I am trying to populate a gridview with image thumbnails. I am unable to center the child items and a mismatch occurs when the image orientation is different i.e landscape vs portrait. The pic shows how it is coming out. I dont want to change the size of the thumbnails but to display the text view on the same level and the imageview to be centered accordingly.
photo gridview with childs not centered
Gridview XML:
<syook.syookfirst.classes.Utils.ExpandableHeightGridView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/listview_call_photos"
android:layout_marginLeft="2dp"
android:layout_marginRight="2dp"
android:layout_weight="1"
android:nestedScrollingEnabled="true"
android:gravity="center"
android:layout_gravity="center"
android:numColumns="auto_fit">
</syook.syookfirst.classes.Utils.ExpandableHeightGridView>
ExpandableHeightGridView class:
public class ExpandableHeightGridView extends GridView
{
boolean expanded = false;
public ExpandableHeightGridView(Context context)
{
super(context);
}
public ExpandableHeightGridView(Context context, AttributeSet attrs)
{
super(context, attrs);
}
public ExpandableHeightGridView(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
}
public boolean isExpanded()
{
return expanded;
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
// HACK! TAKE THAT ANDROID!
if (isExpanded())
{
// Calculate entire height by providing a very large height hint.
// But do not use the highest 2 bits of this integer; those are
// reserved for the MeasureSpec mode.
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
ViewGroup.LayoutParams params = getLayoutParams();
params.height = getMeasuredHeight();
}
else
{
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
public void setExpanded(boolean expanded)
{
this.expanded = expanded;
}
}
Gridview child layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/button_pressed_nocolor_all"
android:gravity="center">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/photo_thumb_calldetails"
android:padding="5dp"
android:layout_gravity="center" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/label_photo_name"
android:textSize="12sp"
android:layout_gravity="center"
android:gravity="center"
android:padding="2dp"
android:layout_marginBottom="2dp" />
Appreciate any help on this. I tried searching for such issues but haven't been able to resolve it with any of the solutions provided.
Setting the height of ImageView to 100dp works. Thanks :)
Just set fix width and set gravity to center.
android:layout_width="8" and
android:gravity="center"
Related
I've only included one direct child in the scroll view , and i've added the below codes in the java files. When i remove the Utility method the listview appear fully, but doesnt work as a scrollview
ScrollView sv_fragment_globe;
sv_fragment_globe = (ScrollView)rowView.findViewById(R.id.sv_fragment_globe);
sv_fragment_globe.smoothScrollTo(0,0);
Utility.setListViewHeightBasedOnChildren(holder.lv_globe);
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/sv_fragment_globe"
android:fillViewport="true"
>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="0dp"
android:orientation="vertical"
>
<ImageView
android:layout_width="fill_parent"
android:layout_height="200dp"
android:src="#drawable/home_hospital1"
android:id="#+id/iv_vp_globe"
android:scaleType="fitXY"
/>
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/lv_globe"
>
</ListView>
</LinearLayout>
</ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
If you have more than two scrolling views inside any Layout, then the parent scrolling view will only scrolls. Follow the steps below to allows the child's scrolling elements to scroll.
Step 1:
Create a custom ListView.
public class ExpandableHeightListView extends ListView
{
boolean expanded = false;
public ExpandableHeightListView(Context context)
{
super(context);
}
public ExpandableHeightListView(Context context, AttributeSet attrs)
{
super(context, attrs);
}
public ExpandableHeightListView(Context context, AttributeSet attrs,int defStyle)
{
super(context, attrs, defStyle);
}
public boolean isExpanded()
{
return expanded;
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
// HACK! TAKE THAT ANDROID!
if (isExpanded())
{
// Calculate entire height by providing a very large height hint.
// But do not use the highest 2 bits of this integer; those are
// reserved for the MeasureSpec mode.
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
ViewGroup.LayoutParams params = getLayoutParams();
params.height = getMeasuredHeight();
}
else
{
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
public void setExpanded(boolean expanded)
{
this.expanded = expanded;
}
}
Step 2: Add the line below after initializing the Listview object.
lv_selected_time_zone.setExpanded(true);
Try this
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="200dp"
android:src="#android:drawable/home_hospital"
android:id="#+id/iv_vp_globe"
android:scaleType="fitXY"
/>
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/lv_globe"
android:layout_weight="1"
>
</ListView>
</LinearLayout>
</ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
This is how it looks:
I've added an image to my layout. Because the image was a big small, and ended up in the middle of my screen, not filling the entire width of the screen, i had to stretch it out. With that, the letters obviously stretch out as well, which makes it look bad. I know that this might be unfixable. Every image needs to be stretched out, so the colors are fine, but the letters are always a bit hazy after that.
