Android 应用程序在第二次启动时卡住

Question

我正在为 Android 开发游戏，我一直在尝试实现一个对话框来显示网络横幅广告的 WebView 。 (我正在使用 cocos2d 进行开发)。我使用静态方法 ads() 静态打开对话框。然而，自从这样做以来，我开始遇到启动问题。

首次启动时，它运行良好，但当应用关闭并重新打开时，“openscreen”场景开始但随后无法播放淡入淡出或继续进入菜单场景。

Activity (ads() 方法所在的位置)

package wingdev.defence;

import java.util.Timer;
import java.util.TimerTask;
import org.cocos2d.layers.CCScene;
import org.cocos2d.nodes.CCDirector;
import org.cocos2d.opengl.CCGLSurfaceView;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.webkit.WebView;
import android.widget.Button;

public class DefenceActivity extends Activity{
        protected CCGLSurfaceView _glSurfaceView;
        public static int highscore = 0;
        public static int mode= Activity.MODE_PRIVATE;
        public static SharedPreferences  mySharedPreferences ;
        public static String CurrentLevel = "";
        public static boolean firstlaunch=true;
        public static int screenforchoice = 0;
        public static boolean choicemade=false;
        public static boolean choice=false;
        public static DefenceActivity  context;

            @Override
                    public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            requestWindowFeature(Window.FEATURE_NO_TITLE);
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON, WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
            _glSurfaceView = new CCGLSurfaceView(this);
            setContentView(_glSurfaceView);
            CCScene scene = OpenScreen.scene();
            CCDirector.sharedDirector().runWithScene(scene);
        }

        @Override

        public void onStart()

        {
            super.onStart();
            CCDirector.sharedDirector().attachInView(_glSurfaceView);
            CCDirector.sharedDirector().setDeviceOrientation(CCDirector.kCCDeviceOrientationLandscapeLeft);

            CCDirector.sharedDirector().setAnimationInterval(1.0f / 60.0f);
            mySharedPreferences=getSharedPreferences("HighScore",mode);
            highscore= mySharedPreferences.getInt("HighScore",0);
            SharedPreferences.Editor editor= mySharedPreferences.edit();
                editor.remove("HighScore");
                editor.putInt("HighScore", highscore);
                editor.commit();
                CCScene scene = OpenScreen.scene();
            CCDirector.sharedDirector().runWithScene(scene);
            Config.context = this;
            context = this;
            }
        public void startgame()
            {
            CCDirector.sharedDirector().attachInView(_glSurfaceView);

            CCDirector.sharedDirector().setDeviceOrientation(CCDirector.kCCDeviceOrientationLandscapeLeft);;

            CCDirector.sharedDirector().setAnimationInterval(1.0f / 60.0f);

            CCScene scene = GameLayerSurvival.scene();
            CCDirector.sharedDirector().runWithScene(scene);

            }
        @Override
        public void onPause()
        {
            super.onPause();
            CCDirector.sharedDirector().pause();
        }

        @Override
        public void onResume()
        {
            super.onResume();
        }
        @Override
        public void onStop()
        {
            super.onStop();
            finish();

            CCDirector.sharedDirector().end();
        }
        static public void newhighscore()
        {if(GameLayerSurvival.score>highscore){
        highscore=GameLayerSurvival.score;
        }
        SharedPreferences.Editor editor= mySharedPreferences.edit();
        editor.remove("HighScore");
        editor.putInt("HighScore", highscore);
        editor.commit();
        }

        public static void ads(){
        context.runOnUiThread(new Runnable() {
        public void run() {
        final Dialog dialog = new Dialog(context);
        dialog.setContentView(R.layout.main);
        dialog.setTitle("Advert");
        dialog.setCancelable(true); 
        WebView mWebView = (WebView) dialog.findViewById(R.id.webbanner);
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.loadUrl("http://www.example.co.uk/");
        Button bc_btn1 = (Button) dialog.findViewById(R.id.button1);
        bc_btn1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v){
                killDialog(dialog);
            }
        });
        dialog.show();
            }
        });
        }
        public static void killDialog(Dialog dialog){
            dialog.cancel();
        }
}

