Item Layout
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@id/top_panel"
android:background="@drawable/transback"
app:cardCornerRadius="10dp"
android:layout_marginBottom="1dp"
android:layout_marginLeft="1dp"
android:layout_marginRight="1dp">
<ImageView
android:id="@+id/categoryImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY" />
</android.support.v7.widget.CardView>
I want to set image size square like screen width = image height
this is my item which i use for recycler view
how it is possible..?
You can customise ImageView
to create SquareImageView
public class SquareImageView extends ImageView {
public SquareImageView(Context context) {
super(context);
}
public SquareImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public SquareImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int width = getMeasuredWidth();
setMeasuredDimension(width, width);
}
}
You can set your image aspect ratio to 1:1 to achieve your square image like this:
<ImageView
android:id="@+id/imageView"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintDimensionRatio="1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:src="@tools:sample/avatars[1]" />
If you want your screen to be responsive to all screen sizes you can use guidelines and give them some percents of your screen like this:
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="@+id/guideline4"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/guideline3"
tools:src="@tools:sample/avatars[1]" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.3" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.6" />
</androidx.constraintlayout.widget.ConstraintLayout>
add those line on Android Mani fest
<supports-screens
android:resizeable="true"
android:smallScreens="true"
android:normalScreens="true"
android:largeScreens="true"
android:anyDensity="true"
/>
And this was my imageView
<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">
<ImageView
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintDimensionRatio="1:1"
android:scaleType="fitXY"
android:adjustViewBounds="true"
android:src="@drawable/image"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintStart_toStartOf="parent"/>
You can use this Square Imageview
Custom Imageview:
public class SquareImageView extends ImageView {
public SquareImageView(final Context context) {
super(context);
}
public SquareImageView(final Context context, final AttributeSet attrs) {
super(context, attrs);
}
public SquareImageView(final Context context, final AttributeSet attrs, final int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
final int width = getDefaultSize(getSuggestedMinimumWidth(), widthMeasureSpec);
setMeasuredDimension(width, width);
}
@Override
protected void onSizeChanged(final int w, final int h, final int oldw, final int oldh) {
super.onSizeChanged(w, w, oldw, oldh);
}
}
XML
<yourpackagename.SquareImageView
android:id="@+id/item_iv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop" />
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