Android 如何解决触屏滑动事件 Android 怎么通过触屏滑动实现不同activity 之间的转换 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 Android可以用手势滑动进行切换例子 http://trinea.iteye.com/blog/1054786 滑屏进行view之间的切换比较容易实现,但滑屏切换activity估计比较困难,如果你要求滑动过程中有两个Activity窗口都能看见的话。可以用滑屏进行view之间的切换来做一个过渡效果,过渡完后再启动新的Aativity。 谁有代码分享下。我也需要啊。滑屏实现Activity的切换。 刚上传的:《Android知识系统总结》主要内容包括:1. 7个Android应用程序源代码。2. android入门到精通pdf。3. Android学习笔记。4. android开发入门与实践。5. android开发书籍1、android开发书籍2、android开发书籍3、android开发书籍4。6. android程序编写及调试新手入门.pdf。7. Android开发教程笔记完全版.pdf。8. android培训.ppt。9. Android应用开发揭秘.pdf。10. Android最佳学习路线图.pdf。11. Android最新应用开发技术及典型案例.pdf。你还等什么,而且不要分了,由于以前要的多,好多人都说我,从今天以后,只要我上传的资源,都不再超过0分. 地址:http://download.csdn.net/detail/wangxiangdong_sl/3619834 代码在此,还有谁。。package com.renrenwei.view;import android.content.Context;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.view.VelocityTracker;import android.view.View;import android.view.ViewConfiguration;import android.view.ViewGroup;import android.widget.Scroller;public class ScrollLayout extends ViewGroup { private static final String TAG = "ScrollLayout"; private Scroller mScroller; private VelocityTracker mVelocityTracker; private int mCurScreen; private int mDefaultScreen = 0; private static final int TOUCH_STATE_REST = 0; private static final int TOUCH_STATE_SCROLLING = 1; private static final int SNAP_VELOCITY = 600; private int mTouchState = TOUCH_STATE_REST; private int mTouchSlop; private float mLastMotionX; private float mLastMotionY; public ScrollLayout(Context context, AttributeSet attrs) { this(context, attrs, 0); } public ScrollLayout(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); mScroller = new Scroller(context); mCurScreen = mDefaultScreen; mTouchSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop(); } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { if (changed) { int childLeft = 0; final int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { final View childView = getChildAt(i); if (childView.getVisibility() != View.GONE) { final int childWidth = childView.getMeasuredWidth(); childView.layout(childLeft, 0, childLeft + childWidth, childView.getMeasuredHeight()); childLeft += childWidth; } } } } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { Log.e(TAG, "onMeasure"); super.onMeasure(widthMeasureSpec, heightMeasureSpec); final int width = MeasureSpec.getSize(widthMeasureSpec); final int widthMode = MeasureSpec.getMode(widthMeasureSpec); if (widthMode != MeasureSpec.EXACTLY) { throw new IllegalStateException( "ScrollLayout only canmCurScreen run at EXACTLY mode!"); } final int heightMode = MeasureSpec.getMode(heightMeasureSpec); if (heightMode != MeasureSpec.EXACTLY) { throw new IllegalStateException( "ScrollLayout only can run at EXACTLY mode!"); } final int count = getChildCount(); for (int i = 0; i < count; i++) { getChildAt(i).measure(widthMeasureSpec, heightMeasureSpec); } scrollTo(mCurScreen * width, 0); } public void snapToDestination() { final int screenWidth = getWidth(); final int destScreen = (getScrollX() + screenWidth / 2) / screenWidth; snapToScreen(destScreen); } public void snapToScreen(int whichScreen) { whichScreen = Math.max(0, Math.min(whichScreen, getChildCount() - 1)); if (getScrollX() != (whichScreen * getWidth())) { final int delta = whichScreen * getWidth() - getScrollX(); mScroller.startScroll(getScrollX(), 0, delta, 0, Math.abs(delta) * 2); mCurScreen = whichScreen; invalidate(); // Redraw the layout } } public void setToScreen(int whichScreen) { whichScreen = Math.max(0, Math.min(whichScreen, getChildCount() - 1)); mCurScreen = whichScreen; scrollTo(whichScreen * getWidth(), 0); } public int getCurScreen() { return mCurScreen; } @Override public void computeScroll() { if (mScroller.computeScrollOffset()) { scrollTo(mScroller.getCurrX(), mScroller.getCurrY()); postInvalidate(); } } @Override