一.禁止加载PreviewWindow

二.自定义PreviewWindow

三.自定义Preview Window增强版（动画）

这里我们要明确一点的是：Preview Window只是静态图，它本身是不展示动画的，我们这里的动画是在进入欢迎页之后才展示的。

1.设置mainActivity 的 theme 属性

2.在\res\values\style下 添加 Theme.Center

3.@drawable/splash_ico 内容

qq为图片

4.mainActivity.xml

5.mainActivity.class

public class SplashActivity extends AppCompatActivity{

    private ImageView img;

    private ImageView ImgMark;

    ViewPropertyAnimation.Animator animator=new ViewPropertyAnimation.Animator(){

        @Override

        public void animate(View view) {

            view.setAlpha(0f);

            ObjectAnimator objAnimator=ObjectAnimator.ofFloat(view,"alpha",0f,1f);

            objAnimator.setDuration(2000);

            objAnimator.start();

        }

    };

    @Override

    protected void onCreate(@Nullable Bundle savedInstanceState) {

        getWindow().setBackgroundDrawable(null);

        initStatus();

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_splash_layout);

        img= (ImageView) findViewById(R.id.img_id);

        ImgMark= (ImageView) findViewById(R.id.icon_mark);

        ImgMark.post(new Runnable() {

            @Override

            public void run() {

                Glide.with(SplashActivity.this).load(R.drawable.benbenla)

                        .animate(animator).into(img);

                startAnimat();

            }

        });

    }

    @Override

    public void onWindowFocusChanged(boolean hasFocus) {

        super.onWindowFocusChanged(hasFocus);

    }

    private void initStatus(){

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

            View decoderView = getWindow().getDecorView();

            int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;

            decoderView.setSystemUiVisibility(option);

            getWindow().setStatusBarColor(Color.TRANSPARENT);

        } else {

            WindowManager.LayoutParams localLayoutParams = getWindow().getAttributes();

            localLayoutParams.flags = (WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS | localLayoutParams.flags);

            //or ?

//            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);

        }

    }

    private void startAnimat(){

        int imgHeight=ImgMark.getHeight()/5;

        int height=getWindowManager().getDefaultDisplay().getHeight();

        int curY=height/2 + imgHeight/2;

        int dy=(height-imgHeight)/2;

        AnimatorSet set=new AnimatorSet();

        ObjectAnimator animatorTranslate=ObjectAnimator.ofFloat(ImgMark,"translationY",0,dy);

        ObjectAnimator animatorScaleX=ObjectAnimator.ofFloat(ImgMark,"ScaleX",1f,0.2f);

        ObjectAnimator animatorScaleY=ObjectAnimator.ofFloat(ImgMark,"ScaleY",1f,0.2f);

        ObjectAnimator animatorAlpha=ObjectAnimator.ofFloat(ImgMark,"alpha",1f,0.5f);

        set.play(animatorTranslate)

                .with(animatorScaleX).with(animatorScaleY).with(animatorAlpha);

        set.setDuration(1200);

        set.setInterpolator(new AccelerateInterpolator());

        set.start();

        set.addListener(new Animator.AnimatorListener() {

            @Override

            public void onAnimationStart(Animator animation) {

            }

            @Override

            public void onAnimationEnd(Animator animation) {

                ImgMark.postDelayed(new Runnable() {

                    @Override

                    public void run() {

                        startActivity(new Intent(SplashActivity.this,MainActivity.class));

                        SplashActivity.this.finish();

                    }

                },3000);

            }

            @Override

            public void onAnimationCancel(Animator animation) {

            }

            @Override

            public void onAnimationRepeat(Animator animation) {

            }

        });

    }

}

原文链接