问题描述
我有一个ViewFlipper应该反应一扔姿态,但事实并非如此。
活动
@覆盖
公共无效的onCreate(包savedInstanceState){
...
ListView控件= this.getListView();
探测器=新GestureDetector(这一点,新FlingGestureListener(ListView中));
...
}
FlingGestureListener
公共布尔onFling(MotionEvent E1,E2 MotionEvent,浮velocityX,浮velocityY){
INT POS = source.pointToPosition(Math.round(e1.getX()),Math.round(e1.getY()));
视图V = source.getChildAt(POS - source.getFirstVisiblePosition());
的System.out.println(一扔:X =+ velocityX +Y =+ velocityY);
尝试 {
IFlingable flingable =(IFlingable)V;
如果(velocityY> -200&安培;&安培; velocityY&所述; 200){
如果(velocityX℃,)
flingable.fling(IFlingable.RIGHT_TO_LEFT);
否则如果(velocityX大于0)
flingable.fling(IFlingable.LEFT_TO_RIGHT);
}
}赶上(例外五){}
返回false;
}
查看与ViewFlipper它实现IFlingable
公共无效一扔(INT方向){
的System.out.println(翻转+方向);
开关(方向){
案例IFlingable.LEFT_TO_RIGHT:
的System.out.println(piep);
GUIHelper.setAnimationSlideLeftToRight(背景下,切换器);
switcher.showNext();
打破;
案例IFlingable.RIGHT_TO_LEFT:
的System.out.println(小狗);
GUIHelper.setAnimationSlideRightToLeft(背景下,切换器);
switcher.show previous();
打破;
}
}
布局
< ViewFlipper机器人:ID =@ + ID / viewSwitcher
机器人:layout_height =WRAP_CONTENT
机器人:layout_width =match_parent机器人:layout_weight =1
机器人:inAnimation =@动画/ slide_in_left
机器人:outAnimation =@动画/ slide_out_right>
< LinearLayout中的android:layout_height =WRAP_CONTENT
机器人:layout_width =match_parent机器人:方向=垂直>
...
< / LinearLayout中>
...
< / ViewFlipper>
登录
一扔:X = 2542.3613 Y = 95.877945
翻转:0
piep
我上ViewFlipper被执行权日志消息所以showNext(),但它不改变其在GUI视图。我失去了一些东西?我还有一个版面与ViewSwitcher而不是翻转和一件作品。
编辑:
下面是缺少类:
公共类GUIHelper {
...
公共静态无效setAnimationSlideLeftToRight(上下文的背景下,ViewAnimator转换器){
动画= AnimationUtils.loadAnimation(背景下,R.anim.slide_in_left);
动画OUT = AnimationUtils.loadAnimation(背景下,R.anim.slide_out_right);
switcher.setInAnimation(在);
switcher.setOutAnimation(出);
}
公共静态无效setAnimationSlideRightToLeft(上下文的背景下,ViewAnimator转换器){
动画= AnimationUtils.loadAnimation(背景下,R.anim.slide_in_right);
动画OUT = AnimationUtils.loadAnimation(背景下,R.anim.slide_out_left);
switcher.setInAnimation(在);
switcher.setOutAnimation(出);
}
...
}
公共接口IFlingable {
公共静态最终诠释LEFT_TO_RIGHT = 0;
公共静态最终诠释RIGHT_TO_LEFT = 1;
公共无效一扔(INT方向,布尔一扔);
}
您好,这是对的ListView运行刷卡code就像你的XML我已经把一个ListView与父母的LinearLayout在ViewFlipper
进口android.app.Activity;
进口android.os.Bundle;
进口android.view.GestureDetector;
进口android.view.GestureDetector.SimpleOnGestureListener;
进口android.view.MotionEvent;
进口android.view.View;
进口android.view.animation.Animation;
进口android.view.animation.AnimationUtils;
进口android.widget.AdapterView;
进口android.widget.ArrayAdapter;
进口android.widget.ListView;
进口android.widget.Toast;
进口android.widget.ViewFlipper;
进口android.widget.AdapterView.OnItemClickListener;
公共类MainActivity延伸活动{
私有静态最终诠释SWIPE_MIN_DISTANCE = 120;
私有静态最终诠释SWIPE_MAX_OFF_PATH = 250;
私有静态最终诠释SWIPE_THRESHOLD_VELOCITY = 200;
私人GestureDetector gestureDetector;
View.OnTouchListener gestureListener;
民营动画slideLeftIn;
民营动画slideLeftOut;
民营动画slideRightIn;
民营动画slideRightOut;
私人ViewFlipper viewFlipper;
私人的ListView LV;
私有String []市= {多尔,博帕尔,Khargone,乌贾因,
纳西克,普那,德里,孟买,诺依,海得拉巴,
班加罗尔,阿杰梅尔,阿,斋浦尔,那格浦尔,};
私有String []国家= {印度,不丹,科威特,USA,};
@覆盖
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.main_layout);
LV =(ListView控件)findViewById(R.id.List01);
ListView控件LV2 =(ListView控件)findViewById(R.id.List02);
viewFlipper =(ViewFlipper)findViewById(R.id.flipper);
slideLeftIn = AnimationUtils.loadAnimation(这一点,R.anim.slide_left_in);
slideLeftOut = AnimationUtils
.loadAnimation(这一点,R.anim.slide_left_out);
slideRightIn = AnimationUtils
.loadAnimation(这一点,R.anim.slide_right_in);
slideRightOut = AnimationUtils.loadAnimation(这一点,
R.anim.slide_right_out);
gestureDetector =新GestureDetector(新MyGestureDetector());
gestureListener =新View.OnTouchListener(){
公共布尔onTouch(视图V,MotionEvent事件){
如果(gestureDetector.onTouchEvent(事件)){
返回true;
