android中的简单animation(二)push up,push left,cross fade,hyperspace

animation_2.xml:

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

push_up_in.xml(100%p表示相对于父控件100%):

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

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

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="300"/>
    <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" />
</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="300"/>
    <alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="300" />
</set>

Animation2.java:

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:
            mFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.push_up_in));
            mFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.push_up_out));
            break;
        case 1:
            mFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.push_left_in));
            mFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.push_left_out));
            break;
        case 2:
            mFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
                    android.R.anim.fade_in));
            mFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,
                    android.R.anim.fade_out));
            break;
        default:
            mFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
                    R.anim.hyperspace_in));                              //hyperspace多维空间
            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;

}

显示效果如下，选择不同的显示方式，文字将会按照显示方式作不同的显示：