If this has no solutions at all, just tell me so I know that. If you think you know how to fix this, please help.
Don't think it's relevant, but this is the code that i added the image with:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.rodekruis.MainActivity">
<ImageView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:src="#drawable/rkz_logo4"
android:layout_marginBottom="30dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:scaleType="fitXY"
/>
Try to remove the attributes android: scaleType = "fitXY" and replace the android: layout_width = "fill_parent" on android: layout_width = "wrap_content"
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/rkz_logo4"
android:layout_marginBottom="30dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
/>
Create MyImageView.class
public class MyImageView extends ImageView {
public final static int WIDTH_IMAGE = 640;
public final static int HEIGHT_IMAGE = 200;
public MyImageView(Context context) {
super(context);
}
public MyImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MyImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = width * HEIGHT_IMAGE / WIDTH_IMAGE;
setMeasuredDimension(width, height);
}
}
in xml
<?xml version="1.0" encoding="utf-8"?>
<your.package.MyImageView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/image_banner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/rkz_logo4"
android:layout_marginBottom="30dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"/>
How can I force an android GridView to generate square cells (Cell's height equal to cell's width)
GridView has 10*9 cells and the app must support multiple screens !
I used a Linear Layout:
row_grid.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="0dp" >
<ImageView
android:id="#+id/item_image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY"
android:src="#drawable/ic_launcher" >
</ImageView>
</LinearLayout>
and GridView:
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/katy" >
<GridView
android:id="#+id/gridView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:horizontalSpacing="0dp"
android:numColumns="4"
android:stretchMode="columnWidth"
android:verticalSpacing="0dp" >
</GridView>
</RelativeLayout>
Each cell of GridView contains a image that has same width and height.
images are larger than cells and must stretch to fit in cells.
First, you're going to want to create a custom View class that you can use instead of the default LinearLayout you're using. Then you want to override the View's onMeasure call, and force it to be square:
public class GridViewItem extends ImageView {
public GridViewItem(Context context) {
super(context);
}
public GridViewItem(Context context, AttributeSet attrs) {
super(context, attrs);
}
public GridViewItem(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, widthMeasureSpec); // This is the key that will make the height equivalent to its width
}
}
Then you can change your row_grid.xml file to:
<path.to.item.GridViewItem xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/item_image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:src="#drawable/ic_launcher" >
</path.to.item.GridViewItem>
Just be sure to change "path.to.item" to the package where your GridViewItem.java class resides.
I also removed your LinearLayout parent since it wasn't doing anything for you there.
Edit:
Also changed scaleType from fitXY to centerCrop so that your image doesn't stretch itself and maintains its aspect ratio. And, as long as it's a square image, nothing should be cropped, regardless.
You can Override your linear layout
public class MyLinearLayout extends LinearLayout {
public MyLinearLayout(Context context) {
super(context);
}
public MyLinearLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MyLinearLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, widthMeasureSpec); // This is the key that will make the height equivalent to its width
}
}
then use it in the item_grid.xml
<?xml version="1.0" encoding="utf-8"?>
<com.example.MyLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/item_grid"
android:layout_margin="2dp"
android:padding="3dp"
android:gravity="center">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Category Name"
android:textStyle="bold"
android:textColor="#color/colorPrimary"
android:id="#+id/tvCategoryName" />
</com.example.MyLinearLayout>
How about using ConstraintLayout?
