ViewFlipper结合手势OnGestureListener制作的滑动切换效果
文章分类:移动开发
先要了解ViewFlipper,详细见：
http://gundumw100.iteye.com/admin/blogs/896840
OnGestureListener和OnDoubleTapListener接口定义：
- public interface OnGestureListener {
-
- boolean onDown(MotionEvent e);
-
- void onShowPress(MotionEvent e);
-
- boolean onSingleTapUp(MotionEvent e);
-
- boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY);
-
- void onLongPress(MotionEvent e);
-
- boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY);
- }
-
- public interface OnDoubleTapListener {
-
- boolean onSingleTapConfirmed(MotionEvent e);
-
- boolean onDoubleTap(MotionEvent e);
-
- boolean onDoubleTapEvent(MotionEvent e);
- }
实例：
- import android.app.Activity;
- import android.os.Bundle;
- import android.view.GestureDetector;
- import android.view.MotionEvent;
- import android.view.View;
- import android.widget.Button;
- import android.widget.ViewFlipper;
-
- public class FlingSlideActivity extends Activity implements GestureDetector.OnGestureListener,GestureDetector.OnDoubleTapListener{
- private ViewFlipper mViewFlipper;
- private GestureDetector mGestureDetector;
-
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- mViewFlipper = (ViewFlipper) findViewById(R.id.flipper);
- Button button1 = (Button) findViewById(R.id.Button1);
- button1.setOnClickListener(new View.OnClickListener() {
- public void onClick(View view) {
- mViewFlipper.showNext();
- }
- });
- Button button2 = (Button) findViewById(R.id.Button2);
- button2.setOnClickListener(new View.OnClickListener() {
- public void onClick(View view) {
- mViewFlipper.showNext();
- }
- });
- Button button3 = (Button) findViewById(R.id.Button3);
- button3.setOnClickListener(new View.OnClickListener() {
- public void onClick(View view) {
- mViewFlipper.showNext();
- }
- });
- mGestureDetector = new GestureDetector(this);
- }
-
- @Override
- public boolean onTouchEvent(MotionEvent event) {
- return mGestureDetector.onTouchEvent(event);
- }
-
- public boolean onDown(MotionEvent e) {
-
- return false;
- }
- public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
- float velocityY) {
-
- if(e1.getX() > e2.getX()) {
- mViewFlipper.setInAnimation(getApplicationContext(), R.anim.push_left_in);
- mViewFlipper.setOutAnimation(getApplicationContext(), R.anim.push_left_out);
- mViewFlipper.showNext();
- }else if(e1.getX() < e2.getX()) {
- mViewFlipper.setInAnimation(getApplicationContext(), R.anim.push_right_in);
- mViewFlipper.setOutAnimation(getApplicationContext(), R.anim.push_right_out);
- mViewFlipper.showPrevious();
- }else {
- return false;
- }
- return true;
- }
-
- public void onLongPress(MotionEvent e) {
-
-
- }
-
- public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
- float distanceY) {
-
- return false;
- }
-
- public void onShowPress(MotionEvent e) {
-
-
- }
-
- public boolean onSingleTapUp(MotionEvent e) {
-
- return false;
- }
-
- public boolean onDoubleTap(MotionEvent e) {
-
- mViewFlipper.startFlipping();
- return true;
- }
- public boolean onDoubleTapEvent(MotionEvent e) {
-
- return false;
- }
- public boolean onSingleTapConfirmed(MotionEvent e) {
-
- if(mViewFlipper.isFlipping()){
- mViewFlipper.stopFlipping();
- }
- return false;
- }
- font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style:
