布局中如果没有android:id="@id/swipe_target"，可以根据顺序判断header、target、footer

gradle.properties

@@ -1,18 +1,18 @@
-# Project-wide Gradle settings.
-
-# IDE (e.g. Android Studio) users:
-# Gradle settings configured through the IDE *will override*
-# any settings specified in this file.
-
-# For more details on how to configure your build environment visit
-# http://www.gradle.org/docs/current/userguide/build_environment.html
-
-# Specifies the JVM arguments used for the daemon process.
-# The setting is particularly useful for tweaking memory settings.
-# Default value: -Xmx10248m -XX:MaxPermSize=256m
-# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
-
-# When configured, Gradle will run in incubating parallel mode.
-# This option should only be used with decoupled projects. More details, visit
-# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+# Default value: -Xmx10248m -XX:MaxPermSize=256m
+# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true

library/src/main/java/com/aspsine/swipetoloadlayout/SwipeToLoadLayout.java

@@ -327,6 +327,13 @@ public SwipeToLoadLayout(Context context, AttributeSet attrs, int defStyleAttr)
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
+        refreshViewIdentity();
+    }
+
+    /*
+    *   根据 id 或者位置判断header target footer
+    * */
+    public void refreshViewIdentity(){
         final int childNum = getChildCount();
         if (childNum == 0) {
             // no child return
@@ -335,6 +342,29 @@ protected void onFinishInflate() {
             mHeaderView = findViewById(R.id.swipe_refresh_header);
             mTargetView = findViewById(R.id.swipe_target);
             mFooterView = findViewById(R.id.swipe_load_more_footer);
+            if (mTargetView==null){
+                switch (childNum){
+                    case 1:{
+                        mTargetView=getChildAt(0);
+                        break;
+                    }
+                    case 2:{
+                        if (mFooterView!=null){
+                            mTargetView=getChildAt(0);
+                        }else {
+                            mHeaderView=getChildAt(0);
+                            mTargetView=getChildAt(1);
+                        }
+                        break;
+                    }
+                    case 3:{
+                        mHeaderView=getChildAt(0);
+                        mTargetView=getChildAt(1);
+                        mFooterView=getChildAt(2);
+                        break;
+                    }
+                }
+            }
         } else {
             // more than three children: unsupported!
             throw new IllegalStateException("Children num must equal or less than 3");