带有多个动画和 Viewpager 图像的幻灯片

Question

我有 listactivity 应用程序形成很多行，一行是图像幻灯片，当你点击 显示ImageView的行打开活动，还有一个项目的选项菜单（幻灯片动画设置），当您单击它时，它会打开复选框首选项 带有多个复选框的动画屏幕，每个复选框对图像应用不同的动画 幻灯片，用户可以通过以下方式确定是否要滑动带有许多可用动画的图像 检查其复选框动画名称或取消选中所有复选框以便幻灯片活动 必须以 viewpager 模式显示图像。

android:defaultValue="true" 用于第一个动画，即淡入动画。 但是：当您打开幻灯片活动时，它会以 imagepager 模式打开图像，并且 忽略 android:defaultValue="true" 用于淡入淡出复选框，

然后转到首选项屏幕选择另一个动画然后返回幻灯片 活动，它不应用新动画，我必须按多次返回按钮 直到完成在寻呼机中滚动的所有图像然后它应用下一个动画， 有时它卡在图像寻呼机上并冻结，正常行为正在应用 下一个动画一旦按下返回按钮返回幻灯片。

当我在图像viewpager 模式中时的另一件事并滚动它， 它滚动几张图像然后回到第一张图像然后我再次滚动图像 突然它回到第一个图像，依此类推。

整个项目可以从here

下载

我们将不胜感激。

SlideShow.java

public class SlideShow extends Activity {

public int currentimageindex=0;
Timer timer;
TimerTask task;
ImageView slidingimage;

  private int[] IMAGE_IDS = {
        R.drawable.day_one_1, R.drawable.day_one_2, R.drawable.day_one_3,
        R.drawable.day_one_4, R.drawable.day_one_5, R.drawable.day_one_6,
        R.drawable.day_one_7, R.drawable.day_one_8, R.drawable.day_one_9,
        R.drawable.day_one_10, R.drawable.day_one_11, R.drawable.day_one_12,
        R.drawable.day_one_13, R.drawable.day_one_14, R.drawable.day_one_15,
        R.drawable.day_one_16,R.drawable.day_one_17,R.drawable.day_one_18, 
        R.drawable.day_one_19,R.drawable.day_one_20  
        };

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.slide);
    final Handler mHandler = new Handler();
 // Create runnable for posting
    final Runnable mUpdateResults = new Runnable() {
        public void run() {

            AnimateandSlideShow();              
        }
    };

    int delay = 1000; // delay for 1 sec.

    int period = 8000; // repeat every 4 sec.

    Timer timer = new Timer();

    timer.scheduleAtFixedRate(new TimerTask() {

    public void run() {

         mHandler.post(mUpdateResults);
    }

    }, delay, period);             

}      

private void AnimateandSlideShow() {

    SharedPreferences getPrefs = PreferenceManager
            .getDefaultSharedPreferences(getBaseContext());

    boolean animation = getPrefs.getBoolean("animation", true);             
    boolean animation_one = getPrefs.getBoolean("animation_one", false);
    boolean animation_two = getPrefs.getBoolean("animation_two", false);    
    boolean animation_three = getPrefs.getBoolean("animation_three", false);
    boolean animation_four = getPrefs.getBoolean("animation_four", false);
    boolean animation_five = getPrefs.getBoolean("animation_five", false);              

 if (animation == true) {   
    slidingimage = (ImageView)findViewById(R.id.ImageView_slide);
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]);       
    currentimageindex++;
    Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.custom_anim);               
      slidingimage.startAnimation(rotateimage);   

}else if(animation_one == true) {
    slidingimage = (ImageView)findViewById(R.id.ImageView_slide);
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]);       
    currentimageindex++;        
    Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.fade_in);        
      slidingimage.startAnimation(rotateimage);   

}else if (animation_two == true) {
    slidingimage = (ImageView)findViewById(R.id.ImageView_slide);
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]);       
    currentimageindex++;
    Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.fade_out);       
      slidingimage.startAnimation(rotateimage);  

}else if (animation_three == true) {
    slidingimage = (ImageView)findViewById(R.id.ImageView_slide);
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]);       
    currentimageindex++;
    Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.bounce);       
      slidingimage.startAnimation(rotateimage);  

}else if(animation_four == true) {
    slidingimage = (ImageView)findViewById(R.id.ImageView_slide);
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]);       
    currentimageindex++;        
    Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.fade_in_2);        
      slidingimage.startAnimation(rotateimage);   

}else if (animation_five == true) {
    slidingimage = (ImageView)findViewById(R.id.ImageView_slide);
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]);       
    currentimageindex++;
    Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.flip);       
      slidingimage.startAnimation(rotateimage);  


}else if(animation == false && animation_one == false && animation_two == false){
    Intent intent = new Intent(SlideShow.this, ImagePager.class);                                     
    startActivity(intent);

}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
    }

   @Override
public boolean onOptionsItemSelected(MenuItem item) {
    // TODO Auto-generated method stub
    switch (item.getItemId()) {

    case R.id.action_settings:
        Intent p = new Intent("com.test.test.SETTING");
        startActivity(p);
    break;
    }

return false; 
}
   }

ImagePager.java

  public class ImagePager extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.pager);

