient" field fine.
Do you get any error like "invalid bitcoin URI" or anything when you click "paste"?