2003-view-Animation-push

介绍ViewFlipper

ViewFlipper

Simple ViewAnimator that will animate between two or more views that have been added to it. Only one child is shown at a time. If requested, can automatically flip between each child at a regular interval

主要介绍了四中显示方式：

1.由下到上进入消失

2.有右到左进入消失

3.渐变进入消失

4.在三维上进行动画

Animation2.java

/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.apis.view;

// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.ViewFlipper;

public class Animation2 extends Activity implements
        AdapterView.OnItemSelectedListener {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.animation_2);

        mFlipper = ((ViewFlipper) this.findViewById(R.id.flipper));
        mFlipper.startFlipping();

        Spinner s = (Spinner) findViewById(R.id.spinner);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                android.R.layout.simple_spinner_item, mStrings);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        s.setAdapter(adapter);
        s.setOnItemSelectedListener(this);
    }

    public void onItemSelected(AdapterView parent, View v, int position, long id) {
        switch (position) {

        case 0:
        	//由下到上进入消失
            mFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.push_up_in));
            mFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.push_up_out));
            break;
        case 1:
        	//有右到左进入消失
            mFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.push_left_in));
            mFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.push_left_out));
            break;
        case 2:
        	//渐变进入消失
            mFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
                    android.R.anim.fade_in));
            mFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,
                    android.R.anim.fade_out));
            break;
        default:
        	//在三维上进行动画
            mFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.hyperspace_in));
            mFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.hyperspace_out));
            break;
        }
    }

    public void onNothingSelected(AdapterView parent) {
    }

    private String[] mStrings = {
            "Push up", "Push left", "Cross fade", "Hyperspace"};

    private ViewFlipper mFlipper;

}

animation_2.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2007 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical"
        android:padding="10dip"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

    <ViewFlipper android:id="@+id/flipper"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:flipInterval="2000"
                android:layout_marginBottom="20dip" >
                <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:gravity="center_horizontal"
                        android:textSize="26sp"
                        android:text="@string/animation_2_text_1"/>
                <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:gravity="center_horizontal"
                        android:textSize="26sp"
                        android:text="@string/animation_2_text_2"/>
                <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:gravity="center_horizontal"
                        android:textSize="26sp"
                        android:text="@string/animation_2_text_3"/>
                <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:gravity="center_horizontal"
                        android:textSize="26sp"
                        android:text="@string/animation_2_text_4"/>
    </ViewFlipper>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="5dip"
        android:text="@string/animation_2_instructions"
    />

    <Spinner android:id="@+id/spinner"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
    />

</LinearLayout>

1.由下到上进入消失

push_up_in.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">
	<translate android:fromYDelta="100%p" android:toYDelta="0" android:duration="300"/>
	<alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" />
</set>

push_up_out.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">
	<translate android:fromYDelta="0" android:toYDelta="-100%p" android:duration="300"/>
	<alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="300" />

2.有右到左进入消失

push_left_in.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">
	<translate android:fromXDelta="100%p" android:toXDelta="0" android:duration="300"/>
	<alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" />
</set>

push_left_out.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">
	<translate android:fromXDelta="0" android:toXDelta="-100%p" android:duration="300"/>
	<alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="300" />
</set>

3.渐变进入消失

这是有android自带的

4.在三维上进行动画

hyperspace_in.xml

<alpha xmlns:android="http://schemas.android.com/apk/res/android" android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" android:startOffset="1200" />

hyperspace_out.xml

<set xmlns:android="http://schemas.android.com/apk/res/android" android:shareInterpolator="false">

	<scale
		android:interpolator="@android:anim/accelerate_decelerate_interpolator"
		android:fromXScale="1.0"
		android:toXScale="1.4"
		android:fromYScale="1.0"
		android:toYScale="0.6"
		android:pivotX="50%"
		android:pivotY="50%"
		android:fillAfter="false"
		android:duration="700" />

	<set
		android:interpolator="@android:anim/accelerate_interpolator"
                android:startOffset="700">

		<scale
			android:fromXScale="1.4"
			android:toXScale="0.0"
		        android:fromYScale="0.6"
	 		android:toYScale="0.0"
	 		android:pivotX="50%"
	 		android:pivotY="50%"
	 		android:duration="400" />

		<rotate
			android:fromDegrees="0"
			android:toDegrees="-45"
	 		android:toYScale="0.0"
	 		android:pivotX="50%"
	 		android:pivotY="50%"
	 		android:duration="400" />
	</set>

</set>

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