}
返回false;
}
};
lv.setAdapter(新ArrayAdapter<字符串>(这一点,
android.R.layout.simple_list_item_1,市));
lv2.setAdapter(新ArrayAdapter<字符串>(这一点,
android.R.layout.simple_list_item_1,国家));
lv.setOnItemClickListener(新OnItemClickListener(){
公共无效onItemClick(适配器视图为arg0,视图中查看,INT位置,
长ID){
//用户点击一个列表项,使其选定
Toast.makeText(getBaseContext(),项目已点击,
Toast.LENGTH_SHORT).show();
// selectedAdapter.setSelectedPosition(位置);
}
});
lv2.setOnItemClickListener(新OnItemClickListener(){
公共无效onItemClick(适配器视图为arg0,视图中查看,INT位置,
长ID){
//用户点击一个列表项,使其选定
Toast.makeText(getBaseContext(),项目列表2点击的,
Toast.LENGTH_SHORT).show();
// selectedAdapter.setSelectedPosition(位置);
}
});
}
类MyGestureDetector扩展SimpleOnGestureListener {
@覆盖
公共布尔onFling(MotionEvent E1,E2 MotionEvent,浮velocityX,
浮动velocityY){
尝试 {
如果(Math.abs(e1.getY() - e2.getY())> SWIPE_MAX_OFF_PATH)
返回false;
//从右向左轻扫
如果(e1.getX() - e2.getX()> SWIPE_MIN_DISTANCE
&功放;&安培; Math.abs(velocityX)> SWIPE_THRESHOLD_VELOCITY){
viewFlipper.setInAnimation(slideLeftIn);
viewFlipper.setOutAnimation(slideLeftOut);
viewFlipper.showNext();
}否则,如果(e2.getX() - e1.getX()> SWIPE_MIN_DISTANCE
&功放;&安培; Math.abs(velocityX)> SWIPE_THRESHOLD_VELOCITY){
viewFlipper.setInAnimation(slideRightIn);
viewFlipper.setOutAnimation(slideRightOut);
viewFlipper.show previous();
}
}赶上(例外五){
//什么
}
返回false;
}
}
@覆盖
公共布尔的onTouchEvent(MotionEvent事件){
如果(gestureDetector.onTouchEvent(事件))
返回true;
其他
返回false;
}
}
包括布局(main_layout)用于.....
< XML版本=1.0编码=UTF-8&GT?;
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:ID =@ + ID / linearLayout1
机器人:layout_width =FILL_PARENT
机器人:layout_height =FILL_PARENT
机器人:方向=垂直>
<的LinearLayout
机器人:layout_width =FILL_PARENT
机器人:layout_height =WRAP_CONTENT>
<按钮
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:文本=不要点击只是轻扫上剩余的区域/>
< / LinearLayout中>
< ViewFlipper
的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:ID =@ + ID /脚蹼
机器人:layout_width =FILL_PARENT
机器人:layout_height =FILL_PARENT>
<的LinearLayout
机器人:ID =@ + ID / ViewFlipper01
机器人:layout_width =FILL_PARENT
机器人:layout_height =FILL_PARENT
机器人:方向=垂直>
<的ListView
机器人:ID =@ + ID / List01
机器人:layout_width =FILL_PARENT
机器人:layout_height =WRAP_CONTENT>
< / ListView控件>
< / LinearLayout中>
I have a ViewFlipper which should react to a fling gesture, but it does not.
Activity
@Override
public void onCreate(Bundle savedInstanceState) {
...
listView = this.getListView();
detector = new GestureDetector(this, new FlingGestureListener(listView));
...
}
FlingGestureListener
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
int pos = source.pointToPosition(Math.round(e1.getX()), Math.round(e1.getY()));
View v = source.getChildAt(pos - source.getFirstVisiblePosition());
System.out.println("fling: x=" + velocityX + " y=" + velocityY);
try {
IFlingable flingable = (IFlingable) v;
if(velocityY > -200 && velocityY < 200) {
if(velocityX < 0)
flingable.fling(IFlingable.RIGHT_TO_LEFT);
else if(velocityX > 0)
flingable.fling(IFlingable.LEFT_TO_RIGHT);
}
} catch(Exception e) {}
return false;
}
View with ViewFlipper which implements IFlingable
public void fling(int direction) {
System.out.println("flip: " + direction);
switch(direction) {
case IFlingable.LEFT_TO_RIGHT:
System.out.println("piep");
GUIHelper.setAnimationSlideLeftToRight(context, switcher);
switcher.showNext();
break;
case IFlingable.RIGHT_TO_LEFT:
System.out.println("pup");
GUIHelper.setAnimationSlideRightToLeft(context, switcher);
switcher.showPrevious();
break;
}
}
Layout
<ViewFlipper android:id="@+id/viewSwitcher"
android:layout_height="wrap_content"
android:layout_width="match_parent" android:layout_weight="1"
android:inAnimation="@anim/slide_in_left"
android:outAnimation="@anim/slide_out_right">
<LinearLayout android:layout_height="wrap_content"
android:layout_width="match_parent" android:orientation="vertical">
...
