android之OnGestureListener实现图片的左右滑动

先来看看效果图吧



welcome_glide.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">

<ViewFlipper android:id="@+id/viewflipper"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>

</LinearLayout>

　Java代码
?
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.GestureDetector;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.view.GestureDetector.OnGestureListener;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
import android.widget.ViewFlipper;
import static android.view.KeyEvent.KEYCODE_BACK;

public class WelcomeGlide extends Activity implements OnGestureListener{
private static final String TAG = "Fuchangle.AggHelp";
private int mScreenWidth ;
private int mScreenHeight ;
private GestureDetector detector;
private ViewFlipper flipper;
private int mIndexHelpPic = 0;
private int[] mBgList = {
R.drawable.guide01,
R.drawable.guide02,
R.drawable.guide03,
R.drawable.guide04,
R.drawable.guide05
};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

setContentView(R.layout.welcome_glide);

DisplayMetrics dm =  new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
mScreenWidth = dm.widthPixels;
mScreenHeight = dm.heightPixels;
if(mScreenWidth <240){
mScreenWidth = 240;
}

if(mScreenHeight < 320){
mScreenHeight = 320;
}
flipper = (ViewFlipper)this.findViewById(R.id.viewflipper);
flipper.addView(addImageByID(mBgList[mIndexHelpPic]), new ViewGroup.LayoutParams
(ViewGroup.LayoutParams.FILL_PARENT,ViewGroup.LayoutParams.FILL_PARENT));
detector = new GestureDetector(this);
}

@Override
public boolean onDown(MotionEvent e) {
return false;
}

@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
if(e1.getX()-e2.getX() > 120){
if(++mIndexHelpPic >= mBgList.length){
mIndexHelpPic = mBgList.length - 1;
backToMainDesk();
return true;
}

this.flipper.setInAnimation(AnimationUtils.loadAnimation(this,R.anim.push_left_in));
this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_out));

flipper.addView(addImageByID(mBgList[mIndexHelpPic]),new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
this.flipper.showNext();
}else if(e1.getX() - e2.getX()< -120){
if(--mIndexHelpPic < 0){
mIndexHelpPic = 0;
return true;
}

this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_in));
this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_out));
this.flipper.showPrevious();
return true;
}
return true;
}

private void backToMainDesk(){
startActivity(new Intent(this,QQActivity.class));
finish();
}

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KEYCODE_BACK:
backToMainDesk();
return true;
default:
break;
}
return super.onKeyDown(keyCode, event);
}

private View addImageByID(int id){
ImageView img = new ImageView(this);
img.setImageResource(id);
img.setAdjustViewBounds(true);
img.setMaxWidth(mScreenWidth);
img.setMaxHeight(mScreenHeight);
img.setScaleType(ImageView.ScaleType.FIT_XY);
return img;
}

@Override
public boolean onTouchEvent(MotionEvent event) {
Log.i("Fling",  "Activity onTouchEvent!");
return this.detector.onTouchEvent(event);
}

@Override
public void onLongPress(MotionEvent e) {
}

@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,float distanceY) {
return false;
}

@Override
public void onShowPress(MotionEvent e) {
}

@Override
public boolean onSingleTapUp(MotionEvent e) {
return false;
}

　　

　下面的文件放在res/anim里面

push_left_in.xml
?
<?xml version="1.0" encoding="utf-8"?>
<set  xmlns:android="http://schemas.android.com/apk/res/android">>
<translate android:fromXDelta="100%p" android:toXDelta="0"
android:duration="500"/>
<alpha android:fromAlpha="1.0" android:toAlpha="1.0"
android:duration="500"/>
</set>

　　push_left_out.xml
?
<?xml version="1.0" encoding="utf-8"?>
<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="1.0"
android:duration="500" />

</set>

　　push_right_in.xml
?
<?xml version="1.0" encoding="utf-8"?>
<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="1.0"
android:duration="500" />
</set>

　　push_right_out.xml
?
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromXDelta="-100%p" android:toXDelta="0"
android:duration="500" />
<alpha android:fromAlpha="1.0" android:toAlpha="1.0"
android:duration="500" />
</set>