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:padding="3dp">
<ImageView
android:id="#+id/imageView"
android:layout_width="0dp"
android:layout_height="0dp"
android:scaleType="centerCrop"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
Works nicely, thank you! A small improvement I required would be always pick the smaller value, to prevent overshooting the screen:
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if(heightMeasureSpec < widthMeasureSpec) {
super.onMeasure(heightMeasureSpec, heightMeasureSpec);
} else if(widthMeasureSpec < heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, widthMeasureSpec);
} else {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
import android.content.Context;
import android.util.AttributeSet;
import android.widget.RelativeLayout;
public class GridViewItem extends RelativeLayout {
public GridViewItem(Context context) {
super(context);
}
public GridViewItem(Context context, AttributeSet attrs) {
super(context, attrs);
}
public GridViewItem(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, widthMeasureSpec); // This is the key that will make the height equivalent to its width
}
}
If your grid item just have an image then the answer is very good. But you want to add multiple items in your grid item then you must create Your Custom GridViewItem extending the layout you want your grid item to be. For example in my case I had RelativeLayout as the parent view so I created GridViewItem extending the RelativeLayout and it worked flawlessly.
Just make sure that your images are square. And make the container wrap_content.
I try to create custom ScrollView, which will have attribute max_height, but i faced with problem. When I set custom height, ScrollView doesn't show TextView.
Lite version of my code:
Layout:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.example.scrollviewtest.ExpandScrollView
android:id="#+id/scrollView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:background="#Fe6" >
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextView TextView TextView TextView TextView" />
</com.example.scrollviewtest.ExpandScrollView>
ExpandScrollView.java
public class ExpandScrollView extends ScrollView {
public ExpandScrollView(Context context) {
super(context);
}
public ExpandScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int widthSize = MeasureSpec.getSize(widthMeasureSpec);
setMeasuredDimension(widthSize, 180);
}}
So what do i do wrong?
Just remove the onMeasure() method in ExpandScrollView class. It is causing problem.
Once you remove it textview will be visible.
The problem was solved!
I just added super.onMeasure(widthMeasureSpec, heightMeasureSpec); before widthSize
I am trying to display a dynamically-growing list of strings with a checkbox in a GridView, which is itself in a TableLayout.
I can display these "checkboxed" strings fine in a row. My problem occurs when I let the user dynamically add new strings in the GridView.
I created a custom adapter that receives the list of strings. Say we have n strings. The adapter returns 'n + 1' for the items count; in getView, it returns:
a View with a LinearLayout, itself having a CheckBox and an EditText for the first n items,
a LinearLayout with a simple button, with a '+' caption for the 'n + 1'th item.
So far so good. When the '+' button is clicked, I add an empty string to the list of strings and call notifyDataSetChanged in the adapter.
The GridView redraws itself with one more item. BUT it keeps its original height and creates a vertical scrollbar. I'd like the GridView to expand its height (i.e. take up more space on screen and show all items).
I've tried to change the screen to a vertical LinearLayout instead of a TableLayout, but the results is the same.
Here is the layout of my screen:
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<!-- other lines omitted -->
<LinearLayout android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/wine_rack_explanation"
android:layout_gravity="center_vertical" />
<GridView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="#+id/gvRack"
android:columnWidth="90dp"
android:numColumns="auto_fit" />
</LinearLayout>
<!-- other lines omitted -->
</LinearLayout>
</ScrollView>
The checkbox + string item from the adapter is defined like this:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<CheckBox android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/cbCoordinate"
android:checked="true"
/>
<EditText android:id="#+id/txtCoordinate"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
The '+' button item is defined like this:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button android:id="#+id/btnAddBottle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/add_bottle_caption" />
</LinearLayout>
I've tried to call invalidate or invalideViews on the GridView after an item is added. Also called invalidate on the TableLayout and TableRow (in the previous layout of the screen). No success.
Any idea why the GridView refuses to extend its height ?
(Note that I am completely open to using an other viewgroup than the GridView)
Use this code
public class MyGridView extends GridView {
public MyGridView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MyGridView(Context context) {
super(context);
}
public MyGridView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
}
}
I have done this way:
This code will set GridView height as per number of Child.
Note: Where 5 is number of columns.
private void setDynamicHeight(GridView gridView) {
ListAdapter gridViewAdapter = gridView.getAdapter();
if (gridViewAdapter == null) {
// pre-condition
return;
}
int totalHeight = 0;
int items = gridViewAdapter.getCount();
int rows = 0;
View listItem = gridViewAdapter.getView(0, null, gridView);
listItem.measure(0, 0);
totalHeight = listItem.getMeasuredHeight();
float x = 1;
if( items > 5 ){
x = items/5;
rows = (int) (x + 1);
totalHeight *= rows;
}
ViewGroup.LayoutParams params = gridView.getLayoutParams();
params.height = totalHeight;
gridView.setLayoutParams(params);
}
Hope this will help you.
