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[zxing.git] / android / build.xml

diff --git a/android/build.xml b/android/build.xml
index c81a9d4..d619e40 100644 (file)
--- a/android/build.xml
+++ b/android/build.xml
@@ -95,7 +95,7 @@ limitations under the License.
   <property name="source-location" value="${basedir}/${source-folder}" />
 
   <!-- folder for the 3rd party java libraries -->
-  <property name="external-libs-folder" value="../core" />
+  <!--<property name="external-libs-folder" value="../core" />-->
 
   <!-- folder for the native libraries -->
   <property name="native-libs-folder" value="libs" />
@@ -130,8 +130,9 @@ limitations under the License.
 
   <!-- rules -->
 
-  <!-- Create the output directories if they don't exist yet. -->
-  <target name="dirs">
+  <!-- Create the output directories if they don't exist yet. All builds do a clean first
+  to prevent stale resources and to make ProGuard happy. -->
+  <target name="dirs" depends="clean">
     <echo>Creating output directories if needed...</echo>
     <mkdir dir="${resource-folder}" />
     <mkdir dir="${external-libs-folder}" />
@@ -179,9 +180,41 @@ limitations under the License.
       <src path="${gen-folder}" />
       <classpath>
         <fileset dir="${external-libs-folder}" includes="*.jar"/>
+        <!-- yeah, want to not use this mechanism above -->
+        <pathelement path="../core/core.jar"/>
         <pathelement path="${main-out-classes}"/>
       </classpath>
     </javac>
+
+    <unzip src="../core/core.jar" dest="${out-classes}" overwrite="true"/>
+
+    <antcall target="optimize"/>
+  </target>
+
+  <target name="optimize" unless="no-optimize">
+    <mkdir dir="optimized"/>
+    <property name="libraryjars.path" refid="android.target.classpath"/>
+    <java jar="${proguard-jar}" fork="true" failonerror="true">
+      <jvmarg value="-Dmaximum.inlined.code.length=48"/>
+      <arg value="-injars ${out-classes}"/>
+      <arg value="-outjars optimized"/>
+      <arg value="-libraryjars ${libraryjars.path}"/>
+      <arg value="-keep class com.google.zxing.client.android.*Activity"/>
+      <arg value="-keep class com.google.zxing.client.android.ViewfinderView { public * ; }"/>
+      <arg value="-keep class com.google.zxing.client.android.book.SearchBookContents* { public * ; }"/>
+      <!-- This works around some strange Android/ProGuard problem verifying MaskUtil -->
+      <arg value="-keep class com.google.zxing.qrcode.encoder.MaskUtil { public * ; }"/>
+      <arg value="-target 5"/>
+      <!-- Keeping this low also avoids some weird Android/ProGuard issue I couldn't resolve otherwise --> 
+      <arg value="-optimizationpasses 2"/>
+      <arg value="-dontshrink"/>
+      <arg value="-dontobfuscate"/>
+      <arg value="-dontskipnonpubliclibraryclasses"/>
+      <arg value="-verbose"/>
+      <arg value="-dump proguard-dump.txt"/>
+    </java>
+    <delete dir="${out-classes}"/>
+    <move file="optimized" tofile="${out-classes}"/>
   </target>
 
   <!-- Convert this project's .class files into .dex files. -->
@@ -213,6 +246,19 @@ limitations under the License.
               basename="${ant.project.name}" />
   </target>
 
+  <!--
+  Getting an error like this?
+
+   [apply] UNEXPECTED TOP-LEVEL EXCEPTION:
+   [apply] com.android.dx.cf.code.SimException: local variable type
+   mismatch: attempt to set or access a value of type int using a local
+   variable of type com.google.zxing.qrcode.decoder.Version. This is
+   symptomatic of .class transformation tools that ignore local variable
+   information.
+
+  Build core/ with the 'build-no-debug' target. It's a long story.
+  -->
+
   <!-- Package the application and sign it with a debug key.
   This is the default target when building. It is used for debug. -->
   <target name="debug" depends="dex, package-resources">
@@ -226,6 +272,14 @@ limitations under the License.
       <jarfolder path="${external-libs-folder}" />
       <nativefolder path="${native-libs-folder}" />
     </apkbuilder>
+    <copy file="${out-folder}/BarcodeScanner-debug.apk" tofile="${out-folder}/temp.apk" overwrite="true"/>
+    <exec executable="${android-tools}/zipalign">
+      <arg value="-f"/>
+      <arg value="-v"/>
+      <arg value="4"/>
+      <arg value="${out-folder}/temp.apk"/>      
+      <arg value="${out-folder}/BarcodeScanner-debug.apk"/>
+    </exec>
   </target>
 
   <!-- Package the application without signing it.
@@ -242,6 +296,7 @@ limitations under the License.
       <nativefolder path="${native-libs-folder}" />
     </apkbuilder>
     <echo>All generated packages need to be signed with jarsigner before they are published.</echo>
+    <echo>Also run zipalign -f -v 4 BarcodeScanner.apk BarcodeScanner-aligned.apk after signing</echo>
   </target>
 
   <!-- Install the package on the default emulator -->