Using System.getProperty("line.separator") instead of '\n' and adding pre-caching of licenses text

library/src/main/java/de/psdev/licensesdialog/licenses/ApacheSoftwareLicense20.java

@@ -23,19 +23,29 @@ public class ApacheSoftwareLicense20 extends License {
 
     private static final long serialVersionUID = 4854000061990891449L;
 
+    private String cachedSummaryText = null;
+    private String cachedFullText = null;
+
     @Override
     public String getName() {
         return "Apache Software License 2.0";
     }
 
     @Override
     public String getSummaryText(final Context context) {
-        return getContent(context, R.raw.asl_20_summary);
+        if (cachedSummaryText == null) {
+            cachedSummaryText = getContent(context, R.raw.asl_20_summary);
+        }
+
+        return cachedSummaryText;
     }
 
     @Override
     public String getFullText(final Context context) {
-        return getContent(context, R.raw.asl_20_full);
+        if (cachedFullText == null) {
+            cachedFullText = getContent(context, R.raw.asl_20_full);
+        }
+        return cachedFullText;
     }
 
     @Override

library/src/main/java/de/psdev/licensesdialog/licenses/BSD3ClauseLicense.java

@@ -23,19 +23,29 @@ public class BSD3ClauseLicense extends License {
 
     private static final long serialVersionUID = -5205394619884057474L;
 
+    private String cachedSummaryText = null;
+    private String cachedFullText = null;
+
     @Override
     public String getName() {
         return "BSD 3-Clause License";
     }
 
     @Override
     public String getSummaryText(final Context context) {
-        return getContent(context, R.raw.bsd3_summary);
+        if (cachedSummaryText == null) {
+            cachedSummaryText = getContent(context, R.raw.bsd3_summary);
+        }
+
+        return cachedSummaryText;
     }
 
     @Override
     public String getFullText(final Context context) {
-        return getContent(context, R.raw.bsd3_full);
+        if (cachedFullText == null) {
+            cachedFullText = getContent(context, R.raw.bsd3_full);
+        }
+        return cachedFullText;
     }
 
     @Override

library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttributionNoDerivs30Unported.java

@@ -21,19 +21,29 @@
 
 public class CreativeCommonsAttributionNoDerivs30Unported extends License {
 
+    private String cachedSummaryText = null;
+    private String cachedFullText = null;
+
     @Override
     public String getName() {
         return "Creative Commons Attribution-NoDerivs 3.0 Unported";
     }
 
     @Override
     public String getSummaryText(final Context context) {
-        return getContent(context, R.raw.ccand_30_summary);
+        if (cachedSummaryText == null) {
+            cachedSummaryText = getContent(context, R.raw.ccand_30_summary);
+        }
+
+        return cachedSummaryText;
     }
 
     @Override
     public String getFullText(final Context context) {
-        return getContent(context, R.raw.ccand_30_full);
+        if (cachedFullText == null) {
+            cachedFullText = getContent(context, R.raw.ccand_30_full);
+        }
+        return cachedFullText;
     }
 
     @Override

library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense20.java

@@ -21,19 +21,29 @@
 
 public class GnuGeneralPublicLicense20 extends License {
 
+    private String cachedSummaryText = null;
+    private String cachedFullText = null;
+
     @Override
     public String getName() {
         return "GNU General Public License 2.0";
     }
 
     @Override
     public String getSummaryText(final Context context) {
-        return getContent(context, R.raw.gpl_20_summary);
+        if (cachedSummaryText == null) {
+            cachedSummaryText = getContent(context, R.raw.gpl_20_summary);
+        }
+
+        return cachedSummaryText;
     }
 
     @Override
     public String getFullText(final Context context) {
-        return getContent(context, R.raw.gpl_20_full);
+        if (cachedFullText == null) {
+            cachedFullText = getContent(context, R.raw.gpl_20_full);
+        }
+        return cachedFullText;
     }
 
     @Override

library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense30.java

@@ -21,19 +21,29 @@
 
 public class GnuGeneralPublicLicense30 extends License {
 
+    private String cachedSummaryText = null;
+    private String cachedFullText = null;
+
     @Override
     public String getName() {
         return "GNU General Public License 3.0";
     }
 