Openscreen- 启动时使用的第一个场景

package wingdev.defence;

import org.cocos2d.actions.instant.CCCallFunc;
import org.cocos2d.actions.interval.CCDelayTime;
import org.cocos2d.actions.interval.CCFadeIn;
import org.cocos2d.actions.interval.CCFadeOut;
import org.cocos2d.actions.interval.CCSequence;
import org.cocos2d.layers.CCColorLayer;
import org.cocos2d.layers.CCScene;
import org.cocos2d.nodes.CCDirector;
import org.cocos2d.nodes.CCLabel;
import org.cocos2d.nodes.CCSprite;
import org.cocos2d.types.CGSize;
import org.cocos2d.types.ccColor4B;

public class OpenScreen extends CCColorLayer {

CCLabel _start; 
CCLabel _easy; 
CCLabel _normal; 
CCLabel _highscore; 
CCLabel _howto; 
CCLabel _hard; 
CCLabel _reset;
CCSprite wingdev = CCSprite.sprite("wingdevpresents.png");
CCSprite darkorange = CCSprite.sprite("PirateTea.png");
CCSprite plane = CCSprite.sprite("plane.png");
CCSprite back2 = CCSprite.sprite("black.png");
public static CCScene scene()
{ 
    //
    CCScene scene = CCScene.node();
    CCColorLayer layer = new OpenScreen(ccColor4B.ccc4(255, 255, 255, 255));
    scene.addChild(layer);

    return scene;
}
protected OpenScreen(ccColor4B color) {
super(color);
CGSize winSize = CCDirector.sharedDirector().displaySize();
this.setIsTouchEnabled(true);
back2.setPosition(winSize.width / 2.0f, winSize.height / 2.0f);
back2.setScaleX(winSize.width / back2.getContentSize().width);
back2.setScaleY(winSize.height / back2.getContentSize().height);
addChild(back2);
wingdev.setPosition(winSize.width / 2.0f, winSize.height / 2.0f);
wingdev.setScaleX(winSize.width / wingdev.getContentSize().width);
wingdev.setScaleY(winSize.height / wingdev.getContentSize().height);
addChild(wingdev);
wingdev.runAction(CCSequence.actions(CCFadeIn.action(1.0f),CCDelayTime.action(2.0f),CCFadeOut.action(1.0f), CCCallFunc.action(this,"openscreen2")));
}
public void openscreen()
{   
    CCDirector.sharedDirector().replaceScene(Menu.scene());
}
public void openscreen2(){
    CGSize winSize = CCDirector.sharedDirector().displaySize();
    removeChild(wingdev,true);
    darkorange.setPosition(winSize.width / 2.0f, winSize.height / 2.0f);
    darkorange.setScaleX(winSize.width / darkorange.getContentSize().width);
    darkorange.setScaleY(winSize.height / darkorange.getContentSize().height);
    addChild(darkorange);
        darkorange.runAction(CCSequence.actions(CCFadeIn.action(1.0f),CCDelayTime.action(2.0f),CCFadeOut.action(1.0f),CCCallFunc.action(this,"openscreen")));
}
}

如果能帮助我理解哪里出了问题，我们将不胜感激!

Answer 1

你暂停你的 CCDirector 在

 @Override
 public void onPause()
 {
  super.onPause();
  CCDirector.sharedDirector().pause();
 }

我认为你需要在 onResume() 中重新启动它

 @Override
 public void onResume()
 {
  super.onResume();
  CCDirector.sharedDirector().resume();
 }

如果应用程序未被终止，则不会调用 onStart()。

http://developer.android.com/reference/android/app/Activity.html#ActivityLifecycle