android - Quelle est la différence entre px, dip, dp et sp

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                          Lower resolution screen     Higher resolution, same size Physical Width                      1.5 inches                        1.5 inches Dots Per Inch (“dpi”)               160                               240 Pixels (=width*dpi)                 240                               360 Density (factor of baseline 160)    1.0                               1.5  Density-independent pixels          240                               240 (“dip” or “dp” or “dps”)  Scale-independent pixels   (“sip” or “sp”)                  Depends on user font size settings    same