diff --git a/.travis.yml b/.travis.yml
index 9043c6a13..b09e3d075 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,7 +49,7 @@ before_install:
 
 install:
   - ./travis/scripts/fetch_private_files.sh
-  - cat ./travis/configs/gradle.properties > ./gradle.properties
+  - cat ./travis/configs/gradle.properties >> ./gradle.properties
 
 before_script:
   # Validate if patches work
@@ -75,7 +75,7 @@ deploy:
       tags: true
   # Publish to Google Play store
   - provider: script
-    script: ./gradlew publishGoogleRelease
+    script: ./gradlew twidere:publishGoogleRelease
     on:
       repo: TwidereProject/Twidere-Android
       tags: true
diff --git a/build.gradle b/build.gradle
index 400216d28..25a5c4da2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,6 +18,9 @@ allprojects {
         projectGroupId = 'org.mariotaku.twidere'
         projectVersionCode = 387
         projectVersionName = '3.6.27'
+
+        globalCompileSdkVersion = 26
+        globalBuildToolsVersion = '26.0.1'
     }
 
     repositories {
@@ -80,61 +83,9 @@ subprojects {
                     AbstractTask         : '0.9.5',
                     Dagger               : '2.11',
             ]
-        }
 
-    }
-    afterEvaluate { project ->
-
-        if (project.hasProperty('android')) {
-            android {
-                compileSdkVersion 26
-                buildToolsVersion '26.0.1'
-
-                lintOptions {
-                    abortOnError false
-                    lintConfig rootProject.file('lint.xml')
-                }
-
-                packagingOptions {
-                    exclude 'META-INF/DEPENDENCIES'
-                    exclude 'META-INF/LICENSE'
-                    exclude 'META-INF/LICENSE.txt'
-                    exclude 'META-INF/license.txt'
-                    exclude 'META-INF/NOTICE'
-                    exclude 'META-INF/NOTICE.txt'
-                    exclude 'META-INF/notice.txt'
-                    exclude 'META-INF/ASL2.0'
-                }
-
-                def file = rootProject.file('private/signing.properties')
-                if (project.plugins.hasPlugin('com.android.application') && file.exists()) {
-                    if (android.hasProperty('buildTypes')) {
-                        android.buildTypes.each { buildType ->
-                            def cfg = signingConfigs.maybeCreate(buildType.name)
-                            loadSigningConfig(cfg, file)
-                            buildType.signingConfig = cfg
-                        }
-                    }
-                    if (android.hasProperty('applicationVariants')) {
-                        android.applicationVariants.each { buildType ->
-                            def cfg = signingConfigs.maybeCreate(buildType.name)
-                            loadSigningConfig(cfg, file)
-                            buildType.signingConfig = cfg
-                        }
-                    }
-                }
-            }
         }
 
     }
 
 }
-
-def loadSigningConfig(def cfg, def file) {
-    Properties signingProp = new Properties()
-    signingProp.load(file.newInputStream())
-    cfg.setStoreFile(rootProject.file(signingProp.get('storeFile')))
-    cfg.setStorePassword((String) signingProp.get('storePassword'))
-    cfg.setKeyAlias((String) signingProp.get('keyAlias'))
-    cfg.setKeyPassword((String) signingProp.get('keyPassword'))
-}
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 6f6db09e6..6dd8a6b05 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1 +1 @@
--Dorg.gradle.jvmargs=-Xmx3.5g
\ No newline at end of file
+org.gradle.jvmargs=-Xmx3584m
\ No newline at end of file
diff --git a/travis/configs/gradle.properties b/travis/configs/gradle.properties
index 5455c0489..4f53435e8 100644
--- a/travis/configs/gradle.properties
+++ b/travis/configs/gradle.properties
@@ -15,8 +15,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-# Travis has 4g memory for container-based instances, 7.5g for VM-based instances
-org.gradle.jvmargs=-Xmx3584m
 org.gradle.parallel=false
 kotlin.incremental=false
 kotlin.compiler.execution.strategy=in-process
\ No newline at end of file
diff --git a/twidere.component.common/build.gradle b/twidere.component.common/build.gradle
index a36c8f40f..8a4efac10 100644
--- a/twidere.component.common/build.gradle
+++ b/twidere.component.common/build.gradle
@@ -44,6 +44,10 @@ buildscript {
 }
 
 android {
+
+    compileSdkVersion globalCompileSdkVersion
+    buildToolsVersion globalBuildToolsVersion
+
     defaultConfig {
         minSdkVersion 14
         targetSdkVersion 26
diff --git a/twidere.component.nyan/build.gradle b/twidere.component.nyan/build.gradle
index 7afdb4343..362b61684 100644
--- a/twidere.component.nyan/build.gradle
+++ b/twidere.component.nyan/build.gradle
@@ -22,6 +22,10 @@
 apply plugin: 'com.android.library'
 
 android {
+
+    compileSdkVersion globalCompileSdkVersion
+    buildToolsVersion globalBuildToolsVersion
+
     defaultConfig {
         minSdkVersion 14
         targetSdkVersion 26
diff --git a/twidere.wear/build.gradle b/twidere.wear/build.gradle
index 09ef9b6c5..d8a0f90b8 100644
--- a/twidere.wear/build.gradle
+++ b/twidere.wear/build.gradle
@@ -20,6 +20,10 @@
 apply plugin: 'com.android.application'
 
 android {
+
+    compileSdkVersion globalCompileSdkVersion
+    buildToolsVersion globalBuildToolsVersion
+
     defaultConfig {
         applicationId "org.mariotaku.twidere"
         minSdkVersion 20
diff --git a/twidere/build.gradle b/twidere/build.gradle
index 161264029..9a0d405f5 100644
--- a/twidere/build.gradle
+++ b/twidere/build.gradle
@@ -32,6 +32,9 @@ buildscript {
 
 android {
 
+    compileSdkVersion globalCompileSdkVersion
+    buildToolsVersion globalBuildToolsVersion
+
     defaultConfig {
         applicationId "org.mariotaku.twidere"
         minSdkVersion 14
@@ -68,13 +71,30 @@ android {
         }
     }
 
+    signingConfigs {
+        twidere {
+            def file = rootProject.file('private/signing.properties')
+            if (!file.exists()) return
+            Properties signingProp = new Properties()
+            signingProp.load(file.newInputStream())
+            storeFile = rootProject.file(signingProp.get('storeFile'))
+            storePassword = (String) signingProp.get('storePassword')
+            keyAlias = (String) signingProp.get('keyAlias')
+            keyPassword = (String) signingProp.get('keyPassword')
+        }
+    }
+
     buildTypes {
         debug {
+            signingConfig signingConfigs.twidere
+
             minifyEnabled false
             shrinkResources false
             resValue("bool", "debug", "true")
         }
         release {
+            signingConfig signingConfigs.twidere
+
             minifyEnabled false
             shrinkResources false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
@@ -92,6 +112,19 @@ android {
         unitTests.returnDefaultValues = true
     }
 
+    lintOptions {
+        abortOnError false
+        lintConfig rootProject.file('lint.xml')
+    }
+
+    packagingOptions {
+        exclude 'META-INF/DEPENDENCIES'
+        exclude 'META-INF/README'
+        exclude 'META-INF/INDEX.LIST'
+        exclude 'LICENSE​-​junit​.​txt'
+        exclude 'sdk-version.​txt'
+    }
+
 }
 
 repositories {