* Fix Warning

Author: lizhangqu

tinker-sample-android/app/build.gradle

@@ -47,8 +47,8 @@ def gitSha() {
 def javaVersion = JavaVersion.VERSION_1_7
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion '26.0.2'
+    compileSdkVersion 28
+    buildToolsVersion '28.0.3'
 
     compileOptions {
         sourceCompatibility javaVersion

tinker-sample-android/app/src/main/AndroidManifest.xml

@@ -2,8 +2,6 @@
 <manifest package="tinker.sample.android"
           xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <uses-sdk android:minSdkVersion="15" android:targetSdkVersion="22"/>
-
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>