public boolean onTouchEvent(MotionEvent event) { if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(event); final int action = event.getAction(); final float x = event.getX(); final float y = event.getY(); switch (action) { case MotionEvent.ACTION_DOWN: Log.e(TAG, "event down!"); if (!mScroller.isFinished()) { mScroller.abortAnimation(); } mLastMotionX = x; break; case MotionEvent.ACTION_MOVE: int deltaX = (int) (mLastMotionX - x); mLastMotionX = x; scrollBy(deltaX, 0); break; case MotionEvent.ACTION_UP: Log.e(TAG, "event : up"); final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000); int velocityX = (int) velocityTracker.getXVelocity(); Log.e(TAG, "velocityX:" + velocityX); if (velocityX > SNAP_VELOCITY && mCurScreen > 0) { // Fling enough to move left Log.e(TAG, "snap left"); snapToScreen(mCurScreen - 1); } else if (velocityX < -SNAP_VELOCITY && mCurScreen < getChildCount() - 1) { // Fling enough to move right Log.e(TAG, "snap right"); snapToScreen(mCurScreen + 1); } else { snapToDestination(); } // if (velocityX > SNAP_VELOCITY && mCurScreen > 0) { // // // Fling enough to move left // // Log.e(TAG, "snap left"); // if (mCurScreen > getChildCount() - 1) { // View v1 = getChildAt(0); // View v2 = getChildAt(1); // View v3 = getChildAt(2); // // } // snapToScreen(mCurScreen - 1); // // } else if (velocityX < -SNAP_VELOCITY // // && mCurScreen < getChildCount() - 1) { // // // Fling enough to move right // // Log.e(TAG, "snap right"); // // snapToScreen(mCurScreen + 1); // // } else { // // snapToDestination(); // // } // // if (mVelocityTracker != null) { // // mVelocityTracker.recycle(); // // mVelocityTracker = null; // // } // } mTouchState = TOUCH_STATE_REST; break; case MotionEvent.ACTION_CANCEL: mTouchState = TOUCH_STATE_REST; break; } return true; } @Override public boolean onInterceptTouchEvent(MotionEvent ev) { // TODO Auto-generated method stub Log.e(TAG, "onInterceptTouchEvent-slop:" + mTouchSlop + "; action = " + ev.getAction()); final int action = ev.getAction(); if ((action == MotionEvent.ACTION_MOVE) && (mTouchState != TOUCH_STATE_REST)) { Log.e(TAG, "onInterceptTouchEvent-action:" + action); return true; } final float x = ev.getX(); final float y = ev.getY(); switch (action) { case MotionEvent.ACTION_MOVE: final int xDiff = (int) Math.abs(mLastMotionX - x); Log.e(TAG, "onInterceptTouchEvent-move: xDiff = " + xDiff + "; mLastMotionX = " + mLastMotionX); if (xDiff > mTouchSlop) { mTouchState = TOUCH_STATE_SCROLLING; } break; case MotionEvent.ACTION_DOWN: mLastMotionX = x; mLastMotionY = y; Log.e(TAG, "onInterceptTouchEvent-down: x = " + x + "; y = " + y); mTouchState = mScroller.isFinished() ? TOUCH_STATE_REST : TOUCH_STATE_SCROLLING; break; case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: Log.e(TAG, "onInterceptTouchEvent-up: mLastMotionX = " + mLastMotionX); mTouchState = TOUCH_STATE_REST; break; } return mTouchState != TOUCH_STATE_REST; }}<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:background="@color/White"> <LinearLayout android:layout_width="fill_parent" android:layout_height="300dip" android:orientation="vertical"> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_marginLeft="15dip" android:layout_marginRight="15dip" android:layout_marginBottom="20dip" android:background="@drawable/view_yuan_morelist"> <com.renrenwei.view.ScrollLayout android:id="@+id/ScrollLayoutTest" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent"> <ImageView android:layout_width="fill_parent" android:layout_height="fill_parent" android:src="@drawable/one"/> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent"> <ImageView android:layout_width="fill_parent" android:layout_height="fill_parent" android:src="@drawable/two"/> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent"> <ImageView android:layout_width="fill_parent" android:layout_height="fill_parent" android:src="@drawable/three"/> </LinearLayout></com.renrenwei.view.ScrollLayout></LinearLayout></LinearLayout> 我这个效果很好,是根据android 的桌面源码修改的,希望可以帮助到你。 这个类如何能态添加VIEW?这里有个AttributeSet不知道怎么赋值 如何调用系统中已安装的文件浏览器来打开某个目录 请问关于获取字符串 输入法键盘如何实现两个键互相关联 android里边怎么在程序安装的时候执行创建数据库的操作 关于如同网易,人人客户端的新闻保存问题 界面设置 android 传参的一个小问题 自定义actionbar的问题 多线程http超时请求 返回值处理 如何实现扫描二维码后本地网页跳转 做一个android的K歌软件 android 3.0之前的版本怎么染多个按钮同时按下
