Resolves a warning issue when writing ImageView in eclipse

Eclipse wrote an android program where Main.xml ImageView is a Huang number! Don't know why?

Workaround:

android:contentdescription= "@string/desc" plus this attribute is OK.

Answer:

What is the role of android:contentdescription?

When writing an XML layout file for Android, you often encounter a hint in ImageView or ImageButton:

Missing contentdescription attribute on image.

What does this attribute do?

In fact, this property is convenient for some of the physiological functions of the people who are defective using the application. For example, we have a imageview inside to put a color complex picture, perhaps some blindness colour-blind people, can not tell the picture of what is painted. If a user installs a secondary Browse tool such as talkback,talkback, it will read aloud what the user is currently browsing. TextView control talkback can read the contents directly, but ImageView talkback can only read the value of ContentDescription, tell the user what this picture is.

Resolves a warning issue when writing ImageView in eclipse