diff --git a/app/src/main/java/cn/droidlover/xdroidmvp/demo/present/PBasePager.java b/app/src/main/java/cn/droidlover/xdroidmvp/demo/present/PBasePager.java
index 3be59c3..6e5892c 100644
--- a/app/src/main/java/cn/droidlover/xdroidmvp/demo/present/PBasePager.java
+++ b/app/src/main/java/cn/droidlover/xdroidmvp/demo/present/PBasePager.java
@@ -17,6 +17,9 @@ public class PBasePager extends XPresent<BasePagerFragment> {
 
 
     public void loadData(String type, final int page) {
+        if (!hasV()) {
+            return;
+        }
         Api.getGankService().getGankData(type, PAGE_SIZE, page)
                 .compose(XApi.<GankResults>getApiTransformer())
                 .compose(XApi.<GankResults>getScheduler())
@@ -24,12 +27,16 @@ public void loadData(String type, final int page) {
                 .subscribe(new ApiSubscriber<GankResults>() {
                     @Override
                     protected void onFail(NetError error) {
-                        getV().showError(error);
+                        if (hasV()) {
+                            getV().showError(error);
+                        }
                     }
 
                     @Override
                     public void onNext(GankResults gankResults) {
-                        getV().showData(page, gankResults);
+                        if (hasV()) {
+                            getV().showData(page, gankResults);
+                        }
                     }
                 });
     }
diff --git a/mvp/src/main/java/cn/droidlover/xdroidmvp/mvp/XPresent.java b/mvp/src/main/java/cn/droidlover/xdroidmvp/mvp/XPresent.java
index 8d7fea7..4835742 100644
--- a/mvp/src/main/java/cn/droidlover/xdroidmvp/mvp/XPresent.java
+++ b/mvp/src/main/java/cn/droidlover/xdroidmvp/mvp/XPresent.java
@@ -16,17 +16,14 @@ public void attachV(V view) {
 
     @Override
     public void detachV() {
-        if (v.get() != null) {
+        if (v != null) {
             v.clear();
+            v = null;
         }
-        v = null;
     }
 
     protected V getV() {
-        if (v == null || v.get() == null) {
-            throw new IllegalStateException("v can not be null");
-        }
-        return v.get();
+        return v == null ? null : v.get();
     }
 
 
diff --git a/test/src/main/java/cn/droidlover/xdroidmvp/test/mvp/multi_p/PMulti.java b/test/src/main/java/cn/droidlover/xdroidmvp/test/mvp/multi_p/PMulti.java
index 2314505..5faa6bc 100644
--- a/test/src/main/java/cn/droidlover/xdroidmvp/test/mvp/multi_p/PMulti.java
+++ b/test/src/main/java/cn/droidlover/xdroidmvp/test/mvp/multi_p/PMulti.java
@@ -9,6 +9,8 @@
 public class PMulti extends XPresent<ICommonV> {
 
     public void loadData() {
-        getV().showError(new IllegalStateException(""));
+        if (hasV()) {
+            getV().showError(new IllegalStateException(""));
+        }
     }
 }