     @Override
     public String getSummaryText(final Context context) {
-        return getContent(context, R.raw.gpl_30_summary);
+        if (cachedSummaryText == null) {
+            cachedSummaryText = getContent(context, R.raw.gpl_30_summary);
+        }
+
+        return cachedSummaryText;
     }
 
     @Override
     public String getFullText(final Context context) {
-        return getContent(context, R.raw.gpl_30_full);
+        if (cachedFullText == null) {
+            cachedFullText = getContent(context, R.raw.gpl_30_full);
+        }
+        return cachedFullText;
     }
 
     @Override

library/src/main/java/de/psdev/licensesdialog/licenses/GnuLesserGeneralPublicLicense21.java

@@ -22,19 +22,29 @@
 
 public class GnuLesserGeneralPublicLicense21 extends License {
 
+    private String cachedSummaryText = null;
+    private String cachedFullText = null;
+
     @Override
     public String getName() {
         return "GNU Lesser General Public License 2.1";
     }
 
     @Override
     public String getSummaryText(final Context context) {
-        return getContent(context, R.raw.lgpl_21_summary);
+        if (cachedSummaryText == null) {
+            cachedSummaryText = getContent(context, R.raw.lgpl_21_summary);
+        }
+
+        return cachedSummaryText;
     }
 
     @Override
     public String getFullText(final Context context) {
-        return getContent(context, R.raw.lgpl_21_full);
+        if (cachedFullText == null) {
+            cachedFullText = getContent(context, R.raw.lgpl_21_full);
+        }
+        return cachedFullText;
     }
 
     @Override

library/src/main/java/de/psdev/licensesdialog/licenses/ISCLicense.java

@@ -22,19 +22,29 @@
 public class ISCLicense extends License {
     private static final long serialVersionUID = -4636435634132169860L;
 
+    private String cachedSummaryText = null;
+    private String cachedFullText = null;
+
     @Override
     public String getName() {
         return "ISC License";
     }
 
     @Override
     public String getSummaryText(final Context context) {
-        return getContent(context, R.raw.isc_summary);
+        if (cachedSummaryText == null) {
+            cachedSummaryText = getContent(context, R.raw.isc_summary);
+        }
+
+        return cachedSummaryText;
     }
 
     @Override
     public String getFullText(final Context context) {
-        return getContent(context, R.raw.isc_full);
+        if (cachedFullText == null) {
+            cachedFullText = getContent(context, R.raw.isc_full);
+        }
+        return cachedFullText;
     }
 
     @Override

library/src/main/java/de/psdev/licensesdialog/licenses/License.java

@@ -64,9 +64,10 @@ protected String getContent(final Context context, final int contentResourceId)
 
     private String toString(final BufferedReader reader) throws IOException {
         final StringBuilder builder = new StringBuilder();
+        String lineSeparator = System.getProperty("line.separator");
         String line = null;
         while ((line = reader.readLine()) != null) {
-            builder.append(line).append('\n');
+            builder.append(line).append(lineSeparator);
         }
         return builder.toString();
     }

library/src/main/java/de/psdev/licensesdialog/licenses/MITLicense.java

@@ -23,19 +23,29 @@ public class MITLicense extends License {
 
     private static final long serialVersionUID = 5673599951781482594L;
 
+    private String cachedSummaryText = null;
+    private String cachedFullText = null;
+
     @Override
     public String getName() {
         return "MIT License";
     }
 
     @Override
     public String getSummaryText(final Context context) {
-        return getContent(context, R.raw.mit_summary);
+        if (cachedSummaryText == null) {
+            cachedSummaryText = getContent(context, R.raw.mit_summary);
+        }
+
+        return cachedSummaryText;
     }
 
     @Override
     public String getFullText(final Context context) {
-        return getContent(context, R.raw.mit_full);
+        if (cachedFullText == null) {
+            cachedFullText = getContent(context, R.raw.mit_full);
+        }
+        return cachedFullText;
     }
 
     @Override