/** 像素转换工具
*/
public class PixelUtils { /**
* The context.
*/
private static Context mContext = CustomApplcation.getInstance(); /**
* dp转 px.
*
* @param value the value
* @return the int
*/
public static int dp2px(float value) {
final float scale = mContext.getResources().getDisplayMetrics().densityDpi;
return (int) (value * (scale / 160) + 0.5f);
} /**
* dp转 px.
*
* @param value the value
* @param context the context
* @return the int
*/
public static int dp2px(float value, Context context) {
final float scale = context.getResources().getDisplayMetrics().densityDpi;
return (int) (value * (scale / 160) + 0.5f);
} /**
* px转dp.
*
* @param value the value
* @return the int
*/
public static int px2dp(float value) {
final float scale = mContext.getResources().getDisplayMetrics().densityDpi;
return (int) ((value * 160) / scale + 0.5f);
} /**
* px转dp.
*
* @param value the value
* @param context the context
* @return the int
*/
public static int px2dp(float value, Context context) {
final float scale = context.getResources().getDisplayMetrics().densityDpi;
return (int) ((value * 160) / scale + 0.5f);
} /**
* sp转px.
*
* @param value the value
* @return the int
*/
public static int sp2px(float value) {
Resources r;
if (mContext == null) {
r = Resources.getSystem();
} else {
r = mContext.getResources();
}
float spvalue = value * r.getDisplayMetrics().scaledDensity;
return (int) (spvalue + 0.5f);
} /**
* sp转px.
*
* @param value the value
* @param context the context
* @return the int
*/
public static int sp2px(float value, Context context) {
Resources r;
if (context == null) {
r = Resources.getSystem();
} else {
r = context.getResources();
}
float spvalue = value * r.getDisplayMetrics().scaledDensity;
return (int) (spvalue + 0.5f);
} /**
* px转sp.
*
* @param value the value
* @return the int
*/
public static int px2sp(float value) {
final float scale = mContext.getResources().getDisplayMetrics().scaledDensity;
return (int) (value / scale + 0.5f);
} /**
* px转sp.
*
* @param value the value
* @param context the context
* @return the int
*/
public static int px2sp(float value, Context context) {
final float scale = context.getResources().getDisplayMetrics().scaledDensity;
return (int) (value / scale + 0.5f);
} }