diff --git a/build.gradle b/build.gradle
index 420520ae..7684a8fb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,11 +2,12 @@
 
 buildscript {
     repositories {
+        google()
         jcenter()
         mavenLocal()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.3'
+        classpath 'com.android.tools.build:gradle:3.0.0'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.7.2'
     }
@@ -16,13 +17,14 @@ allprojects {
     repositories {
         jcenter()
         mavenLocal()
+        google()
     }
 
     ext {
-        buildToolsVersion = "24.0.3"
+        buildToolsVersion = "26.0.2"
         minSdkVersion = 14
-        targetSdkVersion = 25
-        compileSdkVersion = 25
-        supportVersion = "25.3.1"
+        targetSdkVersion = 26
+        compileSdkVersion = 26
+        supportVersion = "27.0.1"
     }
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 04e285f3..c16c596c 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Mon Dec 28 10:00:20 PST 2015
+#Tue Nov 14 17:54:35 CST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/base/BaseFragment.java b/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/base/BaseFragment.java
index eb242675..0a7fd244 100644
--- a/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/base/BaseFragment.java
+++ b/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/base/BaseFragment.java
@@ -80,19 +80,20 @@ public abstract class BaseFragment extends Fragment {
      * 隐藏键盘
      */
     protected boolean hideKeyBoard() {
-//		return mBaseActivityImpl.hideKeyBoard();
         final InputMethodManager imm = (InputMethodManager) getActivity().getApplicationContext()
                 .getSystemService(Context.INPUT_METHOD_SERVICE);
         return imm.hideSoftInputFromWindow(getActivity().findViewById(android.R.id.content)
                 .getWindowToken(), 0);
     }
 
+
+    //============================= 生命周期 ================================
+
     @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         View view = onCreateView();
         if (translucentFull()) {
-            if (mBaseView instanceof QMUIWindowInsetLayout) {
+            if (view instanceof QMUIWindowInsetLayout) {
                 view.setFitsSystemWindows(false);
                 mBaseView = view;
             } else {
@@ -105,17 +106,6 @@ public abstract class BaseFragment extends Fragment {
             mBaseView = view;
         }
         QMUIViewHelper.requestApplyInsets(getActivity().getWindow());
-    }
-
-
-    //============================= 生命周期 ================================
-
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        if (mBaseView.getParent() != null) {
-            ((ViewGroup) mBaseView.getParent()).removeView(mBaseView);
-        }
-        getBaseFragmentActivity().clearDisappearInfo(mBaseView);
         return mBaseView;
     }
 
diff --git a/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/base/BaseFragmentActivity.java b/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/base/BaseFragmentActivity.java
index 9086054d..7f25c19b 100644
--- a/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/base/BaseFragmentActivity.java
+++ b/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/base/BaseFragmentActivity.java
@@ -42,28 +42,6 @@ public abstract class BaseFragmentActivity extends AppCompatActivity {
         }
     }
 
-    @SuppressWarnings("TryWithIdenticalCatches")
-    public void clearDisappearInfo(View view) {
-        if (view != null) {
-            try {
-                Field field = ViewGroup.class.getDeclaredField("mDisappearingChildren");
-                field.setAccessible(true);
-                Object o = field.get(mFragmentContainer);
-                if(o != null && o instanceof ArrayList){
-                    ArrayList disappearingChildren = (ArrayList) o;
-                    if (disappearingChildren.contains(view)) {
-                        Log.i(TAG, "ViewGroup.mDisappearingChildren contain the targetView");
-                        disappearingChildren.remove(view);
-                    }
-                }
-            } catch (NoSuchFieldException e) {
-                e.printStackTrace();
-            } catch (IllegalAccessException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
     /**
      * 获取当前的 Fragment。
      */