I have recycler view which uses grid layout manager to show items in 2 columns like this:
If you notice the image bottom margin is different for left row. In the item layout the image view has property "alignparentbottom=true", but all the items in the left row have this wrong margin at bottom (png file has no margin, I have verified.). I have extended RelativeLayout to make it square shaped like this:
public class SquareRelativeLayout extends RelativeLayout {
private static final int HEIGHT_RATIO = 1;
private static final int WIDTH_RATIO = 1;
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);
}
#TargetApi(Build.VERSION_CODES.LOLLIPOP)
public SquareRelativeLayout(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// Set a square layout.
/*int widthSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSize = (int) (HEIGHT_RATIO / WIDTH_RATIO * widthSize);
int newHeightSpec = MeasureSpec.makeMeasureSpec(heightSize, MeasureSpec.EXACTLY);*/
super.onMeasure(widthMeasureSpec, widthMeasureSpec);
}
}
Here is the whole item layout:
<?xml version="1.0" encoding="utf-8"?>
<com.org.framework.ui.widget.SquareRelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/rl_root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/transparent_round_rect"
android:layout_marginTop="#dimen/margin_16" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/ll_top"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="20"
android:layout_marginTop="#dimen/margin_12"
android:layout_marginRight="#dimen/margin_12"
android:layout_marginLeft="#dimen/margin_12">
<TextView
android:id="#+id/tv_wallet_name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="15"
style="#style/SmallWhiteText"
android:text="Reimbursement"
android:ellipsize="end"
android:lines="1"
android:maxLines="1" />
<RadioButton
android:id="#+id/rb_select"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="5"
android:layout_marginTop="-3dp"
android:layout_gravity="end|center_vertical"
android:buttonTint="#color/white" />
</LinearLayout>
<TextView
android:id="#+id/tv_amount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="#style/LargeWhiteText"
android:text="2000"
android:layout_marginRight="#dimen/margin_12"
android:layout_marginLeft="#dimen/margin_12"
android:layout_below="#id/ll_top"/>
<ImageView
android:id="#+id/iv_wallet_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/gift"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true"
/>
<!--android:layout_marginRight="-1.5dp"
android:layout_marginBottom="-7dp"-->
<FrameLayout
android:id="#+id/fl_na"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#435977"
android:layout_alignParentBottom="true"
android:padding="5dp"
android:visibility="gone">
<TextView
android:id="#+id/tv_not_applicable"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/text_not_applicable"
style="#style/VerySmallWhiteText"
android:layout_gravity="center_horizontal"/>
</FrameLayout>
</RelativeLayout>
</com.org.framework.ui.widget.SquareRelativeLayout>
First- Items shouldn't have different bottom margins for left and right columns. What's the reason?
second- I have tried to programatically fix the layout inside onBindViewHolder method (with/without layout tree observer) like this:
ViewTreeObserver tob = uvh.rlRoot.getViewTreeObserver();
tob.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
uvh.rlRoot.getViewTreeObserver().removeOnGlobalLayoutListener(this);
Log.e("flNa", (uvh.flNa.getTop()+uvh.flNa.getHeight())+",");
Log.e("ivWallet", (uvh.ivLogo.getTop()+uvh.ivLogo.getHeight())+",");
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) uvh.ivLogo.getLayoutParams();
params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
//params.bottomMargin = 0;
//uvh.ivLogo.setBottom(-10);
uvh.ivLogo.setTop(uvh.rlRoot.getHeight()-uvh.ivLogo.getHeight());
uvh.ivLogo.setLayoutParams(params);
RelativeLayout.LayoutParams params1 = (RelativeLayout.LayoutParams) uvh.flNa.getLayoutParams();
params1.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
params1.bottomMargin = 1;
uvh.flNa.setLayoutParams(params1);
uvh.rlRoot.forceLayout();
uvh.rlRoot.invalidate();
uvh.rlRoot.requestLayout();
}
});
This has no effect on layout.