例子 http://trinea.iteye.com/blog/1054786
1. 7个Android应用程序源代码。
2. android入门到精通pdf。
3. Android学习笔记。
4. android开发入门与实践。
5. android开发书籍1、android开发书籍2、android开发书籍3、android开发书籍4。
6. android程序编写及调试新手入门.pdf。
7. Android开发教程笔记完全版.pdf。
8. android培训.ppt。
9. Android应用开发揭秘.pdf。
10. Android最佳学习路线图.pdf。
11. Android最新应用开发技术及典型案例.pdf。
你还等什么,而且不要分了,由于以前要的多,好多人都说我,从今天以后,只要我上传的资源,都不再超过0分.
地址:http://download.csdn.net/detail/wangxiangdong_sl/3619834
package com.renrenwei.view;import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.VelocityTracker;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.Scroller;public class ScrollLayout extends ViewGroup { private static final String TAG = "ScrollLayout";
private Scroller mScroller;
private VelocityTracker mVelocityTracker;
private int mCurScreen;
private int mDefaultScreen = 0;
private static final int TOUCH_STATE_REST = 0;
private static final int TOUCH_STATE_SCROLLING = 1;
private static final int SNAP_VELOCITY = 600;
private int mTouchState = TOUCH_STATE_REST;
private int mTouchSlop;
private float mLastMotionX;
private float mLastMotionY; public ScrollLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
} public ScrollLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mScroller = new Scroller(context);
mCurScreen = mDefaultScreen;
mTouchSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
} @Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
if (changed) {
int childLeft = 0;
final int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
final View childView = getChildAt(i);
if (childView.getVisibility() != View.GONE) {
final int childWidth = childView.getMeasuredWidth();
childView.layout(childLeft, 0, childLeft + childWidth,
childView.getMeasuredHeight());
childLeft += childWidth;
}
}
}
} @Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
Log.e(TAG, "onMeasure");
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
final int width = MeasureSpec.getSize(widthMeasureSpec);
final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
if (widthMode != MeasureSpec.EXACTLY) {
throw new IllegalStateException(
"ScrollLayout only canmCurScreen run at EXACTLY mode!");
}
final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
if (heightMode != MeasureSpec.EXACTLY) {
throw new IllegalStateException(
"ScrollLayout only can run at EXACTLY mode!");
}
final int count = getChildCount();
for (int i = 0; i < count; i++) {
getChildAt(i).measure(widthMeasureSpec, heightMeasureSpec);
}
scrollTo(mCurScreen * width, 0);
} public void snapToDestination() {
final int screenWidth = getWidth();
final int destScreen = (getScrollX() + screenWidth / 2) / screenWidth;
snapToScreen(destScreen);
} public void snapToScreen(int whichScreen) {
whichScreen = Math.max(0, Math.min(whichScreen, getChildCount() - 1));
if (getScrollX() != (whichScreen * getWidth())) {
final int delta = whichScreen * getWidth() - getScrollX();
mScroller.startScroll(getScrollX(), 0, delta, 0,
Math.abs(delta) * 2);
mCurScreen = whichScreen;
invalidate(); // Redraw the layout
}
} public void setToScreen(int whichScreen) {
whichScreen = Math.max(0, Math.min(whichScreen, getChildCount() - 1));
mCurScreen = whichScreen;
scrollTo(whichScreen * getWidth(), 0);
} public int getCurScreen() {
return mCurScreen;
} @Override
public void computeScroll() {
if (mScroller.computeScrollOffset()) {