　　原文章地址：http://fuchangle.iteye.com/admin/blogs/1497208

[code]之二：

package com.sl.quwei.ui.manage;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.*;
import android.view.animation.AnimationUtils;
import android.widget.*;
import com.sl.quwei.QuweiApplication;
import com.sl.quwei.R;

import static android.view.KeyEvent.KEYCODE_BACK;

/**
* Created by IntelliJ IDEA.
* User: wulong
* Date: 12-2-22
* Time: 上午4:15
* To change this template use File | Settings | File Templates.
*/
public class AggHelp extends Activity implements GestureDetector.OnGestureListener {
private static final String TAG = "Quwei.AggHelp";
private int mScreenWidth = 240;
private int mScreenHeight = 320;
private GestureDetector detector;
private ViewFlipper flipper;
private int mIndexHelpPic = 0;
private int[] mBgList = {
R.drawable.agg_help01, //滑动需要的几张图片
R.drawable.agg_help02,
R.drawable.agg_help03,
R.drawable.agg_help04,
R.drawable.agg_help05,
R.drawable.agg_help06
};

/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.agg_bangzhuzhiyin);

CharSequence title = getTitle();
String loginName = ((QuweiApplication) getApplication()).getLoginUserName();
String titleName = AggTools.getNewTitle(title, loginName);
setTitle(titleName);
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
mScreenWidth = dm.widthPixels;
mScreenHeight = dm.heightPixels;
if (mScreenWidth < 240) {
mScreenWidth = 240;
}

if (mScreenHeight < 320) {
mScreenHeight = 320;
}

flipper = (ViewFlipper) this.findViewById(R.id.ViewFlipper01);

// flipper.addView(addButtonByText("按钮"), new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
flipper.addView(addImageByID(mBgList[mIndexHelpPic]), new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
detector = new GestureDetector(this);
}

private void backToMainDesk() {
startActivity(new Intent(this, AggManage.class));
finish();
}

public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KEYCODE_BACK:
backToMainDesk();
return true;
default:
break;
}
return super.onKeyDown(keyCode, event);
}

private View addImageByID(int id) {
ImageView img = new ImageView(this);
img.setImageResource(id);
img.setAdjustViewBounds(true);
img.setMaxWidth(mScreenWidth);
img.setMaxHeight(mScreenHeight);
img.setScaleType(ImageView.ScaleType.FIT_XY);
return img;
}

public View addButtonByText(String text) {
Button btn = new Button(this);
btn.setText(text);
return btn;
}

public View addTextByText(String text) {
TextView tv = new TextView(this);
tv.setText(text);
tv.setGravity(1);
return tv;
}

@Override
public boolean onTouchEvent(MotionEvent event) {
Log.i("Fling", "Activity onTouchEvent!");
return this.detector.onTouchEvent(event);
}

@Override
public boolean onDown(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}

/**
* 监听滑动
*/
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
// TODO Auto-generated method stub
Log.i("Fling", "Fling Happened!");
if (e1.getX() - e2.getX() > 120) {
if (++mIndexHelpPic >= mBgList.length) {
mIndexHelpPic = mBgList.length - 1;
backToMainDesk();
return true;
}

this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_in));
this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_out));
// this.flipper.addView(addTextByText("文本框"), new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
flipper.addView(addImageByID(mBgList[mIndexHelpPic]), new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
this.flipper.showNext();
return true;
} else if (e1.getX() - e2.getX() < -120) {
if (--mIndexHelpPic < 0) {
mIndexHelpPic = 0;
return true;
}

this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_in));
this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_out));
this.flipper.showPrevious();
return true;
}
return true;
}

@Override
public void onLongPress(MotionEvent e) {
// TODO Auto-generated method stub

}

@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
float distanceY) {
// TODO Auto-generated method stub
return false;
}

@Override
public void onShowPress(MotionEvent e) {
// TODO Auto-generated method stub

}

@Override
public boolean onSingleTapUp(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
}

配置文件：

agg_bangzhuzhiyin.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/agg_sub_bg">
<ViewFlipper android:id="@+id/ViewFlipper01"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
</ViewFlipper>
</LinearLayout>

push_left_in.xml 放在anim

<?xml version="1.0" encoding="utf-8"?>
<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放在anim

<?xml version="1.0" encoding="utf-8"?>
<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放在anim

<?xml version="1.0" encoding="utf-8"?>
<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_out.xml放在anim

<?xml version="1.0" encoding="utf-8"?>
<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>