How to fix this issue?
Related
I'm making some grid with image and text, using GridLayoutManager. But currently my items have different height if on one row text is on one line and on the second row text has two lines, which don't looks good. How to make all items equals to each other (best option if every item height will be equal to max element height
<?xml version="1.0" encoding="utf-8"?>
<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="wrap_content"
android:orientation="vertical"
android:background="#color/white"
android:layout_margin="1dp">
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:textAlignment="center"
tools:text="Long title long title long title(560)" />
</RelativeLayout>
</LinearLayout>
Try below code may work for you, where I have created custom relative layout
package com.test;
public class MySquareRelativeLayout extends RelativeLayout {
public MySquareRelativeLayout(Context context) {
super(context);
}
public MySquareRelativeLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MySquareRelativeLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
#TargetApi(VERSION_CODES.LOLLIPOP)
public MySquareRelativeLayout(Context context, AttributeSet attrs,int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// Set a square layout.
super.onMeasure(widthMeasureSpec, widthMeasureSpec);
}
}
<?xml version="1.0" encoding="utf-8"?>
<com.test.MySquareRelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/elementRootView"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"/>
<TextView
android:id="#+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/image"
android:textAlignment="center"
tools:text="Long title long title long title(560)" />
</com.test.MySquareRelativeLayout>
Here is the sample code,
contact.xml
<ScrollView
android:id="#+id/scroll_view"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="none"
android:layout_marginBottom="55dp">
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.v7.widget.CardView
android:id="#+id/card_view"
style="#style/ContentFrame"
android:layout_marginTop="20dp"
android:layout_marginBottom="15dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:id="#+id/msg_listview_frame"
android:layout_marginTop="10dp">
<com.android.bundle.helper.NonScrollListView
android:id="#+id/contact_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#color/white_lilac"
android:dividerHeight="1dp"
android:footerDividersEnabled="false"
android:scrollbars="none">
</com.android.bundle.helper.NonScrollListView>
</LinearLayout>
</android.support.v7.widget.CardView>
</RelativeLayout>
</ScrollView>
To make ListView non-scrollable, I'm using this custom class NonScrollListView.
NonScrollListView.java
public class NonScrollListView extends ListView {
public NonScrollListView(Context context) {
super(context);
}
public NonScrollListView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public NonScrollListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(
Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);
ViewGroup.LayoutParams params = getLayoutParams();
params.height = getMeasuredHeight();
}
}
The adapter is been called more than 40 times, I have tried a couple of options from StackOverflow like changing listview height = fill_parent as well as match_parent.
I know this is an old issue, I'm new to android not able to resolve this one. Kindly help to resolve this issue.
Note: At any cost, ListView has to be inside ScrollView. I want to make CardView be scrollable.
Thanks
I want the homepage of my app to have different sections containing a list of items in every section. For this I have used a ScrollView. Inside the scrollview I have put a search area, and a ExpandableHeightGridView (this is a custom class that help the GridView to expand the space inside the ScrollView based on the number of items).
But regardless of this the scrollView doesn't work and search box appears at the top of the screen, meanwhile the GridView scrolls as if it wasn't inside ScrollView.
