dev

modules/mogo-module-main/src/main/java/com/mogo/module/main/MainActivity.java

@@ -1,6 +1,7 @@
 package com.mogo.module.main;
 
 import android.os.Bundle;
+import android.view.View;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -23,6 +24,7 @@ import com.mogo.module.main.cards.OnPageChangeListenerAdapter;
 import com.mogo.module.main.cards.OrientedViewPager;
 import com.mogo.module.main.cards.VerticalStackTransformer;
 import com.mogo.module.main.fragmentmanager.FragmentStack;
+import com.mogo.module.main.fragmentmanager.FragmentStackTransactionListener;
 import com.mogo.module.service.MarkerServiceHandler;
 import com.mogo.module.service.ServiceConst;
 import com.mogo.service.MogoServicePaths;
@@ -84,6 +86,16 @@ public class MainActivity extends MvpActivity< MainView, MainPresenter > impleme
         } );
 
         FragmentStack.getInstance().init( this, R.id.module_main_id_search_fragment );
+        FragmentStack.getInstance().setFragmentStackTransactionListener( new FragmentStackTransactionListener() {
+            @Override
+            public void onTransaction() {
+                if ( FragmentStack.getInstance().isEmpty() ) {
+                    // TODO: 2020-01-08 动画
+                } else if ( FragmentStack.getInstance().getStackSize() == 1 ) {
+
+                }
+            }
+        } );
     }
 
     @Override

modules/mogo-module-main/src/main/java/com/mogo/module/main/fragmentmanager/FragmentStack.java

@@ -87,12 +87,17 @@ public class FragmentStack {
             mFragmentTransaction.commitAllowingStateLoss();
             mCurrentFragment = null;
         } else {
-            Fragment fragment = mFragmentStack.pop();
-            if ( fragment != null ) {
-                mFragmentTransaction.show( fragment );
-                mFragmentTransaction.commitAllowingStateLoss();
+            mFragmentStack.pop();
+            if ( !mFragmentStack.isEmpty() ) {
+                Fragment fragment = mFragmentStack.pop();
+                if ( fragment != null ) {
+                    mFragmentTransaction.show( fragment );
+                    mFragmentTransaction.commitAllowingStateLoss();
+                }
+                mCurrentFragment = fragment;
+            } else {
+                mCurrentFragment = null;
             }
-            mCurrentFragment = fragment;
         }
 
         if ( getFragmentStackTransactionListener() != null ) {
@@ -104,6 +109,10 @@ public class FragmentStack {
         return mFragmentStack.isEmpty();
     }
 
+    public int getStackSize() {
+        return mFragmentStack.size();
+    }
+
     public FragmentStackTransactionListener getFragmentStackTransactionListener() {
         return mFragmentStackTransactionListener;
     }