I'm building a graph which consists of 2 images: 1 background image and one image containing the actual data points. The data points image show be aligned at the top of the background image.
The layout looks like this:
<RelativeLayout
android:id="#+id/graphImageWrap"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/graphImageBackground"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:background="#android:color/transparent"
android:contentDescription="#string/stroom_grafiek"
/>
<ImageView
android:id="#+id/graphImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#id/graphImageBackground"
android:layout_centerHorizontal="true"
android:background="#android:color/transparent"
android:contentDescription="#string/stroom_grafiek"
/>
</RelativeLayout>
This works well on a HDPI device:
But on a MDPI device it doesn't align properly:
I hope someone can explain what the problem is.
You may want to use a FrameLayout instead, and make sure the images are the same size.
Related
I am using ImageButton in my custom bottom navigation. And I have set icons of 32*32 size as src to them.
here is xml
<ImageButton
android:id="#+id/bottom_nav_profile"
android:layout_width="match_parent"
android:layout_height="50sp"
android:layout_weight="1"
android:src="#drawable/btm_nav_user_act"
android:text="Profile"
android:adjustViewBounds="true"
android:scaleType="center"
android:background="#drawable/bottom_nav_bg"
android:textColor="#000"/>
When I view it on my phone they look pixelated. I'm fine them being smaller but I dont want them to be pixelated. How can I make adujustment so that they look sharper.
Here are the icons
It seems that your image is very small to begin with, you have 2 options:
Remove the hardcoded height (50dp), your original image may be smaller than this, forcing its height may be reducing its quality on certain devices.
Have the same drawable you're using but for different phone densities. I'm guessing you only have one version of your drawable image in the drawable folder, on certain phones with certain densities, this image may display badly (just as it may be displayed just fine on certain other phones).
Lets make custom Image Button with linear layout and imageview
<LinearLayout
android:id="#+id/id"
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="#drawable/btm_nav_user_act"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Profile"
android:textColor="#000"/>
</LinearLayout>
Now use linear layout as a button.
that is my problem in relative-layout:
i have some image views that some part of each imageview is out of
display with negative margin.
i design this layout in a display dimension that shown in left side
and that is OK.
but in other display demensions some parts of views that i dont want
to be shown will be shown [like right image]. (or in smaller
displays some parts not shown).
so. i want just wanted box of layout will be visible in different
display sizes and be scaled according to display dimensions.
Sorry i know the problem is involved ;)
i need just visible part of layout scaled in various display sizes, also want views be separate to animate them.
that is one arrows sample code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="4000dp"
android:layout_height="300dp"
android:rotation="15"
android:src="#drawable/rectangle"
android:layout_row="0"
android:layout_column="0"
android:id="#+id/img_rct_header"
android:layout_marginBottom="108dp"
android:layout_alignParentLeft="false"
android:layout_alignParentStart="false"
android:layout_marginLeft="-100dp"
android:layout_marginTop="-160dp"
android:layout_marginRight="-120dp"
android:clipChildren="false"
android:scaleType="fitXY" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="135dp"
android:rotation="195"
android:src="#drawable/arrow_tall"
android:id="#+id/img_arw_in_sore"
android:scaleType="fitXY"
android:layout_marginTop="815dp"
android:clipChildren="false"
android:layout_marginRight="-8450dp"
android:layout_marginLeft="25dp"
android:visibility="gone" />
<ImageView
android:layout_width="500dp"
android:layout_height="150dp"
android:rotation="195"
android:src="#drawable/arrow_svg"
android:id="#+id/img_arw_in_tafsir"
android:scaleType="fitXY"
android:layout_marginBottom="-50dp"
android:layout_alignParentLeft="false"
android:layout_alignParentStart="false"
android:layout_marginLeft="161dp"
android:layout_marginTop="360dp"
android:layout_marginRight="-1150dp"
android:clipChildren="false"/>
<ImageView
android:layout_width="500dp"
android:layout_height="150dp"
android:rotation="195"
android:src="#drawable/arrow_svg"
android:scaleType="fitXY"
android:id="#+id/img_arw_out_tafsir"
android:layout_marginBottom="0dp"
android:layout_alignParentLeft="false"
android:layout_alignParentStart="false"
android:layout_marginLeft="-272dp"
android:layout_marginTop="240dp"
android:layout_marginRight="55dp"
android:clipChildren="false"/>
<ImageView
android:layout_width="4000dp"
android:layout_height="320dp"
android:rotation="15"
android:src="#drawable/rectangle"
android:layout_row="0"
android:layout_column="0"
android:id="#+id/img_rct_footer"
android:layout_marginBottom="-800dp"
android:layout_alignParentLeft="false"
android:layout_alignParentStart="false"
android:layout_marginLeft="-100dp"
android:layout_marginTop="550dp"
android:layout_marginRight="-120dp"
android:clipChildren="false"
android:scaleType="fitXY" />
</RelativeLayout>
thanks for your help ;)
Your layout is pretty complex. If all you want is to have this as a background that will look the same in different screen sizes, I'd suggest that you draw that background separately, save it as a high quality png, and then put it in one ImageView, without all the hassle of margins and rotation.
You must set the background of layout to that picture in order not to show it in dp.