Below is my Code:
activity_main.xml
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/njoftime_background">
<ScrollView
android:id="#+id/sv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white"
android:layout_marginTop="?android:attr/actionBarSize"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/sr"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:background="#drawable/event_background_block"
android:padding="5dp">
<RelativeLayout
android:id="#+id/search_area"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:focusableInTouchMode="true"
android:background="#drawable/njoftime_item_background">
<ImageButton
android:id="#+id/btn_search"
android:layout_width="65dp"
android:layout_height="35dp"
android:layout_alignParentRight="true"
android:layout_marginLeft="1dp"
android:background="#color/njoftime_main_color"
android:onClick="searchPressed"
android:scaleType="fitCenter"
android:src="#drawable/ic_search_white" />
<EditText
android:id="#+id/search_text"
android:layout_width="fill_parent"
android:layout_height="35dp"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="#+id/btn_search"
android:background="#null"
android:ems="20"
android:imeOptions="actionSearch"
android:inputType="text"
android:maxLines="1"
android:paddingLeft="7dp"
android:textColor="#color/njoftime_desc"
android:textCursorDrawable="#null"
android:textSize="17sp" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/search_categories_area"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/search_area"
android:paddingBottom="7dp"
android:paddingTop="13dp">
<GridView
android:id="#+id/search_grid"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:drawSelectorOnTop="false"
android:horizontalSpacing="2dp"
android:numColumns="4" />
</RelativeLayout>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.example.crs.tempus.ExpandableHeightGridView
android:id="#+id/njoftime_list"
android:layout_width="match_parent"
android:horizontalSpacing="5dp"
android:verticalSpacing="5dp"
android:layout_marginTop="5dp"
android:layout_height="wrap_content"
android:background="#color/white"
android:drawSelectorOnTop="true"
android:numColumns="1" />
</RelativeLayout>
</LinearLayout>
</ScrollView>
<RelativeLayout
android:id="#+id/left_drawer"
android:layout_width="230dp"
android:layout_height="fill_parent"
android:layout_gravity="start"
android:layout_marginTop="?android:attr/actionBarSize"
android:background="#color/white"
android:orientation="vertical">
<ExpandableListView
android:id="#+id/list_slidermenu"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/white"
android:choiceMode="singleChoice"
android:dividerHeight="1dp"
android:drawSelectorOnTop="true"
android:groupIndicator="#null"
android:paddingBottom="13dp"
android:paddingLeft="7dp"
android:paddingRight="7dp"
android:paddingTop="13dp"></ExpandableListView>
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
ExpandableHeightGridView
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.
// View.MEASURED_SIZE_MASK represents the largest height possible.
int expandSpec = MeasureSpec.makeMeasureSpec(MEASURED_SIZE_MASK,
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;
}
}
The ExpandableHeightGridView, is used also in another activity and it works.
Any idea?
1) In your ExpandableHeightGridView class use below code inside your onMeasure override method. It works in my case.
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
}
Or
2) In your code you might need to call setExpanded method of ExpandableHeightGridView class and set it to true.
Hope one of this solution would works for you.
UPDATED---------
try to use a customScollview,create one CustomScrollview like this and use this
public class CustomScrollView extends ScrollView {
public CustomScrollView(Context context) {
super(context);
}
public CustomScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
#TargetApi(Build.VERSION_CODES.LOLLIPOP)
public CustomScrollView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return false;
}
}
android:fillviewport="true"
add this in your ScrollView ,like this
<CustomScrollView
android:fillviewport="true"
android:id="#+id/sv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white">
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"
I'm quite new to Android programming and I'm stuck on an simple problem.
I have a basic homepage with some buttons and a logo. I use a LinearLayout and the layout_weight attribute to distribute all the components.
Here is my code :
<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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="iut.project.findmeapp.MainActivity" >
<ImageView
android:id="#+id/activityMainAppLogoIv"
android:layout_width="match_parent"
android:layout_height="#dimen/null_height"
android:contentDescription="#string/description_logo"
android:layout_weight="1"
android:maxHeight="#dimen/img_maxHeight"
android:layout_margin="#dimen/img_margin"
android:src="#drawable/ic_launcher" />
<Button
android:id="#+id/activityMainMyEventsBtn"
android:layout_width="match_parent"
android:layout_height="#dimen/null_height"
android:layout_marginTop="#dimen/button_margin_vertical"
android:layout_marginBottom="#dimen/button_margin_vertical"
android:layout_weight="1"
android:text="#string/my_events" />
<Button
android:id="#+id/activityMainMyContactsBtn"
android:layout_width="match_parent"
android:layout_height="#dimen/null_height"
android:layout_marginTop="#dimen/button_margin_vertical"
android:layout_marginBottom="#dimen/button_margin_vertical"
android:layout_weight="1"
android:text="#string/my_contacts" />
<Button
android:id="#+id/activityMainLastNotifBtn"
android:layout_width="match_parent"
android:layout_height="#dimen/null_height"
android:layout_marginTop="#dimen/button_margin_vertical"
android:layout_marginBottom="#dimen/button_margin_vertical"
android:layout_weight="1"
android:text="#string/last_notification" />
<TextView
android:id="#+id/activityMainCopyrightTv"
android:layout_width="match_parent"
android:layout_height="#dimen/null_height"
android:gravity="center"
android:layout_weight="0.5"
android:layout_margin="#dimen/tw_margin"
android:text="#string/copyright" />
</LinearLayout>
(Note : #dimen/null_height is 0dp)
My problem is that I want the image to scale with the size of the screen, but I don't want it pixelated : I have set a maximum height of 200px.
