(android控制項)ImageSwitcher介紹和使用說明

1   ImageSwitcher實現的功能 和實際啟動並執行示意

ImageSwitcher類提供了圖片切換功能，通過第三方的操作，設定當前ImageSwitcher顯示的圖片，同時設定圖片變換的動畫。

 

2  如何使用ImageSwitcher控制項

 

2.1 配置分頁檔

     <ImageSwitcher

            android:id="@+id/imageSwitcher1"

            android:layout_width="fill_parent"

            android:layout_height="fill_parent"

            android:layout_alignLeft="@+id/textView1"

            android:layout_above="@id/adLayout"

            android:layout_below="@id/topText"

            android:layout_centerVertical="true" >

        </ImageSwitcher>

 

3  初始化ImageSwitcher控制項

 初始化ViewPager控制項的適配器

 

imageSwitcher1 = (ImageSwitcher) findViewById(R.id.imageSwitcher1);

        imageSwitcher1.setFactory(this);

        imageSwitcher1.setInAnimation(AnimationUtils.loadAnimation(this,

                android.R.anim.fade_in));

        imageSwitcher1.setOutAnimation(AnimationUtils.loadAnimation(this,

                android.R.anim.fade_out));

   

      imageSwitcher1.setImageResource(R.drawable.girl2);

 

4 根據介面滑動的方向切換圖片

OnTouchListener touchlistener = new OnTouchListener() { 

          

        @Override 

        public boolean onTouch(View v, MotionEvent event) { 

            if (event.getAction() == MotionEvent.ACTION_DOWN) { 

                downX = (int) event.getX();

                return true; 

            } else if (event.getAction() == MotionEvent.ACTION_UP) { 

                upX = (int) event.getX();

                if (upX - downX > 100) {

                

                    imageSwitcher1.setInAnimation(AnimationUtils.loadAnimation(ShowPhotoActivity.this,

                            android.R.anim.slide_in_left));

                    imageSwitcher1.setOutAnimation(AnimationUtils.loadAnimation(ShowPhotoActivity.this,

                            android.R.anim.slide_out_right));

                    imageSwitcher1.setImageResource(R.drawable.girl1);

                   

                } else if (downX - upX > 100)//                { 

               

                    imageSwitcher1.setInAnimation(AnimationUtils.loadAnimation(ShowPhotoActivity.this,

                            android.R.anim.slide_in_left));

                    imageSwitcher1.setOutAnimation(AnimationUtils.loadAnimation(ShowPhotoActivity.this,

                            android.R.anim.slide_out_right));

                    imageSwitcher1.setImageResource(R.drawable.girl2);

                   

                } 

                return true; 

            } 

            return false; 

        } 

    };