pinch to zoom imageview android studio
hello android developer In this android programming code example, we are going the learn how to pinch ImageView to zoom-in and zoom-out in android using android studio. learn pinch to zoom imageview android studio.
XML (activity_main.xml)
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<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" > <TextView android:id="@+id/pinchTitleText" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="8dp" android:text="Pinch Zoom Demo" app:layout_constraintBottom_toTopOf="@+id/imageView" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" /> <ImageView android:id="@+id/imageView" android:layout_width="match_parent" android:layout_height="477dp" android:layout_below="@+id/pinchTitleText" android:maxWidth="50dp" android:maxHeight="100dp" android:scaleType="matrix" android:src="@drawable/android" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/pinchTitleText" /> </android.support.constraint.ConstraintLayout> |
Now run your project/app to test pinch to zoom imageview android app through android device or any Emulator .
