Tinder like ANDROID stretch top ScrollView
or just
Pull to zoom:
This is a Tinder like android Stretch Top ScrollView / pull to zoom custom View.. The Examples show you how can you use this type of view
Gifs:
Usage for a top ImageView in xml:
<?xml version="1.0" encoding="utf-8"?> <hu.lacroix82.stretchtopviewlibrary.StretchTopScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/stretchTopView"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="200dp"
android:id="@+id/topView"
android:src="@drawable/img1"
android:scaleType="centerCrop"
/>
<include layout="@layout/view_bottom" />
</LinearLayout> </hu.lacroix82.stretchtopviewlibrary.StretchTopScrollView>Usage for a top ViewPager in xml:
<?xml version="1.0" encoding="utf-8"?> <hu.lacroix82.stretchtopviewlibrary.StretchTopScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/stretchTopView"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="400dp"
android:id="@+id/topView"
>
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent" />
<com.viewpagerindicator.CirclePageIndicator
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center|bottom"
android:layout_marginBottom="20dp"
android:id="@+id/indicator"
/>
</FrameLayout>
<include layout="@layout/view_bottom" />
</LinearLayout> </hu.lacroix82.stretchtopviewlibrary.StretchTopScrollView>after just use in code:
stretchTopView.setFactor(1.7f);
stretchTopView.setChangeListener(new StretchTopScrollView.onOverScrollChanged() {
@Override
public void onChanged(float factor) {
descriptionTextView.setAlpha(factor);
}
}
);
.setFactor(float v) : a float factor for the stretch, between 1.0f and maybe 2.0f, optional, default is 1.6f
.setChangeListener(...) : a simple callback that can return the animated factor in a float : 0-100%, between 0f and 1f
Author:
created by Kozári László