Android實(shí)現(xiàn)平滑翻動(dòng)效果
本文實(shí)例為大家分享了Android實(shí)現(xiàn)平滑翻動(dòng)效果的具體代碼,供大家參考,具體內(nèi)容如下
效果
1.activity加implements
implements GestureDetector.OnGestureListener
2.
<ViewFlipperandroid: android:layout_width='match_parent'android:layout_height='match_parent' />
3.
private GestureDetector gestureDetector = null;private ViewFlipper marsBg;private int[] imageID = {R.drawable.bg_ast1, R.drawable.bg_main, R.drawable.bg_home};
4.oncreat中
// 生成GestureDetector對(duì)象,用于檢測(cè)手勢(shì)事件gestureDetector = new GestureDetector(this);// 添加用于切換的圖片for (int value : imageID) { // 定義一個(gè)ImageView對(duì)象 ImageView image = new ImageView(this); image.setImageResource(value); // 充滿父控件 image.setScaleType(ImageView.ScaleType.FIT_XY); // 添加到viewFlipper中 marsBg.addView(image, new ViewGroup.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));}
5.重寫繼承的方法
@Override public boolean onTouchEvent(MotionEvent event) {return this.gestureDetector.onTouchEvent(event); } @Override public boolean onFling(MotionEvent arg0, MotionEvent arg1, float arg2, float arg3) {//對(duì)手指滑動(dòng)的距離進(jìn)行了計(jì)算,如果滑動(dòng)距離大于120像素,就做切換動(dòng)作,否則不做任何切換動(dòng)作。// 從左向右滑動(dòng)if (arg0.getX() - arg1.getX() > 120) { // 添加動(dòng)畫(huà) this.marsBg.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_in)); this.marsBg.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_out)); this.marsBg.showNext();return true;}// 從右向左滑動(dòng)else if (arg0.getX() - arg1.getX() < -120) { this.marsBg.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_in)); this.marsBg.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_out)); this.marsBg.showPrevious(); return true;}return true; } @Override public boolean onDown(MotionEvent e) {return false; } @Override public void onShowPress(MotionEvent e) { } @Override public boolean onSingleTapUp(MotionEvent e) {return false; } @Override public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {return false; } @Override public void onLongPress(MotionEvent e) { }
6.anim
push_left_in.xml
<set xmlns:android='http://schemas.android.com/apk/res/android'> <translate android:fromXDelta='100%p' android:toXDelta='0'android:duration='500' /> <alpha android:fromAlpha='0.1' android:toAlpha='1.0'android:duration='500' /></set>
push_left_out.xml
<set xmlns:android='http://schemas.android.com/apk/res/android'> <translate android:fromXDelta='0' android:toXDelta='-100%p'android:duration='500' /> <alpha android:fromAlpha='1.0' android:toAlpha='0.1'android:duration='500' /></set>
push_right_in.xml
<set xmlns:android='http://schemas.android.com/apk/res/android'> <translate android:fromXDelta='-100%p' android:toXDelta='0'android:duration='500' /> <alpha android:fromAlpha='0.1' android:toAlpha='1.0'android:duration='500' /></set>
push_right_out.xml
<set xmlns:android='http://schemas.android.com/apk/res/android'> <translate android:fromXDelta='0' android:toXDelta='100%p'android:duration='500' /> <alpha android:fromAlpha='1.0' android:toAlpha='0.1'android:duration='500' /></set>
以上就是本文的全部?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持好吧啦網(wǎng)。
相關(guān)文章:
1. jsp實(shí)現(xiàn)登錄驗(yàn)證的過(guò)濾器2. Xml簡(jiǎn)介_(kāi)動(dòng)力節(jié)點(diǎn)Java學(xué)院整理3. phpstudy apache開(kāi)啟ssi使用詳解4. ASP.NET MVC使用異步Action的方法5. 爬取今日頭條Ajax請(qǐng)求6. jsp文件下載功能實(shí)現(xiàn)代碼7. ajax實(shí)現(xiàn)頁(yè)面的局部加載8. AJAX的跨域問(wèn)題解決方案9. uni-app結(jié)合.NET 7實(shí)現(xiàn)微信小程序訂閱消息推送10. 利用ajax+php實(shí)現(xiàn)商品價(jià)格計(jì)算
