Android实现Splash闪屏动画效果

原创

SoullessCoder

修改于 2021-02-03 17:08:22

1.9K0

修改于 2021-02-03 17:08:22

文章被收录于专栏：Code

原理：

这种效果的原理就是利用nineold提供的动画帮助类，做一个放大效果，子线程或者hanlder发消息延时两秒，然后对图片再执行放大效果，动画结束后跳转到首页

效果图：

添加依赖

implementation 'com.nineoldandroids:library:2.4.0'

启动页布局文件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/img_splash"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:adjustViewBounds="true"
        android:scaleType="centerCrop"
        android:src="@drawable/default_splash"/>

</RelativeLayout>

代码实现逻辑

public class SplashActivity extends AppCompatActivity {
    private ImageView splash;

    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_splash);

        splash = findViewById(R.id.img_splash);

        //开启一个子线程执行跳转任务
        new Thread() {
            @Override
            public void run() {
                super.run();
                try {
                    Thread.sleep(2000);
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            animateImage();
                        }
                    });
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }

    //放大图片
    public void animateImage() {

        //设置缩放动画
        ObjectAnimator animatorX = ObjectAnimator.ofFloat(splash, "scaleX", 1f,
                1.2f);
        ObjectAnimator animatorY = ObjectAnimator.ofFloat(splash, "scaleY", 1f,
                1.2f);

        AnimatorSet set = new AnimatorSet();
        set.setDuration(2000).play(animatorX).with(animatorY);
        set.start();

        //动画完成监听
        set.addListener(new AnimatorListenerAdapter() {

            @Override
            public void onAnimationEnd(Animator animation) {

                //动画完成后跳转首页
                startActivity(new Intent(SplashActivity.this, MainActivity.class));
                finish();
                overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
            }
        });
    }
}

需要源码的童鞋底部公众号回复：“闪屏动画” 即可获得哦.

到这里就结束啦.

小编整理了一份Android电子书籍，需要的童鞋关注公众号回复："e_books" 即可获取哦！