18
Tôi muốn triển khai hoạt ảnh như hình bên dưới. 
Hoạt ảnh song song trong Imageview
Tôi đã sử dụng ThreePhaseBottomLibrary và theo hoạt ảnh kinh nghiệm của tôi sẽ song song như trên hình ảnh khi tôi cuộn lên!
Dưới đây là lớp Phân đoạn của tôi. Nó hoạt động tốt, ngoại trừ hình ảnh này hoạt hình song song theo màn hình:
Myfragment.java
public class MyFragment extends BottomSheetFragment {
private BottomSheetLayout mBottomSheetLayout;
private ImageView mBottomSheetBackgroundImageView;
private int mBottomSheetHeight;
private ImageView movingIconImageView;
private AppBarLayout mAppBarLayout;
private int mMStartMarginBottom;
private int mMStartMarginLeft;
private Toolbar mToolbar;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.fragment_my, container, false);
mBottomSheetHeight = getResources().getDimensionPixelSize(R.dimen.header_height);
mAppBarLayout = (AppBarLayout) view.findViewById(R.id.appbar);
view.setMinimumHeight(getResources().getDisplayMetrics().heightPixels);
CollapsingToolbarLayout collapsingToolbar = (CollapsingToolbarLayout) view.findViewById(R.id.collapsing_toolbar);
//collapsingToolbar.setTitle("Title");
collapsingToolbar.setTitleEnabled(false);
mToolbar = (Toolbar) view.findViewById(R.id.toolbar);
//final AppCompatActivity activity = (AppCompatActivity) getActivity();
//activity.setSupportActionBar(toolbar);
//final ActionBar actionBar = activity.getSupportActionBar();
//actionBar.setDisplayHomeAsUpEnabled(true);
//actionBar.setTitle(null);
mToolbar.setNavigationIcon(R.drawable.abc_ic_ab_back_mtrl_am_alpha);
mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mBottomSheetLayout.dismissSheet();
}
});
mToolbar.setAlpha(0);
mBottomSheetBackgroundImageView = (ImageView) view.findViewById(R.id.backdrop);
mBottomSheetBackgroundImageView.setAlpha(0.0f);
movingIconImageView = (ImageView) view.findViewById(R.id.movingIconImageView);
Glide.with(this).load(R.drawable.cheese_1).centerCrop().into(mBottomSheetBackgroundImageView);
if (mBottomSheetLayout != null)
mBottomSheetLayout.setAppBarLayout(mAppBarLayout);
final int actionBarHeight = getActionBarHeight(getActivity());
mMStartMarginBottom = getResources().getDimensionPixelSize(R.dimen.header_view_start_margin_bottom);
mMStartMarginLeft = getResources().getDimensionPixelSize(R.dimen.header_view_start_margin_left);
movingIconImageView.setPivotX(0);
final float actionBarIconPadding = getResources().getDimensionPixelSize(R.dimen.action_bar_icon_padding);
mAppBarLayout.addOnOffsetChangedListener(new OnOffsetChangedListener() {
float startY = 0;
float scaleDiff = 0;
@Override
public void onOffsetChanged(final AppBarLayout appBarLayout, final int verticalOffset) {
if (mBottomSheetLayout != null && mBottomSheetLayout.isSheetShowing() && mBottomSheetLayout.getState() == State.EXPANDED) {
float progress = (float) -verticalOffset/mAppBarLayout.getTotalScrollRange();
movingIconImageView.setX(mMStartMarginLeft + (progress * (actionBarHeight - mMStartMarginLeft)));
if (startY == 0)
startY = movingIconImageView.getY();
if (scaleDiff == 0) {
scaleDiff = 1 - (actionBarHeight - actionBarIconPadding)/movingIconImageView.getHeight();
movingIconImageView.setPivotY(movingIconImageView.getHeight());
}
movingIconImageView.setScaleX(1f - progress * scaleDiff);
movingIconImageView.setScaleY(1f - progress * scaleDiff);
movingIconImageView.setY(startY - progress * actionBarIconPadding/2 + mMStartMarginBottom * progress);
}
}
});
return view;
}
/**
* returns the height of the action bar
*/
public static int getActionBarHeight(final Context context) {
// based on http://stackoverflow.com/questions/12301510/how-to-get-the-actionbar-height
final TypedValue tv = new TypedValue();
int actionBarHeight = 0;
if (context.getTheme().resolveAttribute(R.attr.actionBarSize, tv, true))
actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, context.getResources()
.getDisplayMetrics());
return actionBarHeight;
}
public void setBottomSheetLayout(final BottomSheetLayout bottomSheetLayout) {
mBottomSheetLayout = bottomSheetLayout;
if (mBottomSheetLayout != null && mAppBarLayout != null)
mBottomSheetLayout.setAppBarLayout(mAppBarLayout);
mBottomSheetLayout.addOnSheetStateChangeListener(new OnSheetStateChangeListener() {
private ViewPropertyAnimator mToolbarAnimation;
State lastState;
@Override
public void onSheetStateChanged(final State state) {
if (lastState == state)
return;
lastState = state;
if (state != State.EXPANDED) {
if (mToolbarAnimation != null)
mToolbarAnimation.cancel();
mToolbarAnimation = null;
mToolbar.setAlpha(0);
mToolbar.setVisibility(View.INVISIBLE);
