新增返回按钮提示

native/engine/android/app/src/com/cocos/game/AppActivity.java

@@ -1,38 +1,41 @@
 /****************************************************************************
-Copyright (c) 2015-2016 Chukong Technologies Inc.
-Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
-
-http://www.cocos2d-x.org
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-****************************************************************************/
+ Copyright (c) 2015-2016 Chukong Technologies Inc.
+ Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
+
+ http://www.cocos2d-x.org
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ ****************************************************************************/
 package com.cocos.game;
 
-import android.os.Bundle;
 import android.content.Intent;
 import android.content.res.Configuration;
+import android.os.Bundle;
+import android.widget.Toast;
 
-import com.cocos.service.SDKWrapper;
 import com.cocos.lib.CocosActivity;
+import com.cocos.service.SDKWrapper;
 
 public class AppActivity extends CocosActivity {
 
+    private long lastBackPressedTime = 0;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -89,8 +92,13 @@ public class AppActivity extends CocosActivity {
 
     @Override
     public void onBackPressed() {
-        SDKWrapper.shared().onBackPressed();
-        super.onBackPressed();
+        long timeMillis = System.currentTimeMillis();
+        if (timeMillis - lastBackPressedTime < 2000) {
+            Toast.makeText(this, "再按一次退出游戏", Toast.LENGTH_SHORT).show();
+        } else {
+            SDKWrapper.shared().onBackPressed();
+            super.onBackPressed();
+        }
     }
 
     @Override