Developed on the idea shared by https://stackoverflow.com/users/4233197/hiren-patel, so Thank You :)
Pass you GridView and its number of columns through this function and you are done.
private void setGridViewHeightBasedOnChildren(GridView gridView, int noOfColumns) {
ListAdapter gridViewAdapter = gridView.getAdapter();
if (gridViewAdapter == null) {
// adapter is not set yet
return;
}
int totalHeight; //total height to set on grid view
int items = gridViewAdapter.getCount(); //no. of items in the grid
int rows; //no. of rows in grid
View listItem = gridViewAdapter.getView(0, null, gridView);
listItem.measure(0, 0);
totalHeight = listItem.getMeasuredHeight();
float x;
if( items > noOfColumns ){
x = items/noOfColumns;
//Check if exact no. of rows of rows are available, if not adding 1 extra row
if(items%noOfColumns != 0) {
rows = (int) (x + 1);
}else {
rows = (int) (x);
}
totalHeight *= rows;
//Adding any vertical space set on grid view
totalHeight += gridView.getVerticalSpacing() * rows;
}
//Setting height on grid view
ViewGroup.LayoutParams params = gridView.getLayoutParams();
params.height = totalHeight;
gridView.setLayoutParams(params);
}
When onMeasure() is called for GridView, if heightMode is MeasureSpec.UNSPECIFIED, then the gridview will be as tall as all of it's contained elements (plus some padding).
To ensure that this is the case, you can make a quick custom view extending GridView and including the following override:
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, MeasureSpec.UNSPECIFIED);
}
This is working for me:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background" >
<!-- MORE LAYOUTS IF YOU WANT -->
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:fillViewport="true" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<!-- MORE LAYOUTS IF YOU WANT -->
<GridView
android:id="#+id/gridview"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginBottom="10dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="5dp"
android:gravity="center"
android:horizontalSpacing="10dp"
android:numColumns="auto_fit"
android:stretchMode="columnWidth"
android:verticalSpacing="10dp" >
</GridView>
<!-- MORE LAYOUTS IF YOU WANT -->
</RelativeLayout>
</ScrollView>
</RelativeLayout>
Graham's solution did not work for me. However this one (with a bit more hacking) did: https://stackoverflow.com/a/8483078/479478
This is working for me
public class MyGridView extends GridView {
public MyGridView(Context context) {
super(context);
}
public MyGridView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MyGridView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
// set childs height to same value as child that has highest value
for(int i=0; i<getChildCount(); i++) {
MyLinearLayout child = (MyLinearLayout) getChildAt(i);
AbsListView.LayoutParams params = (AbsListView.LayoutParams) child.getLayoutParams();
params.height = MyLinearLayout.maxHeight;
child.setLayoutParams(params);
}
// calculate total height and apply to the grid
double numRow = Math.ceil((double) getCount() / (double) getNumColumns());
LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) this.getLayoutParams();
params.height = (int) numRow * MyLinearLayout.maxHeight;
this.setLayoutParams(params);
// invalidate after change grid's height
this.invalidate();
}
}
MyLinearLayout class
public class MyLinearLayout extends LinearLayout {
public static int maxHeight = 0;
public MyLinearLayout(Context context) {
super(context);
}
public MyLinearLayout(Context context, #Nullable AttributeSet attrs) {
super(context, attrs);
}
public MyLinearLayout(Context context, #Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
if (maxHeight<this.getMeasuredHeight()) maxHeight=this.getMeasuredHeight();
}
}
The GridView contains some childs of MyLinearLayout, and this is the layout
<?xml version="1.0" encoding="utf-8"?>
<com.mysystem.view.MyLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="100dp"
android:layout_height="100dp"
android:background="#ddd"
android:padding="0.5dp"
android:layout_gravity="top"
android:gravity="center_horizontal"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff"
android:padding="20dp"
android:orientation="vertical">
<ImageView
android:id="#+id/img_menu"
android:layout_width="30dp"
android:layout_gravity="center_horizontal"
android:layout_height="30dp"
android:layout_marginTop="5dp"/>
<TextView
android:id="#+id/tv_menu"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:textAlignment="center"
android:textColor="#000"
android:text="Title"
android:textSize="10sp"/>
</LinearLayout>
</com.mysystem.view.MyLinearLayout>