Android px to dip px to SP rule

In some cases, the artist often give me the PX this time we need to according to the screen resolution to turn PX into a dip or SP below is the calculation formula:

<framelayout xmlns:android= "http://schemas.android.com/apk/res/android"    xmlns:tools= "http// Schemas.android.com/tools "    android:layout_width=" match_parent "    android:layout_height=" Match_parent "    tools:context= ". Mainactivity "     android:background=" @android: Color/white ">            <button         android:id=" @+id/button "        android:layout_width= "wrap_content"        android:layout_height= "wrap_content"        android:layout_gravity= "Center"        android:padding= "20DP"        android:text= "Start"/>   </FrameLayout>

Package Com.example.test5;import Android.app.activity;import Android.content.context;import android.os.Bundle; Import Android.util.displaymetrics;import Android.util.log;import Android.view.view;import Android.view.view.onclicklistener;import Android.view.window;import Android.widget.toast;public class MainActivity Extends Activity {@Overrideprotected void onCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Requestwindowfeature (Window.feature_no_title); Setcontentview (R.layout.main); Findviewbyid (R.id.button). Setonclicklistener (New Onclicklistener () {@Overridepublic void OnClick (View v) {Test ();}}); public boolean Isgreaterthan (string time) {string Time1=time.replace (":", ""). Trim (); String time2= "0130"; return Integer.parseint (time2)-integer.parseint (time1) <=0;}  private void Test () {final float Fontscale = this.getresources (). Getdisplaymetrics (). scaleddensity; Final float scale = this.getresources (). Getdisplaymetrics (). Density;int screenwidth = Getwindowmanager (). GetDefaultdisplay (). GetWidth ();    int screenheight = Getwindowmanager (). Getdefaultdisplay (). GetHeight ();      Displaymetrics dm = new Displaymetrics ();      DM = new Displaymetrics ();      Getwindowmanager (). Getdefaultdisplay (). Getmetrics (DM);         float density = dm.density;  float densitydpi = dm.densitydpi; LOG.D ("text", "scale=" +scale+ "fontscale=" +fontscale+ "screenwidth=" +screenwidth+ "screenheight=" +screenHeight); LOG.D ("text", "density=" +density+ "densitydpi=" +densitydpi); int A=PX2SP (26,scale); String S1=px2dip (this,13) + ""; String S6=px2dip (this,60) + ""; String S7=px2dip (this,11) + ""; String S8=px2dip (this,162) + ""; String S9=px2dip (this,232) + ""; String S10=px2dip (this,44) + ""; String S11=px2dip (this,178) + ""; String S12=px2dip (this,610) + ""; String S13=px2dip (this,420) + ""; String S14=px2dip (this,126) + ""; String S2=px2dip (this,32) + ""; String S3=PX2SP (Fontscale) + ""; String S4=PX2SP (Fontscale) + ""; String S5=PX2SP (Fontscale) + ""; System.out.println ("S1:" +s1+ "-----" + "S6:" +s6+ "-----" + "S7:"+s7+ "-----" + "S8:" +s8+ "-----" + "S9:" +s9+ "-----" + "S10:" +s10+ "-----" + "S11:" +s11+ "-----" + "S12:" +s12+ "-----" + "S13:" + s13+ "-----" + "S14:" +s14+ "-----" + "s2:" +s2+ "-----" + "S3" +s3+ "-----" + "S4" +s4+ "-----" + "S5" +s5+ "-----");} public static int dip2px (context context, float Dpvalue) {final float scale = context.getresources (). Getdisplaymetrics ().        Density;return (int) (Dpvalue * scale + 0.5f);} public static int Px2dip (context context, float Pxvalue) {final float scale = context.getresources (). Getdisplaymetrics ().        Density;return (int) (Pxvalue/scale + 0.5f);}        public static int px2sp (float pxvalue, float fontscale) {return (int) (Pxvalue/fontscale + 0.5f);}        public static int sp2px (float spvalue, float fontscale) {return (int) (Spvalue * fontscale + 0.5f);}    public void ST (String s) {Toast.maketext (this, S, Toast.length_short). Show (); }}

Source Download

Android px to dip px to SP rule