The following lines don't seem to work, because the image has no limit and totally ignores the maxHeight attribute.
android:layout_weight="1"
android:maxHeight="#dimen/img_maxHeight"
Actually it looks like this (example image) :
It works perfectly, but when I set maxHeight to 10px for example, nothing changes.
How can I achieve this ? I highly prefer to use a LinearLayout.
Thank you in advance.
Thanks to Evripidis Drakos for pointing me in the right direction. Just need a check to only set the max height if it's actually required.
public class MaxHeightImageView extends ImageView {
public static final int MAX_HEIGHT_NOT_SET = -1;
public static final int INDEX_MAX_HEIGHT = 0;
private static final int[] STYLE_ATTRIBUTE_ARRAY = {
android.R.attr.maxHeight,
};
private int myMaxHeight;
public MaxHeightImageView(Context context) {
super(context);
init(context, null);
}
public MaxHeightImageView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context, attrs);
}
public MaxHeightImageView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context, attrs);
}
#RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public MaxHeightImageView(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
init(context, attrs);
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int size = MeasureSpec.getSize(heightMeasureSpec);
if(MAX_HEIGHT_NOT_SET != myMaxHeight && size > myMaxHeight) {
heightMeasureSpec = MeasureSpec.makeMeasureSpec(myMaxHeight, MeasureSpec.AT_MOST);
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
private void init(Context context, AttributeSet attrs) {
if(context != null) {
TypedArray ta = context.obtainStyledAttributes(attrs,
STYLE_ATTRIBUTE_ARRAY);
myMaxHeight = ta.getDimensionPixelSize(INDEX_MAX_HEIGHT, 0);
} else {
myMaxHeight = MAX_HEIGHT_NOT_SET;
}
}
}
I dont think that you can combine layout_weight with maxHeight.
You could try subclassing ImageView to override the onMeasure method like so:
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
heightMeasureSpec = MeasureSpec.makeMeasureSpec(200, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
if u want to set exact height for your image u should use weightSum property with weight
edit:
for fixed height do not give weight for imageview just take parent layout for imageview then add weight for that linear layout(parent layout) and for imageview give height as wrap content and maxHeight. when u use weight with height="0dp" the content will capture the whole height so it will ignore maxHeight.
try this
<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"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:weightSum="5"
tools:context="iut.project.findmeapp.MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:gravity="center"
android:orientation="vertical">
<ImageView
android:id="#+id/activityMainAppLogoIv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:contentDescription="#string/quantity_hint"
android:maxHeight="200px"
android:src="#drawable/ic_launcher" />
</LinearLayout>
<Button
android:id="#+id/activityMainMyEventsBtn"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:text="my_events" />
<Button
android:id="#+id/activityMainMyContactsBtn"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:text="my_contacts" />
<Button
android:id="#+id/activityMainLastNotifBtn"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:text="last_notification" />
<TextView
android:id="#+id/activityMainCopyrightTv"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight=".5"
android:gravity="center"
android:text="copyright" />
</LinearLayout>