android - S Pen and ProGuard issue when creating canvas -

i running issue w/ s pen sdk v2.3 , proguard v4.9 non-signed apk enables me use entire canvas/note whereas signed apk, gives me access partial note - 1 half of note, while visible, doesn't allow me write.

i mucked around lot w/ proguard config , yet have no luck. tried creating signed apk simple s pen project , can work expected. however, there must in package preventing me accessing note.

here proguard.cfg:

-optimizations !code/simplification/arithmetic,!field/*,!class/merging/* -optimizationpasses 5 -dontusemixedcaseclassnames -dontskipnonpubliclibraryclasses -dontskipnonpubliclibraryclassmembers -dontpreverify -verbose  -dontwarn com.google.common.** -dontwarn org.apache.commons.* -dontwarn org.scribe.services.* -dontwarn com.fasterxml.jackson.databind.** #after updating android support library rev.18 -dontwarn android.support.v4.**  # activities, services , broadcast receivers specified in manifest file won't automatically included -keep public class * extends android.app.activity -keep public class * extends android.app.application -keep public class * extends android.app.service -keep public class * extends android.content.broadcastreceiver -keep public class * extends android.content.contentprovider -keep public class * extends android.app.backup.backupagenthelper -keep public class * extends android.preference.preference -keep public class com.android.vending.licensing.ilicensingservice -keep public class com.crittercism.**  # hold onto mapping.text file, can used unobfuscate stack traces in developer console using retrace tool -printmapping mapping.txt  -keep public class * extends android.support.v4.app.fragment {     *; } -keep public class * extends android.widget.framelayout {     *; } -keep public class * extends android.view.view {     *; } -keep public class com.mypackage.fragments.videonotefragment {     public protected *;  }  -keep public class com.mypackage.ui.notesview {     public protected *; }  #suggestions spen engineering team -keep public interface *$* {     public *; }  #for spen -keep public class com.samsung.spensdk.* {     public protected *; }  -keep public class com.samsung.spensdk.applistener.* {     public protected *; }  -keep public class com.samsung.samm.common.* {     public protected *; }  -keep public class com.samsung.spen.lib.image.* {     public protected *; }  -keep public class com.samsung.spen.lib.input.* {     public protected *; }  -keep public class com.samsung.spen.lib.gesture.* {     public protected *; }  -keep public class com.samsung.spen.settings.* {     public protected *; }  # keep - enumerations. keep special static methods # required in enumeration classes. -keepclassmembers enum * {     public static **[] values();     public static ** valueof(java.lang.string); }  # keep names - native method names. keep native class/method names. -keepclasseswithmembers,allowshrinking class * {     native <methods>; }  -keepclasseswithmembernames class * {     native <methods>; }  -keepclasseswithmembers class * {     public <init>(android.content.context, android.util.attributeset); }  # custom view components might accessed layout files -keepclasseswithmembers class * {     public <init>(android.content.context, android.util.attributeset, int); }  # event handlers can specified in layout files e.g. android:onclick="nextbutton_onclick" -keepclassmembers class * extends android.app.activity {    public void *(android.view.view); }  -keep class * implements android.os.parcelable {   public static final android.os.parcelable$creator *; }  -keepclassmembers public class com.crittercism.* {     *; }  -keepclassmembers public class com.fasterxml.jackson.** {      *;  }  #pojo -keep class com.mypackage.data.** {     void set*(***);     void set*(int, ***);      boolean is*();      boolean is*(int);      *** get*();     *** get*(int); }  -renamesourcefileattribute sourcefile -keepattributes exceptions,innerclasses,signature,deprecated,                 sourcefile,linenumbertable,*annotation*,enclosingmethod 

here screenshot of canvas right-half non-writable:

thanks!

boiled down modifying proguard settings so:

-optimizations !code/simplification/arithmetic,!field/*,!class/merging/* -optimizationpasses 5 -dontusemixedcaseclassnames -dontskipnonpubliclibraryclasses -dontskipnonpubliclibraryclassmembers -dontpreverify -verbose  #prints out classes preserved, know sure we're getting want -printseeds  -dontwarn com.google.common.** -dontwarn org.apache.commons.*    -dontwarn com.samsung.** -dontwarn org.scribe.services.* -dontwarn com.fasterxml.jackson.databind.**  # activities, services , broadcast receivers specified in manifest file won't automatically included -keep public class com.android.vending.licensing.ilicensingservice -keep public class com.crittercism.**  # hold onto mapping.text file, can used unobfuscate stack traces in developer console using retrace tool -printmapping mapping.txt  # keep - enumerations. keep special static methods # required in enumeration classes. -keepclassmembers enum * {     public static **[] values();     public static ** valueof(java.lang.string); }  # event handlers can specified in layout files e.g. android:onclick="nextbutton_onclick" -keepclassmembers class * extends android.app.activity {    public void *(android.view.view); }  -keepclassmembers public class com.crittercism.* {     *; }  -keepclassmembers public class com.fasterxml.jackson.** {        *; }  -keep class com.mypackage.data.** {     void set*(***);     void set*(int, ***);      boolean is*();     boolean is*(int);      *** get*();     *** get*(int); }  -renamesourcefileattribute sourcefile -keepattributes exceptions,innerclasses,signature,deprecated,                 sourcefile,linenumbertable,*annotation*,enclosingmethod  -keep class com.samsung.samm.** { *; } -keep class com.samsung.sdraw.** { *; } -keep class com.samsung.spen.** { *; } -keep class com.samsung.spensdk.** { *; } -libraryjars libs/libspen23.jar