I'm using GridView in my app:
<GridView
android:id="#+id/main_grid_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:numColumns="4" >
</GridView>
Every cell in this GridView is ImageView:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:id="#+id/img"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:contentDescription="#string/img"
android:scaleType="centerCrop" />
</RelativeLayout>
All cells in my GridView must be square (height must equals width) and image must fit cell. But it always looks like rectangle... How I can to implements square cells in GridView?
Make sure your cell is square.
For this, you can set the width and height of the RelativeLayout programmatically with the value screen_width/4.
This can do the trick
#Override public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
int size = width > height ? height : width;
setMeasuredDimension(size, size);
}
As mentioned in the answer here - Gridview with two columns and auto resized images
You can make a custom ImageView for this
public class SquareImageView extends ImageView {
public SquareImageView(Context context) {
super(context);
}
public SquareImageView(Context context, AttributeSet attributeSet) {
super(context, attributeSet);
}
public SquareImageView(Context context, AttributeSet attributeSet, int defStyle) {
super(context, attributeSet, defStyle);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
setMeasuredDimension(getMeasuredWidth(), getMeasuredWidth());
} else {
setMeasuredDimension(getMeasuredHeight(), getMeasuredHeight());
}
}
}
and then use this in your grid view cell layout as
<package_containing_SquareImageView.SquareImageView
android:layout_width="match_parent"
android:layout_height="match_parent" />
Related
In my app I use a GridView but my values for each cells are not same size, when I put my values in GridView, it automatically set a size for all cells(I think it consider first cell height for all cells), can you tell me how can I fix that?
GridView Adapter:
You should try to use custom view your row Item in Gridview
public class SquareRelativeLayout extends RelativeLayout {
public SquareRelativeLayout(Context context) {
super(context);
}
public SquareRelativeLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public SquareRelativeLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
if (widthMeasureSpec < heightMeasureSpec)
super.onMeasure(widthMeasureSpec, widthMeasureSpec);
else
super.onMeasure(heightMeasureSpec, heightMeasureSpec);
}
}
In GridView row XML
<SquareRelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<ImageView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/image"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:adjustViewBounds="true"
android:contentDescription="#string/descr_image"
android:scaleType="centerCrop" />
</SquareRelativeLayout>
Hope this helps you.
I suggest please use RecyclerView with StaggeredGridLayoutManager, Throw this you can get layout same which you draw upside,
This is the link which will help you:
https://android--code.blogspot.in/2015/12/android-recyclerview.html
i use Universal image loader to load some imageview(large height) to listview.
this is listview(custom for zoom in/out) in activity:
<noname.test1.CustomListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/listviewImg" />
this is list_img.xml for listview:
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/imageview1">
</ImageView>
this is image i want to load (size 400px X 5312px):
link
this is result:
I want image when show is full screen or larger.
How to fix it?
create this class and use this instead of imageView
/**
* Created by farazkhonsari on 1/26/16.
*/
public class ScaledImageView extends ImageView {
public ScaledImageView(Context context) {
super(context);
}
public ScaledImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ScaledImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
try {
Drawable drawable = getDrawable();
if (drawable == null) {
setMeasuredDimension(0, 0);
} else {
int measuredWidth = MeasureSpec.getSize(widthMeasureSpec);
int measuredHeight = MeasureSpec.getSize(heightMeasureSpec);
int width = measuredWidth;
int height = width * drawable.getIntrinsicHeight() / drawable.getIntrinsicWidth();
setMeasuredDimension(width, height);
}
} catch (Exception e) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
and use this class in layout like this:
<ir.farazGroup.YeJoke.tools.ScaledImageView
android:id="#+id/image"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:src="#drawable/c"
android:scaleType="fitCenter"
/>
you should change scaleType of imageViwe and set adjustViewBound true:
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/imageview1"
android:scaleType="centerCrop"
android:adjustViewBounds="true">
</ImageView>
you can try other option for scaleType and see which one is good for you!
