android.widget.ImageView#setTranslationY ( )源码实例Demo

/**
 * 恢复
 *
 * @param img
 */
private void resumeRotation(ImageView img, boolean useAnim) {
    int w = AndroidUtils.getWindowWidth(getActivity()), h = AndroidUtils.getWindowHeight(getActivity());
    int iw = img.getMeasuredWidth(), ih = img.getMeasuredHeight();
    if (useAnim) {
        ObjectAnimator move = ObjectAnimator.ofFloat(img, "translationY", (h - ih) / 2f, 0);
        move.setDuration(400);
        ObjectAnimator scaleX = ObjectAnimator.ofFloat(img, "scaleX", (float) h / iw, 1.0f);
        ObjectAnimator scaleY = ObjectAnimator.ofFloat(img, "scaleY", (float) w / ih, 1.0f);
        ObjectAnimator rotation = ObjectAnimator.ofFloat(img, "rotation", 90f, 0f);
        AnimatorSet set = new AnimatorSet();
        set.play(scaleX).with(scaleY).with(rotation).with(move);
        set.setDuration(600);
        set.start();
    } else {
        img.setTranslationY(0f);
        img.setScaleX(1.0f);
        img.setScaleY(1.0f);
        img.setRotation(0f);
    }
}
 

/**
 * Build the fourth page Decors: a sun that slides down as the ViewPager scrolls.
 */
private void buildDecorForPage3(SparkleViewPagerLayout parent, SparkleMotion sparkleMotion) {
    ImageView sunImageView = new ImageView(parent.getContext());
    sunImageView.setImageResource(R.drawable.sun);

    int sunSize = getResources().getDimensionPixelSize(R.dimen.icon_sun_size);
    FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(sunSize, sunSize);
    sunImageView.setLayoutParams(lp);
    sunImageView.setTranslationY(-sunSize);
    sunImageView.setTranslationX(sunSize);

    Decor decor = new Decor.Builder(sunImageView).setPage(Page.pageRange(2, 4)).withLayer().build();

    TranslationAnimation translationAnimation =
            new TranslationAnimation(Page.singlePage(2), sunSize, -sunSize, -sunSize / 3f, -sunSize / 3f, true);
    sparkleMotion.animate(translationAnimation).on(decor);
}
 

private void init() {
        LayoutInflater.from(getContext()).inflate(R.layout.layout_boss_transfer, this);
        mImg = (ImageView) findViewById(R.id.img);
        mTemp = findViewById(R.id.line);
//        mPb = (ProgressBar) findViewById(R.id.progress);
        mPb = (ImageView) findViewById(R.id.progress);
        mHandleView.getLocationInWindow(mLocation);
        int sbh = Util.getStatusBarHeight(getContext());
        mImg.setTranslationY(mLocation[1] - sbh);
        mTemp.setTranslationY(mLocation[1] + mImg.getMeasuredHeight() / 2 + sbh);
        mPb.setVisibility(GONE);
        Bitmap bm = getViewImg(mHandleView);
        if (bm != null) {
            mImg.setImageBitmap(getViewImg(mHandleView));
        }
        AnimationDrawable ad = new AnimationDrawable();
        ad.addFrame(getDrawable(R.mipmap.icon_refresh_left), 200);
        ad.addFrame(getDrawable(R.mipmap.icon_refresh_center), 200);
        ad.addFrame(getDrawable(R.mipmap.icon_refresh_right), 200);
        mPb.setImageDrawable(ad);
        ad.setOneShot(false);
        ad.start();
    }
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    initValues();

    mTopImage = (ImageView) findViewById(R.id.image);
    mViewPager = (ViewPager) findViewById(R.id.view_pager);
    mNavigBar = (SlidingTabLayout) findViewById(R.id.navig_tab);
    mHeader = findViewById(R.id.header);

    if (savedInstanceState != null) {
        mTopImage.setTranslationY(savedInstanceState.getFloat(IMAGE_TRANSLATION_Y));
        mHeader.setTranslationY(savedInstanceState.getFloat(HEADER_TRANSLATION_Y));
    }

    setupAdapter();
}
 

@Override
public void transformPage(ImageView ivBg, float position, int direction) {
    ivBg.setScaleX(mScale);
    ivBg.setScaleY(mScale);
    float totalMoveWidth = ivBg.getWidth() * ((mScale - 1) / 2);
    int lastPosition = Math.round(position);
    float mFraction;
    if (lastPosition % 2 == 0) {
        mFraction = -1 * (float) Math.sin(Math.PI * position);
    } else {
        mFraction = (float) Math.sin(Math.PI * position);
    }
    ivBg.setTranslationY(totalMoveWidth * mFraction);
}
 

/**
 * Build the third page Decors: a {@link PaperPlaneView } that draws a path within the page, and
 * two clouds the slide down as the page scrolls.
 */
private void buildDecorForPage2(SparkleViewPagerLayout parent, SparkleMotion sparkleMotion) {

    // Setup PaperPlaneView.
    final PaperPlaneView view = (PaperPlaneView) LayoutInflater.from(parent.getContext())
            .inflate(R.layout.sparkle_page_2_plane, parent, false);

    Decor decor = new Decor.Builder(view)
            .setPage(Page.singlePage(1))
            .behindViewPage()
            .slideOut()
            .build();

    sparkleMotion.animate(new Animation(Page.singlePage(1)) {
        @Override
        public void onAnimate(View v, float offset, float offsetInPixel) {
            offset = Math.abs(offset);
            view.animate(offset);
        }
    }).on(decor);

    final int cloudMargin = getResources().getDimensionPixelOffset(R.dimen.icon_cloud_margin);
    final Drawable cloud = ContextCompat.getDrawable(this, R.drawable.cloud);

    // Setup small cloud.
    FrameLayout.LayoutParams lpSmallCloud =
            new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    lpSmallCloud.leftMargin = cloudMargin;
    lpSmallCloud.topMargin = cloudMargin;

    ImageView smallCloud = new ImageView(parent.getContext());
    smallCloud.setLayoutParams(lpSmallCloud);
    smallCloud.setTranslationY(-cloud.getIntrinsicHeight() - lpSmallCloud.topMargin);
    smallCloud.setImageDrawable(cloud);

    // Setup large cloud.
    FrameLayout.LayoutParams lpBigCloud =
            new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    lpBigCloud.gravity = Gravity.RIGHT;
    lpBigCloud.topMargin = (int) (cloud.getIntrinsicHeight() * 1.6f);

    ImageView bigCloud = new ImageView(parent.getContext());
    bigCloud.setLayoutParams(lpBigCloud);
    bigCloud.setTranslationY(-cloud.getIntrinsicHeight() * 1.6f - lpBigCloud.topMargin);
    bigCloud.setScaleX(1.6f);
    bigCloud.setScaleY(1.6f);
    bigCloud.setImageDrawable(cloud);

    Page page = Page.singlePage(1);
    Decor cloudDecor1 =
            new Decor.Builder(smallCloud).setPage(page).slideOut().withLayer().build();
    Decor cloudDecor2 =
            new Decor.Builder(bigCloud).setPage(page).slideOut().withLayer().build();

    TranslationAnimation translationAnimation1 =
            new TranslationAnimation(page, 0, smallCloud.getTranslationY(), 0, 0, true);
    TranslationAnimation translationAnimation2 =
            new TranslationAnimation(page, 0, bigCloud.getTranslationY(), 0, 0, true);

    sparkleMotion.animate(translationAnimation1).on(cloudDecor1);
    sparkleMotion.animate(translationAnimation2).on(cloudDecor2);
}