android開機動畫

activity_welcome.xml

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

動畫

welcome.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <!-- 淡入效果 -->
    <!--
    <alpha
        android:fromAlpha="0.0"
        android:duration="4000"
        android:toAlpha="2.5"/>



    -->
    <!-- 淡出效果 -->
    <!--
          <alpha
        android:fromAlpha="2.5"
        android:duration="4000"
        android:toAlpha="0.0"/>


    -->
    <!-- 旋轉效果 -->
    <!--
         <rotate
        android:duration="10000"
        android:fromDegrees="0"
        android:interpolator="@android :anim/accelerate_decelerate_interpolator"
        android:pivotX="10%"
        android:pivotY="100%"
        android:toDegrees="-360" />

    -->
    <!-- 縮放效果 -->
    <!--
         <scale
        android:duration="10000"
        android:fromXScale="0.0"
        android:fromYScale="0.0"
        android:interpolator="@android :anim/decelerate_interpolator"
        android:pivotX="50%"
        android:pivotY="50%"
        android:repeatCount="1"
        android:repeatMode="reverse"
        android:startOffset="0"
        android:toXScale="2.5"
        android:toYScale="2.5" />
    -->
    <!-- 移動效果 -->
    <translate
        android:duration="10000"
        android:fromXDelta="320"
        android:fromYDelta="480"
        android:toXDelta="-320"
        android:toYDelta="-480" />

</set>

WelcomeActivity.java

package com.joseph.tourism.activity;

import com.joseph.tourism.R;

import android.app.Activity;
import android.app.DownloadManager.Request;
import android.content.Intent;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.view.Window;
import android.view.WindowManager;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.LinearLayout;

/**
 * 歡迎界面的activity
 * @author hlw
 *
 */
public class WelcomeActivity extends Activity{
    
    @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.activity_welcome);
        //加載動畫
        LinearLayout linearLayout = (LinearLayout) findViewById(R.id.welcome_picture);
        Animation animation = AnimationUtils.loadAnimation(this, R.anim.welcome);
        linearLayout.startAnimation(animation);
        new CountDownTimer(5000, 1000) {
            
            @Override
            public void onTick(long millisUntilFinished) {
                
            }
            
            @Override
            public void onFinish() {
                Intent intent = new Intent(WelcomeActivity.this, MainActivity.class);
                startActivity(intent);
                WelcomeActivity.this.finish();
            }
        }.start();
    }

}

本身剛開始學習android，之前看到手機qq或者微信都有一個開機動畫，本身想親手實踐一下，終於實現啦，本身內心有點激動。。。。加油啊。。。。。