Android Add picture naming rules

When we add images under the drawable file of Android, we often cause a series of problems due to the nonstandard image naming.

1. When named, if the naming error, according to the system Information Invalid file name:must contain only [a-z0-9_.]

The name can be named by lowercase letters and numbers and underscores and '. ' and starts with a lowercase letter, which cannot be preceded by an underscore or a number

2.default and continue are special reserved symbols for Java, which will be translated into Java code and will appear when the image is named.

Invalid symbol: ' Default ' and other errors

3. When the image is dragged directly from the outside (named irregular image), the system will not be named incorrectly like a pop-up in the normal naming.

At this time the Android project will not error, but there will be r.id.xxx, such as the identification of the problem, because the R file does not generate the corresponding ID

4. There is also one of the most troubling point, when the 3rd situation occurs, there will be a subsequent addition of the other controls to identify the ID of the problem, so when the control ID is not recognized, you can check the drawable file in the image naming

Welcome to indicate errors or additions

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Android Add picture naming rules