Android_ViewFlipper_手势滑动

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:background="@drawable/white"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/myTextView0"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="@drawable/black"
android:gravity="center_vertical|center_horizontal"
android:text="@string/hello"/>

<ViewFlipper
android:id="@+id/myViewFlipper1"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/white">
<TextView
android:id="@+id/myTextView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="@drawable/blue"
android:text="@string/str_view_flipper1"/>
<ImageView
android:id="@+id/myImageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/visa_512"
/>

</LinearLayout>

<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/white">
<TextView
android:id="@+id/myTextView2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="@drawable/blue"
android:text="@string/str_view_flipper2"/>
<ImageView
android:id="@+id/myImageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/mastercard_512"
/>

</LinearLayout>
</ViewFlipper>
</LinearLayout>

package irdc.ex03_27;

import android.app.Activity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ViewFlipper;

public class EX03_27 extends Activity
{
public static String TAG = "HIPPO_DEBUG";
private ViewFlipper mViewFlipper01;
private float oldTouchValue;
//private ImageView mImageView01;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
getWindow().setFlags
(
WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN
);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
mViewFlipper01 = (ViewFlipper)findViewById(R.id.myViewFlipper1);

/*扩展学习
mImageView01 = (ImageView)findViewById(R.id.myImageView1);
// 建立动画TranslateAnimation
Animation anim = new TranslateAnimation( 10, 200, 10, 400 );
// 动画开始到结束的执行时间 (2000 = 2 秒)
anim.setDuration(2000);
// 设定动画重复次数，-1表示不断重复
anim.setRepeatCount(-1);
// 设定ImageView动画效果
mImageView01.setAnimation(anim);
// 动画开始
anim.startNow();
*/
}

@Override
public boolean onTouchEvent(MotionEvent event)
{
// TODO Auto-generated method stub
switch (event.getAction())
{
case MotionEvent.ACTION_DOWN:
oldTouchValue = event.getX();
break;
case MotionEvent.ACTION_UP:
float currentX = event.getX();
if (oldTouchValue < currentX)//手指向右滑动
{
mViewFlipper01.setInAnimation(AnimationHelper.inFromLeftAnimation());
mViewFlipper01.setOutAnimation(AnimationHelper.outToRightAnimation());
mViewFlipper01.showNext();
}
if (oldTouchValue > currentX)//手指向左滑动
{
mViewFlipper01.setInAnimation(AnimationHelper.inFromRightAnimation());
mViewFlipper01.setOutAnimation(AnimationHelper.outToLeftAnimation());
mViewFlipper01.showPrevious();
}
break;
case MotionEvent.ACTION_MOVE:
// TODO: Some code to make the ViewFlipper
// act like the home screen.
break;

}
return super.onTouchEvent(event);
}
}

package irdc.ex03_27;

import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;

public class AnimationHelper
{
public static Animation inFromRightAnimation()//由右向左滑动的Set In事件
{
Animation inFromRight = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, +1.0f, Animation.RELATIVE_TO_PARENT,
0.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT,
0.0f);
inFromRight.setDuration(350);
inFromRight.setInterpolator(new AccelerateInterpolator());
return inFromRight;
}

public static Animation outToLeftAnimation()//由右向左滑动的Set Out事件
{
Animation outtoLeft = new TranslateAnimation(Animation.RELATIVE_TO_PARENT,
0.0f, Animation.RELATIVE_TO_PARENT, -1.0f,
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f);
outtoLeft.setDuration(350);
outtoLeft.setInterpolator(new AccelerateInterpolator());
return outtoLeft;
}

// for the next movement
public static Animation inFromLeftAnimation()//由左向右滑动的Set In事件
{
Animation inFromLeft = new TranslateAnimation(Animation.RELATIVE_TO_PARENT,
-1.0f, Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f);
inFromLeft.setDuration(350);
inFromLeft.setInterpolator(new AccelerateInterpolator());
return inFromLeft;
}

public static Animation outToRightAnimation()//由左向右滑动的Set Out事件
{
Animation outtoRight = new TranslateAnimation(Animation.RELATIVE_TO_PARENT,
0.0f, Animation.RELATIVE_TO_PARENT, +1.0f,
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f);
outtoRight.setDuration(350);
outtoRight.setInterpolator(new AccelerateInterpolator());
return outtoRight;
}
}