and you can read about scaleType here:
scaleTypes
Try this solution: [Set this inside onCreate or onCreateView after inflating the list]
imageView = (ImageView) findViewById(R.id. imageview1);
Display display = getWindowManager().getDefaultDisplay();
DisplayMetrics metrics = new DisplayMetrics();
display.getMetrics(metrics);
float screenWidth = metrics.widthPixels;
imageView.getLayoutParams().width = (int) screenWidth; // Takes the whole screen width
try this i'll hope i will help you
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/imageView"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:src="#drawable/locked_image"
android:scaleType="fitXY"
/>
I have a RelativeLayout with the weight property for width , and using the 130dp for height , but it seem's like a rectangle and now i want height equal to width (i want to achieve to square style) , like this image :
this is my xml :
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="3dp">
<RelativeLayout
android:layout_width="0dp"
android:layout_height="130dp"
android:layout_marginRight="2dp"
android:layout_weight="1"
android:background="#00c4ff"
android:onClick="blockClick">
</RelativeLayout>
<RelativeLayout
android:layout_width="0dp"
android:layout_height="130dp"
android:layout_marginLeft="2dp"
android:layout_marginRight="2dp"
android:layout_weight="1"
android:background="#00c4ff"
android:onClick="blockClick">
</RelativeLayout>
</LinearLayout>
Make your own implementation of RelativeLayout
Code sample for aspect ratio ImageView
Code example:
public class MyRelativeLayout extends RelativeLayout{
[...]
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int newWidth = getMeasuredWidth();
int newHeight = newWidth;
setMeasuredDimension(newWidth, newHeight);
}
[...]
}
Use custom RelativeLayout...
public class SquareRelativeLayout extends RelativeLayout {
public SquareRelativeLayout(Context context) {
super(context);
}
public SquareRelativeLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public SquareRelativeLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int width = getMeasuredWidth();
setMeasuredDimension(width, width);
}
}
Thinking about different screen of device, there is one solution:
Get the width of the screen. W
divide the W: W/2
Set every height of the RelativeLayout with W/2
I have used this solution to set the image View with fix ratio on different screen.
layout.width = getResources().getDisplayMetrics().widthPixels;
layout.height = (int) (layout.width / (2.0));
mRelativeView.setLayoutParams(layout);
I am trying to make a relative layout bounded within a circle i.e the relative layout should be like the square shown in the figure below.
I am trying to set width and height of the layout as:
√((diameter)²/2) which is about 70 %
(source: yogaflavoredlife.com)
public class SquareLayout extends RelativeLayout {
public SquareLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int originalWidth = MeasureSpec.getSize(widthMeasureSpec);
int originalHeight = MeasureSpec.getSize(heightMeasureSpec);
int required = Math.min(originalWidth, originalHeight) * 7 / 10;
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
setMeasuredDimension(required, required);
}
}
What I am getting is a rectangular layout instead of square layout:
Can anyone guide me where I am going wrong?
Sample usage:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.example.widget.SquareLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#F55C5C">
</com.example.widget.SquareLayout>
</RelativeLayout>
Here's how I got the solution. First I created a square frame to hold all the layouts.
public class SquareFrame extends FrameLayout {
public SquareFrame(Context context, AttributeSet attrs) {
super(context, attrs);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int originalWidth = MeasureSpec.getSize(widthMeasureSpec);
int originalHeight = MeasureSpec.getSize(heightMeasureSpec);
int required = Math.min(originalWidth, originalHeight);
super.onMeasure(
MeasureSpec.makeMeasureSpec(required, MeasureSpec.EXACTLY),
MeasureSpec.makeMeasureSpec(required, MeasureSpec.EXACTLY));
}
}
Then inserted all layouts within that square frame.
<com.example.widget.SquareFrame
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#5CF5FC">
<com.example.widget.SquareLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#F55C5C">
</com.example.widget.SquareLayout>
</com.example.widget.SquareFrame>
Here is what I got
a square, not a rectangle.
I am creating a custom LinearLayout just to measure and properly resize it:
public class Frame extends LinearLayout
{
private int width;
private int height;
private Context context;
public Frame(Context context, AttributeSet attrs)
{
super(context, attrs);
this.context=context;
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
int height = MeasureSpec.getSize(heightMeasureSpec);
int width = MeasureSpec.getSize(widthMeasureSpec);
int newwidth=MeasureSpec
.makeMeasureSpec(height*480/720,MeasureSpec.EXACTLY);
super.onMeasure(newwidth, heightMeasureSpec);
}
}
It works perfectly, but it obviously keeps its position on the place before the measure changed so it is not centered horizontally anymore. How can I override the settings in my custom LinearLayout to make it appear in the horizontal center?
This is how I call it in he xml file:
com.myproject.main.Frame
android:id="#+id/frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/button"
android:layout_marginBottom="10dp"
android:gravity="center"
android:orientation="horizontal"
android:weightSum="480" >