density 密度密度和dpi相关，dpi每英寸的点数
densityDp{DENSITY_LOW = 120 DENSITY_MEDIUM = 160 //默认值 DENSITY_TV = 213 //TV专用 DENSITY_HIGH = 240 DENSITY_XHIGH = 320 DENSITY_400 = 400 DENSITY_XXHIGH = 480 DENSITY_XXXHIGH = 640 }
private void getDensity() { DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); Log.d(TAG,"Density is "+displayMetrics.density+" densityDpi is "+displayMetrics.densityDpi+" height: "+displayMetrics.heightPixels+ " width: "+displayMetrics.widthPixels); }
对角线的长度private void getScreenSizeOfDevice() { DisplayMetrics dm = getResources().getDisplayMetrics(); int width=dm.widthPixels; int height=dm.heightPixels; double x = Math.pow(width,2); double y = Math.pow(height,2); double diagonal = Math.sqrt(x+y); int dens=dm.densityDpi; double screenInches = diagonal/(double)dens; Log.d(TAG,"The screenInches "+screenInches); }
转载于:https://www.cnblogs.com/zhujiulunjian/p/6723256.html