</LinearLayout>
...
</ViewFlipper>
Log
fling: x=2542.3613 y=95.877945
flip: 0
piep
I get the right log messages so the showNext() on the ViewFlipper gets executed but it does not change its view on the gui. Am I missing something? I have another layout with a ViewSwitcher instead of the Flipper and that one works.
EDIT:
Here are the missing classes:
public class GUIHelper {
...
public static void setAnimationSlideLeftToRight(Context context, ViewAnimator switcher) {
Animation in = AnimationUtils.loadAnimation(context, R.anim.slide_in_left);
Animation out = AnimationUtils.loadAnimation(context, R.anim.slide_out_right);
switcher.setInAnimation(in);
switcher.setOutAnimation(out);
}
public static void setAnimationSlideRightToLeft(Context context, ViewAnimator switcher) {
Animation in = AnimationUtils.loadAnimation(context, R.anim.slide_in_right);
Animation out = AnimationUtils.loadAnimation(context, R.anim.slide_out_left);
switcher.setInAnimation(in);
switcher.setOutAnimation(out);
}
...
}
public interface IFlingable {
public static final int LEFT_TO_RIGHT = 0;
public static final int RIGHT_TO_LEFT = 1;
public void fling(int direction, boolean fling);
}
Hello this is the running swipe code on listView just as your xml I have placed a ListView with parent LinearLayout in ViewFlipper
import android.app.Activity;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.ViewFlipper;
import android.widget.AdapterView.OnItemClickListener;
public class MainActivity extends Activity {
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_MAX_OFF_PATH = 250;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
private GestureDetector gestureDetector;
View.OnTouchListener gestureListener;
private Animation slideLeftIn;
private Animation slideLeftOut;
private Animation slideRightIn;
private Animation slideRightOut;
private ViewFlipper viewFlipper;
private ListView lv;
private String[] city = { "Indore", "Bhopal", "Khargone", "Ujjain",
"Nasik", "Pune", "Delhi", "Mumbai", "Noida", "Hyderabad",
"Banglore", "Ajmer", "Goa", "Jaipur", "Nagpur", "" };
private String[] country = { "India", "Bhutan", "Kuwait", "USA", };
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_layout);
lv = (ListView) findViewById(R.id.List01);
ListView lv2 = (ListView) findViewById(R.id.List02);
viewFlipper = (ViewFlipper) findViewById(R.id.flipper);
slideLeftIn = AnimationUtils.loadAnimation(this, R.anim.slide_left_in);
slideLeftOut = AnimationUtils
.loadAnimation(this, R.anim.slide_left_out);
slideRightIn = AnimationUtils
.loadAnimation(this, R.anim.slide_right_in);
slideRightOut = AnimationUtils.loadAnimation(this,
R.anim.slide_right_out);
gestureDetector = new GestureDetector(new MyGestureDetector());
gestureListener = new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
if (gestureDetector.onTouchEvent(event)) {
return true;
}
return false;
}
};
lv.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, city));
lv2.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, country));
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView arg0, View view, int position,
long id) {
// user clicked a list item, make it "selected"
Toast.makeText(getBaseContext(), "Item Clicked",
Toast.LENGTH_SHORT).show();
// selectedAdapter.setSelectedPosition(position);
}
});
lv2.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView arg0, View view, int position,
long id) {
// user clicked a list item, make it "selected"
Toast.makeText(getBaseContext(), "Item List2 Clicked",
Toast.LENGTH_SHORT).show();
// selectedAdapter.setSelectedPosition(position);
}
});
}
class MyGestureDetector extends SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
try {
if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH)
return false;
// right to left swipe
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
viewFlipper.setInAnimation(slideLeftIn);
viewFlipper.setOutAnimation(slideLeftOut);
viewFlipper.showNext();
} else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
viewFlipper.setInAnimation(slideRightIn);
viewFlipper.setOutAnimation(slideRightOut);
viewFlipper.showPrevious();
}
} catch (Exception e) {
// nothing
}
return false;
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (gestureDetector.onTouchEvent(event))
return true;
else
return false;
}
}
Included the layout(main_layout) that is used.....
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Do not Click Just swipe on remaining area" />
</LinearLayout>
<ViewFlipper
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/flipper"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:id="@+id/ViewFlipper01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/List01"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
这篇关于Android的ViewFlipper不翻转的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!