欢迎界面的图片动态拉伸效果
package com.cins.daily.mvp.ui.activities; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.animation.AnimatorSet; import android.animation.ObjectAnimator; import android.content.Intent; import android.os.Bundle; import android.os.SystemClock; import android.support.annotation.Nullable; import android.support.v7.app.AppCompatActivity; import android.widget.ImageView; import android.widget.TextView; import com.cins.daily.R; import java.util.Random; import java.util.concurrent.TimeUnit; import butterknife.BindView; import butterknife.ButterKnife; import rx.Observable; import rx.android.schedulers.AndroidSchedulers; import rx.functions.Action1; import rx.schedulers.Schedulers; /** * Created by xiaoyu on 2017/3/13. */ public class SplashActivity extends AppCompatActivity { private static final int ANIMATION_DURATION = 2000; private static final float SCALE_END = 1.13F; private static final int[] SPLASH_ARRAY = { R.drawable.splash0, R.drawable.splash1, R.drawable.splash2, R.drawable.splash3, R.drawable.splash4, R.drawable.splash6, R.drawable.splash7, R.drawable.splash8, R.drawable.splash9, R.drawable.splash10, R.drawable.splash11, R.drawable.splash12, R.drawable.splash13, R.drawable.splash14, R.drawable.splash15, R.drawable.splash16, }; @BindView(R.id.iv_splash) ImageView mIvSplash; @BindView(R.id.splash_app_name) TextView mSplashAppName; @BindView(R.id.splash_slogan) TextView mSplashSlogan; @BindView(R.id.splash_version_name) TextView mSplashVersionName; @BindView(R.id.splash_copyright) TextView mSplashCopyright; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_splash1); ButterKnife.bind(this); Random r = new Random(SystemClock.elapsedRealtime()); mIvSplash.setImageResource(SPLASH_ARRAY[r.nextInt(SPLASH_ARRAY.length)]); animateImage(); } private void animateImage() { ObjectAnimator animatorX = ObjectAnimator.ofFloat(mIvSplash, "scaleX", 1f, SCALE_END); ObjectAnimator animatorY = ObjectAnimator.ofFloat(mIvSplash, "scaleY", 1f, SCALE_END); AnimatorSet set = new AnimatorSet(); set.setDuration(ANIMATION_DURATION).play(animatorX).with(animatorY); set.start(); set.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { NewsActivity.start(SplashActivity.this); SplashActivity.this.finish(); } }); } private void finishActivity() { Observable.timer(1000, TimeUnit.MILLISECONDS) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Action1<Long>() { @Override public void call(Long aLong) { startActivity(new Intent(SplashActivity.this, NewsActivity.class)); overridePendingTransition(0, android.R.anim.fade_out); finish(); } }); } }