[Android]add license/LICENSE (#7)

diff --git a/android/commons/build.gradle b/android/commons/build.gradle
index c9a3af0..37783ec 100644
--- a/android/commons/build.gradle
+++ b/android/commons/build.gradle
@@ -75,9 +75,10 @@
     }
 }
 
-if(file('../../LICENSE').exists()){
+
+if(file('../license/LICENSE').exists()){
     license {
-        header = file('../../LICENSE')
+        header = file('../license/LICENSE')
     }
     preBuild.dependsOn licenseFormat
 }
diff --git a/android/license/LICENSE b/android/license/LICENSE
new file mode 100755
index 0000000..90705e0
--- /dev/null
+++ b/android/license/LICENSE
@@ -0,0 +1,16 @@
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
\ No newline at end of file
diff --git a/android/playground/build.gradle b/android/playground/build.gradle
index 8062cbc..a6eac50 100755
--- a/android/playground/build.gradle
+++ b/android/playground/build.gradle
@@ -133,9 +133,9 @@
     }
 }
 
-if(file('../../LICENSE').exists()){
+if(file('../license/LICENSE').exists()){
     license {
-        header = file('../../LICENSE')
+        header = file('../license/LICENSE')
         excludes(["com/google/zxing/**/*.java","**/*.xml"])
     }
     preBuild.dependsOn licenseFormat