首先定義基類BaseActivity

public abstract class BaseActivity extends AppCompatActivity {

實現類SplashActivity

public class SplashActivity extends BaseActivity {
    @BindView(R.id.iv_logo)
    ImageView mIvLogo;
    @BindView(R.id.tv_name)
    TextView mTvName;

    @Override
    public int getLayoutId
 
() {
        return R.layout.activty_splash;
    }

    @Override
    public void initPresenter() {

    }

    @Override
    public void initView() {
        ............
        });
        animatorSet.start();
    }

}

**

知識點：

**
1. Android 註解式繫結控制元件BindView

    @BindView(R.id.iv_logo)
    ImageView mIvLogo
 
;
    @BindView(R.id.tv_name)
    TextView mTvName;

2.屬性動畫 PropertyValuesHolder類（儲存動畫屬性和值，執行，降低程式碼量）

PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0.3f, 1f);
        PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 0.3f, 1f);
        PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY"
 
, 0.3f, 1f);
        ObjectAnimator objectAnimator1 = ObjectAnimator.ofPropertyValuesHolder(mTvName, alpha, scaleX, scaleY);
        ObjectAnimator objectAnimator2 = ObjectAnimator.ofPropertyValuesHolder(mIvLogo, alpha, scaleX, scaleY);

3.AnimatorSet類

AnimatorSet animatorSet = new AnimatorSet();
        animatorSet.playTogether(objectAnimator1, objectAnimator2);
        animatorSet.setInterpolator(new AccelerateInterpolator());
        animatorSet.setDuration(2000);
        animatorSet.addListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animator) {

            }

            @Override
            public void onAnimationEnd(Animator animator) {
            MainActivity.startAction(SplashActivity .this);
                finish();
            }