Here is the walkthrough to Dooors 5 Level 7
Dooors 5 Level 7 – Tap and Drag the Screen to the Left Corner to see the Door. Tap and Drag the Gallon Drum Can infront of the Door. Again Tap and Drag the Screen to the Right most Corner to See Three Gallon Drum Can. Drag the Three to Left and see an Hole in the side wall. Use the Crow bar into the Hole. Use the Hammer to hit the Crowbar into the Hole. Again move to the Door. Tap the Door to Open it and Escape.