    ImagePagerAdapter adapter = new ImagePagerAdapter(this, imageArra);
    ViewPager myPager = (ViewPager) findViewById(R.id.myimagepager);
    myPager.setAdapter(adapter);
    myPager.setCurrentItem(0);
}

     private int imageArra[] = { R.drawable.day_one_1, R.drawable.day_one_2, R.drawable.day_one_3,
        R.drawable.day_one_4, R.drawable.day_one_5, R.drawable.day_one_6,
        R.drawable.day_one_7, R.drawable.day_one_8, R.drawable.day_one_9,
        R.drawable.day_one_10, R.drawable.day_one_11, R.drawable.day_one_12,
        R.drawable.day_one_13, R.drawable.day_one_14, R.drawable.day_one_15,
        R.drawable.day_one_16,R.drawable.day_one_17,R.drawable.day_one_18, 
        R.drawable.day_one_19,R.drawable.day_one_20  

    };

public class ImagePagerAdapter extends PagerAdapter {   
    Activity activity;
    int[] imageArray;

    public ImagePagerAdapter(Activity act, int[] imgArra) {
        imageArray = imgArra;
        activity = act;   
        }

    public int getCount() {
        return imageArray.length;   
        }

    public Object instantiateItem(View collection, int position) {
        LayoutInflater inflater = (LayoutInflater)collection.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View layout = inflater.inflate(R.layout.custom_pager, null);   

        ImageView im=(ImageView) layout.findViewById(R.id.pager_imageView);

        im.setImageResource(imageArray[position]);

        ((ViewPager) collection).addView(layout, 0);
           return layout;   
           }

    @Override
    public void destroyItem(View arg0, int arg1, Object arg2) {
        ((ViewPager) arg0).removeView((View) arg2);   
        }

    @Override
    public boolean isViewFromObject(View arg0, Object arg1) {
        return arg0 == ((View) arg1);   
        }

    @Override
    public Parcelable saveState() {
        return null; 
        }
    } 
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
    }

   @Override
public boolean onOptionsItemSelected(MenuItem item) {
    // TODO Auto-generated method stub
    switch (item.getItemId()) {

    case R.id.action_settings:
        Intent p = new Intent("com.test.test.SETTING");
        startActivity(p);
    break;
    }

return false;
}
   } 

Answer 1

请在尝试使用此项目时发布项目以制定适当的解决方案

首先，您已将ImageView slidingimage; 声明为实例变量，将Animation rotateimage 声明为实例变量并将其用作

 rotateimage = AnimationUtils.loadAnimation(this, R.anim.custom_anim);  

现在，将动画添加到 imageview 后，在 if 循环中调用 invalidate() 方法

slidingimage.startAnimation(rotateimage)
slidingimage.invalidate();

在你的 imagePager 类中将 ViewPager myPager 设为静态实例变量 private static ViewPager myPager 并将此代码添加到类中

public static void refreshPager(){
    if(myPager != null)
        myPager.invalidate();
}

在你的settings 类中，在onBackPressed() 事件上调用这个方法

@Override
public void onBackPressed() {
    ImagePager.refreshPager();
    super.onBackPressed();
}

编辑

您只需要这样做，将此代码添加到您的Slide.java 文件中setContentView(R.layout.main); 之后和final Handler mHandler = new Handler(); 之前

SharedPreferences getPrefs = PreferenceManager
            .getDefaultSharedPreferences(getBaseContext());
    if(getPrefs.getBoolean("Initialization", false) == false){
         SharedPreferences.Editor edit = getPrefs.edit();
         edit.putBoolean("animation_one", true);
         edit.putBoolean("Initialization", true);
         edit.commit();
    }

像这样

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    SharedPreferences getPrefs = PreferenceManager
            .getDefaultSharedPreferences(getBaseContext());
    if(getPrefs.getBoolean("Initialization", false) == false){
         SharedPreferences.Editor edit = getPrefs.edit();
         edit.putBoolean("animation_one", true);
         edit.putBoolean("Initialization", true);
         edit.commit();
    }
    final Handler mHandler = new Handler();
 // Create runnable for posting
    final Runnable mUpdateResults = new Runnable() {
        public void run() {

            AnimateandSlideShow();              
        }
    };

    int delay = 1000; // delay for 1 sec.

    int period = 8000; // repeat every 4 sec.

    Timer timer = new Timer

    // Some more code............

首选项文件不是仅创建的；）

编辑 2 在你的Slide.java 文件中声明一个像这样的布尔值

public boolean loaded ;

如果这样，请编写 else 代码

else if(animation_one == false && animation_two == false && animation_three == false 
        && animation_four == false && animation_five == false){
    Intent intent = new Intent(Slide.this, ImagePager.class);  
    if(loaded)
    startActivity(intent);
    loaded = true;
}

在Slide.java public static TimerTask 任务中创建一个静态变量；并在您的ImagePager.java 中添加此代码if(imageArra.length-1 == position)Slide.task.cancel(); 在instantiateItem() 这样的方法中

    public Object instantiateItem(View collection, int position) {
    LayoutInflater inflater = (LayoutInflater)collection.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View layout = inflater.inflate(R.layout.custom_pager, null);   

    ImageView im=(ImageView) layout.findViewById(R.id.myimage);             
    im.setImageResource(imageArray[position]);

    ((ViewPager) collection).addView(layout, 0);
    if(imageArra.length-1 == position)
        Slide.task.cancel();
       return layout;   
       }

希望这可行