scrollTo(mScroller.getCurrX(), mScroller.getCurrY());
postInvalidate();
}
} @Override
public boolean onTouchEvent(MotionEvent event) {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(event);
final int action = event.getAction();
final float x = event.getX();
final float y = event.getY();
switch (action) {
case MotionEvent.ACTION_DOWN:
Log.e(TAG, "event down!");
if (!mScroller.isFinished()) {
mScroller.abortAnimation();
}
mLastMotionX = x;
break;
case MotionEvent.ACTION_MOVE:
int deltaX = (int) (mLastMotionX - x);
mLastMotionX = x;
scrollBy(deltaX, 0);
break;
case MotionEvent.ACTION_UP:
Log.e(TAG, "event : up");
final VelocityTracker velocityTracker = mVelocityTracker;
velocityTracker.computeCurrentVelocity(1000);
int velocityX = (int) velocityTracker.getXVelocity();
Log.e(TAG, "velocityX:" + velocityX);
if (velocityX > SNAP_VELOCITY && mCurScreen > 0) {
// Fling enough to move left
Log.e(TAG, "snap left");
snapToScreen(mCurScreen - 1); } else if (velocityX < -SNAP_VELOCITY
&& mCurScreen < getChildCount() - 1) {
// Fling enough to move right
Log.e(TAG, "snap right");
snapToScreen(mCurScreen + 1);
} else {
snapToDestination();
}
// if (velocityX > SNAP_VELOCITY && mCurScreen > 0) {
//
// // Fling enough to move left
//
// Log.e(TAG, "snap left");
// if (mCurScreen > getChildCount() - 1) {
// View v1 = getChildAt(0);
// View v2 = getChildAt(1);
// View v3 = getChildAt(2);
//
// }
// snapToScreen(mCurScreen - 1);
//
// } else if (velocityX < -SNAP_VELOCITY
//
// && mCurScreen < getChildCount() - 1) {
//
// // Fling enough to move right
//
// Log.e(TAG, "snap right");
//
// snapToScreen(mCurScreen + 1);
//
// } else {
//
// snapToDestination();
//
// }
//
// if (mVelocityTracker != null) {
//
// mVelocityTracker.recycle();
//
// mVelocityTracker = null;
//
// }
// }
mTouchState = TOUCH_STATE_REST;
break;
case MotionEvent.ACTION_CANCEL:
mTouchState = TOUCH_STATE_REST;
break;
}
return true;
} @Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
// TODO Auto-generated method stub
Log.e(TAG, "onInterceptTouchEvent-slop:" + mTouchSlop + "; action = "
+ ev.getAction());
final int action = ev.getAction();
if ((action == MotionEvent.ACTION_MOVE)
&& (mTouchState != TOUCH_STATE_REST)) {
Log.e(TAG, "onInterceptTouchEvent-action:" + action);
return true;
}
final float x = ev.getX();
final float y = ev.getY();
switch (action) {
case MotionEvent.ACTION_MOVE: final int xDiff = (int) Math.abs(mLastMotionX - x);
Log.e(TAG, "onInterceptTouchEvent-move: xDiff = " + xDiff
+ "; mLastMotionX = " + mLastMotionX);
if (xDiff > mTouchSlop) { mTouchState = TOUCH_STATE_SCROLLING;
}
break;
case MotionEvent.ACTION_DOWN:
mLastMotionX = x;
mLastMotionY = y;
Log.e(TAG, "onInterceptTouchEvent-down: x = " + x + "; y = " + y);
mTouchState = mScroller.isFinished() ? TOUCH_STATE_REST
: TOUCH_STATE_SCROLLING;
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
Log.e(TAG, "onInterceptTouchEvent-up: mLastMotionX = "
+ mLastMotionX);
mTouchState = TOUCH_STATE_REST;
break;
}
return mTouchState != TOUCH_STATE_REST;
}
}
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:background="@color/White">
<LinearLayout android:layout_width="fill_parent"
android:layout_height="300dip"
android:orientation="vertical">
</LinearLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="15dip"
android:layout_marginRight="15dip"
android:layout_marginBottom="20dip"
android:background="@drawable/view_yuan_morelist">
<com.renrenwei.view.ScrollLayout android:id="@+id/ScrollLayoutTest"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:src="@drawable/one"/>
</LinearLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:src="@drawable/two"/>
</LinearLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:src="@drawable/three"/>
</LinearLayout>
</com.renrenwei.view.ScrollLayout>
</LinearLayout>
</LinearLayout>
这里有个AttributeSet不知道怎么赋值