} else if (mToolbarAnimation == null) {
mToolbar.setVisibility(View.VISIBLE);
mToolbar.setTranslationY(-mToolbar.getHeight()/3);
mToolbarAnimation = mToolbar.animate().setDuration(getResources().getInteger(android.R.integer.config_longAnimTime));
mToolbarAnimation.alpha(1).translationY(0).start();
}
}
});
}
@Override
public ViewTransformer getViewTransformer() {
return new BaseViewTransformer() {
private ViewPropertyAnimator mBottomSheetBackgroundImageViewFadeInAnimation, mBottomSheetBackgroundImageViewFadeOutAnimation;
private Float mOriginalContactPhotoXCoordinate = null;
private final float mOriginalBottomSheetBackgroundImageViewTranslationY = mBottomSheetBackgroundImageView.getTranslationY();
@Override
public void transformView(final float translation, final float maxTranslation, final float peekedTranslation, final BottomSheetLayout parent, final View view) {
if (mOriginalContactPhotoXCoordinate == null)
mOriginalContactPhotoXCoordinate = movingIconImageView.getX();
if (translation < mBottomSheetHeight)
return;
if (translation == mBottomSheetHeight) {
if (mBottomSheetBackgroundImageViewFadeInAnimation != null)
mBottomSheetBackgroundImageViewFadeInAnimation.cancel();
mBottomSheetBackgroundImageViewFadeInAnimation = null;
if (mBottomSheetBackgroundImageViewFadeOutAnimation == null)
mBottomSheetBackgroundImageViewFadeOutAnimation = mBottomSheetBackgroundImageView.animate().alpha(0);
} else {
if (mBottomSheetBackgroundImageViewFadeOutAnimation != null)
mBottomSheetBackgroundImageViewFadeOutAnimation.cancel();
mBottomSheetBackgroundImageViewFadeOutAnimation = null;
if (mBottomSheetBackgroundImageViewFadeInAnimation == null) {
mBottomSheetBackgroundImageViewFadeInAnimation = mBottomSheetBackgroundImageView.animate().alpha(1);
}
}
float progress = (translation - mBottomSheetHeight)/(maxTranslation - mBottomSheetHeight);
//Log.d("AppLog", "translation:" + translation + " maxTranslation:" + maxTranslation + " progress:" + progress);
//movingIconImageView.setY(progress * (mBottomSheetHeight - movingIconImageView.getHeight()));
movingIconImageView.setY(progress * (mBottomSheetHeight - movingIconImageView.getHeight() - mMStartMarginBottom));
movingIconImageView.setX(mOriginalContactPhotoXCoordinate - progress * (mOriginalContactPhotoXCoordinate - mMStartMarginLeft));
//mBottomSheetBackgroundImageView.setAlpha(progress);
mBottomSheetBackgroundImageView.setTranslationY(mOriginalBottomSheetBackgroundImageViewTranslationY - progress * mOriginalBottomSheetBackgroundImageViewTranslationY);
}
};
}
}
Đây là xml của tôi: -
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
android:id="@+id/main_content"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="@dimen/header_height"
android:background="@null">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="168dp"
android:layout_marginTop="40dp"
android:background="#eee">
</FrameLayout>
<ImageView
android:id="@+id/backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:translationY="40dp"
app:layout_collapseMode="parallax"/>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ToolbarColoredBackArrow"/>
<ImageView
android:id="@+id/movingIconImageView"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_gravity="center_horizontal" android:background="#f00"
android:src="@drawable/test"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/window_color"
android:orientation="vertical"
android:paddingTop="24dp">
<include layout="@layout/junk_cardview"/>
<include layout="@layout/junk_cardview"/>
<include layout="@layout/junk_cardview"/>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<!--<android.support.design.widget.FloatingActionButton-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content"-->
<!--android:layout_margin="@dimen/fab_margin"-->
<!--android:clickable="true"-->
<!--android:src="@android:drawable/ic_menu_send"-->
<!--app:layout_anchor="@id/appbar"-->
<!--app:layout_anchorGravity="bottom|right|end"/>-->
Tôi muốn phông nền hình ảnh của tôi để trượt lên w hich chỉ mờ dần với trượt!
Lưu ý: Trong mẫu thư viện Tôi nhận ImageView alpha 0-1 nhưng tôi muốn trượt imageUp tôi không chỉ động như như hình ảnh động alpha!
Câu hỏi này [đã được tham chiếu từ meta] (https://meta.stackoverflow.com/q/312797/3614835). –
@ JeffreyBosboom vâng tôi đã xem lại điều đó nhưng tôi không có ý định đặt một câu hỏi hay câu hỏi hay chỉ vì đây là trang web tôi muốn hỏi truy vấn hoặc câu hỏi của tôi như trang web được cho là gì. – Hardy
@JeffreyBosboom và cũng có thể nếu bạn không thể trả lời câu hỏi thì tại sao mọi người làm cho nó trở thành điểm tiêu cực? Tôi không thể hiểu nó – Hardy