我如何在Uinavigationbar上制作uiview

Question

I am doing one iphone app. In this app i want to disable the back navigationleftbarbutton . I have used this below code for disable the navigationleftbarbutton but it is not working. Now i have created one view and i have added in uinavigationbar. But now i want to make that view in transparent view. And also how can i remove my customview(myview1) from the navigationbar. I have attached my code. please some body help me to solve my issue.

Disable Code:

self.navigationItem.leftBarButtonItem setEnabled:NO];

And This is my customview Code:

myview1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 40)];
myview1.backgroundColor = [UIColor redColor];
button = [[UIBarButtonItem alloc]initWithCustomView:myview1];
self.navigationItem.leftBarButtonItem = button;

How can i make myview is transparent view. And how can i remove mycustomview(myview1) from navigationbar. Thanks in advance.

Answer 1

you can hide navigation back button by writing code below:

self.navigationItem.leftBarButtonItem.hidden = YES;

and your view ie myview can be transparent by changing alpha value of the view

[myview setAlpha:0.3];   //alpha value ranges from 0 to 1

By settign alpha value 0.0 makes view transparent and increases transparency as u increases alpha value