How to convert dp, dip, sp, and px in Android

Android has many measurement units, such as commonly used dp, dip, sp, px, etc. Sometimes they need to be converted to each other. The following is a very convenient method:

For example, convert sp to px:

TypedValue. applyDimension (TypedValue. COMPLEX_UNIT_SP, value, metric );

The following is a prototype of the applyDimension function:

Float android. util. TypedValue. applyDimension (int unit, float value, DisplayMetrics metric)

You can use the following method to obtain metric

DisplayMetrics metric = new DisplayMetrics ();
GetWindowManager (). getDefaultDisplay (). getMetrics (metric );

 

You can change the unit:

TypedValue. COMPLEX_UNIT_DIP, TypedValue. COMPLEX_UNIT_DP