If you’ve ever wanted to show a simple “please wait” dialog without resorting to a custom view, UIAlertView is a good option, and is even more appropriate if you customize the alert such that no buttons are shown.
In the figure below you can see how a simple alert can be shown (sans buttons) while you are busy doing some other system activity (reading/writing files, etc). 
Create a file ic_toggle.xml in your res/drawable folder
<selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_checked="false" android:drawable="@drawable/ic_slide_switch_off" /> <item android:state_checked="true" android:drawable="@drawable/ic_slide_switch_on" /> </selector>
Here @drawable/ic_slide_switch_on & @drawable/ic_slide_switch_off are images you create.
Then create another file in the same folder, name it ic_toggle_bg.xml
<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+android:id/background" android:drawable="@android:color/transparent" /> <item android:id="@+android:id/toggle" android:drawable="@drawable/ic_toggle" /> </layer-list>
Now add to your custom theme, (if you don’t have one create a styles.xml file in your res/values/folder)
<style name="Widget.Button.Toggle" parent="android:Widget"> <item name="android:background">@drawable/ic_toggle_bg</item> <item name="android:disabledAlpha">?android:attr/disabledAlpha</item> </style> <style name="toggleButton" parent="@android:Theme.Black"> <item name="android:buttonStyleToggle">@style/Widget.Button.Toggle</item> <item name="android:textOn"></item> <item name="android:textOff"></item>
This creates a custom toggle button for you.
Now use the custom style and background in your view.
<ToggleButton android:id="@+id/toggleButton" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_gravity="right" style="@style/toggleButton" android:background="@drawable/ic_toggle_bg" />
Here is the answer for hiding:
[self.label1 setHidden:TRUE];
and here is the answer for disabling:
[self.btnOutlet setEnabled:FALSE];
Image is blank because it hasn’t got specified bounds. You may use setCompoundDrawables() but before you should specify image’s bounds, using Drawable.setBounds() method:
Drawable d = getResources().getDrawable(R.drawable.ic_action_selector); d.setBounds(0, 0, 128, 128); btnRegistery.setCompoundDrawables(null, d, null, null);