* [android] update modify rewrite

android/sdk/src/main/java/com/taobao/weex/WXSDKInstance.java

@@ -1264,7 +1264,10 @@ public boolean isDestroy(){
     return isDestroy;
   }
 
-  public String getBundleUrl() {
+  /**
+   * @return If you use render () the return value may be empty
+   */
+  public @Nullable String getBundleUrl() {
     return mBundleUrl;
   }
 
@@ -1276,6 +1279,7 @@ public View getContainerView() {
     return mRenderContainer;
   }
 
+  @Deprecated
   public void setBundleUrl(String url){
     mBundleUrl = url;
     if(WXSDKManager.getInstance().getValidateProcessor()!=null) {

android/sdk/src/main/java/com/taobao/weex/adapter/DefaultUriAdapter.java

@@ -206,9 +206,9 @@
 
 import android.net.Uri;
 import android.support.annotation.NonNull;
+import android.text.TextUtils;
 
 import com.taobao.weex.WXSDKInstance;
-import com.taobao.weex.common.Constants;
 
 import java.util.List;
 
@@ -223,6 +223,10 @@ public class DefaultUriAdapter implements URIAdapter {
   @NonNull
   @Override
   public Uri rewrite(WXSDKInstance instance, String type, Uri uri) {
+    if (TextUtils.isEmpty(instance.getBundleUrl())) {
+      return uri;
+    }
+
     Uri base = Uri.parse(instance.getBundleUrl());
     Uri.Builder resultBuilder = uri.buildUpon();
 
@@ -231,8 +235,6 @@ public Uri rewrite(WXSDKInstance instance, String type, Uri uri) {
       return resultBuilder.build();
     }
     return uri;
-
-
   }
 
   private Uri.Builder buildRelativeURI(Uri.Builder resultBuilder, Uri base, Uri uri) {