有关动画

来源：互联网发布：南京魔苹网络怎么样编辑：程序博客网时间：2024/05/16 15:56

渐变动画（模拟欢迎界面）：

public class WelcomeActivity extends Activity {    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.welcome);        //图片渐变模糊度始终        AlphaAnimation aa = new AlphaAnimation(0.1f, 1.0f);        //渐变时间        aa.setDuration(5000);        //展示图片渐变动画        this.findViewById(R.id.welcomeImage).startAnimation(aa);        //渐变过程监听        aa.setAnimationListener(new Animation.AnimationListener() {            @Override            public void onAnimationStart(Animation animation) {                System.out.println("动画开始...");            }            @Override            public void onAnimationRepeat(Animation animation) {                System.out.println("动画重复...");            }            @Override            public void onAnimationEnd(Animation animation) {                System.out.println("动画结束...");                Intent intent = new Intent(WelcomeActivity.this, MainActivity.class);                startActivity(intent);            }        });    }}

welcome.xml文件：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent">    <ImageView        android:id="@+id/welcomeImage"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:background="@mipmap/welcome"/></LinearLayout>

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