android 开发之动画Activity

在android开发中,系统已经为我们设计了一些很好的动画效果,只要我们稍作修改,

就可以实现一些非常cool的效果.今天我给大家介绍的是Activity的两个动画效果,

一个是alphia变换效果,另外的一个就是放大效果.

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package jack.animation.activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class AnimationActivity extends Activity
{
    private Button btnFadeIn;
    private Button btnZoomIn;

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        btnFadeIn = (Button) findViewById(R.id.Button01);
        btnFadeIn.setOnClickListener(onFadeInClick);
        btnZoomIn = (Button) findViewById(R.id.Button02);
        btnZoomIn.setOnClickListener(onZoomInClick);
    }

    private OnClickListener onFadeInClick = new OnClickListener()
    {

        @Override
        public void onClick(View v)
        {
            startActivity(new Intent(AnimationActivity.this, AniOneActivity.class));
            overridePendingTransition(R.anim.fade, R.anim.hold);
        }
    };
    private OnClickListener onZoomInClick = new OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            startActivity(new Intent(AnimationActivity.this, AniOneActivity.class));
            overridePendingTransition(R.anim.zoom_enter, R.anim.zoom_exit);
        }
    };
}

------------------------------------------------------------------

package jack.animation.activity;



import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;



public class AniOneActivity extends Activity

{

    private Button btn;



    @Override

    protected void onCreate(Bundle savedInstanceState)

    {

        super.onCreate(savedInstanceState);

        this.setContentView(R.layout.ani_activity);

        btn = (Button) findViewById(R.id.BtnClose);

        btn.setOnClickListener(onBtnCloseClick);

    }



    private OnClickListener onBtnCloseClick = new OnClickListener()

    {

        @Override

        public void onClick(View v)

        {

            finish();

        }

    };

}

---------------------------fade.xml---------------------------------

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



<alpha xmlns:android="http://schemas.android.com/apk/res/android"

    android:interpolator="@android:anim/accelerate_interpolator"

    android:fromAlpha="0.0" android:toAlpha="1.0"

    android:duration="@android:integer/config_longAnimTime" />

--------------------------hold.xml----------------------------------

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



<translate xmlns:android="http://schemas.android.com/apk/res/android"

       android:interpolator="@android:anim/accelerate_interpolator"

       android:fromXDelta="0" android:toXDelta="0"

       android:duration="@android:integer/config_longAnimTime" />

-----------------------------zoom_enter.xml------------------------

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



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

        android:interpolator="@android:anim/decelerate_interpolator">

    <scale android:fromXScale="2.0" android:toXScale="1.0"

           android:fromYScale="2.0" android:toYScale="1.0"

           android:pivotX="50%p" android:pivotY="50%p"

           android:duration="@android:integer/config_mediumAnimTime" />

</set>

-----------------------------zoom_exit.xml----------------------------

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



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

        android:interpolator="@android:anim/decelerate_interpolator"

        android:zAdjustment="top">

    <scale android:fromXScale="1.0" android:toXScale=".5"

           android:fromYScale="1.0" android:toYScale=".5"

           android:pivotX="50%p" android:pivotY="50%p"

           android:duration="@android:integer/config_mediumAnimTime" />

    <alpha android:fromAlpha="1.0" android:toAlpha="0"

            android:duration="@android:integer/config_mediumAnimTime"/>

</set>