像素密度(dpi)

float xdpi = getResources().getDisplayMetrics().xdpi;
float ydpi = getResources().getDisplayMetrics().ydpi;
Log.d("MainActivity", "xdpi is " + xdpi);
Log.d("MainActivity", "ydpi is " + ydpi);

屏幕长宽(px)

float xpx = getResources().getDisplayMetrics().widthPixels;
float ypx = getResources().getDisplayMetrics().heightPixels;
Log.d("MainActivity", "xpx is " + xpx);
Log.d("MainActivity", "ypx is " + ypx);

在像素密度为160dpi的设备上1dp=1px,

在像素密度为320dpi的设备上1dp=2px.

04-27 05:54