建站
咨詢
售后
建站咨詢
新聞中心
這里有您想知道的互聯(lián)網(wǎng)營銷解決方案
android可滑動(dòng)的View
效果圖如下：
我們提供的服務(wù)有：網(wǎng)站建設(shè)、成都網(wǎng)站建設(shè)、微信公眾號(hào)開發(fā)、網(wǎng)站優(yōu)化、網(wǎng)站認(rèn)證、土默特左旗ssl等。為近千家企事業(yè)單位解決了網(wǎng)站和推廣的問題。提供周到的售前咨詢和貼心的售后服務(wù)，是有科學(xué)管理、有技術(shù)的土默特左旗網(wǎng)站制作公司
方法一（實(shí)現(xiàn)原理，主要依靠移動(dòng)動(dòng)畫
private OnTouchListener gonggaoOnTouch() {
return new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: {
break;
}
case MotionEvent.ACTION_UP: {
if (mAdsV.getTop() == mSlipRl.getTop() && moveY < 0) {
topTag();
} else if (moveY < -200) {
topTag();
} else {
nextTag();
}
break;
}
}
gestureDetector.onTouchEvent(event);
return true;
}
private void topTag() {
animBuilder.setDurationMillis(400).setFromYValue(formY)
.setToYValue(mAdsV.getTop() - mSlipRl.getTop());
bgMoveAnim = animBuilder.build();
bgMoveAnim.setAnimationListener(new AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
// TODO Auto-generated method stub
}
@Override
public void onAnimationRepeat(Animation animation) {
// TODO Auto-generated method stub
}
@Override
public void onAnimationEnd(Animation animation) {
// TODO Auto-generated method stub
mSlipRl.clearAnimation();
setLayout(mSlipRl, 0, mAdsV.getTop(), 0);
mSlipRl.invalidate();
}
});
mSlipRl.startAnimation(bgMoveAnim);
}
private void nextTag() {
animBuilder.setDurationMillis(400).setFromYValue(formY)
.setToYValue(mAdsV.getBottom() - mSlipRl.getTop());
bgMoveAnim = animBuilder.build();
bgMoveAnim.setAnimationListener(new AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
// TODO Auto-generated method stub
}
@Override
public void onAnimationRepeat(Animation animation) {
// TODO Auto-generated method stub
}
@Override
public void onAnimationEnd(Animation animation) {
// TODO Auto-generated method stub
mSlipRl.clearAnimation();
setLayout(mSlipRl, 0, mAdsV.getBottom(), 0);
mSlipRl.invalidate();
}
});
mSlipRl.startAnimation(bgMoveAnim);
}
};
}方法二，主要代碼如下：
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
lastY = event.getY();
if(null==mLocationSlip||null==mSlipDown||null==mSlipMove){
mLocationSlip = this.findViewById(R.id.location_slip);
mSlipDown = this.findViewById(R.id.down_slip);
mSlipMove = this.findViewById(R.id.move_slip);
}
top = mSlipMove.getTop();
bottom = mSlipDown.getBottom();
if (top <= lastY && lastY <= (bottom + top)) {
isMove = true;
return true;
}
case MotionEvent.ACTION_MOVE:
if (isMove) {
float newY = event.getY();
int ay = (int) ((lastY - newY) * 0.5);
lastY = newY;
mSlipMove.offsetTopAndBottom(-ay);
}
break;
case MotionEvent.ACTION_UP:
if (isMove) {
isMove = false;
top = mSlipMove.getTop();
System.out.println(top + "====" + bottom + "==="+ mLocationSlip.getBottom()*2/3);
if(!location&&top<(mLocationSlip.getBottom()*2/3)){
setLayout(mSlipMove, 0, 0, 0);
location=true;
}else if(location&&top>(mLocationSlip.getBottom()*1/3)){
setLayout(mSlipMove, 0, mLocationSlip.getBottom(), 0);
location=false;
}else if(!location){
setLayout(mSlipMove, 0, mLocationSlip.getBottom(), 0);
}else{
setLayout(mSlipMove, 0, 0, 0);
}
}
break;
}
return super.dispatchTouchEvent(event);
}主要知識(shí)點(diǎn)，就是重新設(shè)置了View的位置，android 3.0之后View可以同setTop（），setLeft()等一系列方法直接設(shè)置位置方便了開發(fā)。3.0之前位置變化設(shè)置方法：
/**
* 給view重置位置
* @param view
* @param x
* @param y
* @param b
*/
public void setLayout(View view, int x, int y, int b) {
MarginLayoutParams margin = new MarginLayoutParams(
view.getLayoutParams());
margin.setMargins(x, y, 0, b);
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(
margin);
view.setLayoutParams(layoutParams);
}文章涉及知識(shí)點(diǎn)不多，相信一看就懂。如有問題，留言
下載移步：可滑動(dòng)的View
本文標(biāo)題：android可滑動(dòng)的View
網(wǎng)頁路徑：http://fisionsoft.com.cn/article/gpdjhi.html