The dp size is like the pixel of screen and its getting smaller and bigger in other devices try using the value match_parent instead of 4000dp
The best way is to use apps like picsart or picsay. Just put all the pictures in one picture edit the picture then make that the background of the whole layout with these values
layout_width="match_parent"
layout_height="match_parent"
but if you want to animate them you must add the layout to another layout
and give them layout_weight
I am trying to create a sort of progress bar for my Android app, however, I would like it to be an image moving from right to left. The image itself needs to preserve its original size.
Basically, what I am looking for is this (don't have enough rep to post image):
http://postimg.org/image/5e7w5vd7h/
The problem is that the image, which is 2000px wide, will not load when run on my device (Sony Xperia S). If I use an image with width <= device width, it works.
I have tried using HorizontalScrollView and ScrollView inside a RelativeLayout, as well as setting scaleType to center, centerCrop, fitXY and all the others, adjustViewBounds true/false etc., basically every combination there is.
First and foremost, I would just like the image to appear on my device - the animation in itself is not prioritized right now, but I am thinking of a solution where I increment the ImageView's paddingRight regularly.
Below is a snippet of my XML thus far:
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<HorizontalScrollView
android:layout_width="200dp"
android:layout_height="wrap_content"
android:id="#+id/horizontalScrollView"
android:layout_marginLeft="12.5dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView"
android:src="#drawable/rolling_bar"
android:scaleType="center" />
</HorizontalScrollView>
<TextView
android:id="#+id/countdown_time_text"
android:text="01:22:58"
android:textColor="#color/countdown_color"
android:layout_marginTop="3dp"
android:textStyle="bold"
android:textSize="28sp"
android:typeface="normal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_gravity="right"
android:layout_marginLeft="10dp" />
I apologize for any syntactical / semantic errors, I am quite new to Android. Thanks in advance!
I'm novice in android development and still can't understand fully how sizing works with different layouts. I want to place a preview of the book into this template:
I've tried to implement it using FrameLayout. The idea is that the center of preview image will be exactly where the center of the png background is. Here is the code:
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight=".5" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/book_frame" />
<ImageView
android:id="#+id/previewImage"
android:layout_width="83dp"
android:layout_height="83dp"
android:layout_gravity="center_vertical|center_horizontal"
android:src="#drawable/abs__ab_bottom_solid_dark_holo" />
</FrameLayout>
The result in layout builder look exactly like I want it to be:
On real phone it is different:
I think on other resolutions it will also differ from both variants. So my question is how to synchronize these images so after any resizing and distortions the preview will fit the cover correctly?
Possible solution would be to remove border from image and place it on previewImage instead. But there are several similar usecases in application where the border can't be removed, so I'd like to find out a universal solution for all of them.
You have your answer in your question.
What happening in your case image size matter for different screen resolution.
Hard-coded things always gives weird result in your case
android:layout_width="83dp"
android:layout_height="83dp" this piece of code.
Check this link this will guide you to manage drawables for different screens.
and here is another link
So the suitable solution for me was to separate border of inner image into its own ImageView, insert it into layout over the photo and add 1dp padding to the photo.
The layout become like this:
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight=".5" >
<ImageView
android:id="#+id/bookFrame"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal"
android:src="#drawable/book_frame" />
<ImageView
android:id="#+id/previewImage"
android:layout_width="83dp"
android:layout_height="83dp"
android:layout_gravity="center_vertical|center_horizontal"
android:padding="1dp"
android:scaleType="centerCrop"
android:src="#drawable/abs__ab_bottom_solid_dark_holo" />
<ImageView
android:id="#+id/previewBorder"
android:layout_width="83dp"
android:layout_height="83dp"
android:layout_gravity="center_vertical|center_horizontal"
android:src="#drawable/preview_border" />
</FrameLayout>
im sorry this is a noob question but i suck at layouting. How would i make a layout that positions the flashlight_button so it would preserve the ratio between imageviews on top and bottom.
It looks okay on nexus s (800x480), thats what i want
...image ...
but obviously when i switch to galaxy nexus (1280 x 720), it moves the middle button a bit to the top, like this (so it doesnt preserve the ratio between top and bottom margins as designed on nexus s)
...image...
The layout is here:
<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/background"
android:padding="20dp" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="50dp"
android:contentDescription="#string/application_logo_description"
android:src="#drawable/mylight" />
<ImageButton
android:id="#+id/settings_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="#null"
android:contentDescription="#string/settings_button_description"
android:src="#drawable/settings_button" />
<ImageButton
android:id="#+id/flashlight_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/imageView1"
android:layout_centerHorizontal="true"
android:background="#null"
android:contentDescription="#string/flashlight_button_description"
android:src="#drawable/flashlight_button_selector" />
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/ad_button"
android:layout_centerHorizontal="true"
android:contentDescription="#string/powered_by_description"
android:src="#drawable/powered_by" />
<ImageButton
android:id="#+id/ad_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:background="#null"
android:contentDescription="#string/ad_button_description"
android:src="#drawable/freeml" />
so it just anchors the top and bottom imageviews to parent edges, and the middle button is just pushed down using layout_maginBottom. I am providing scaled images for different densities and obviously density pixels to express size, so as it seems it just not enough on a bigger screen.
Whats the correct way to do this? Different .xml files or .. ?
//Sorry i cant still post images, hope you can imagine it.
Have you considered placing your flashlight image according to the parent's center?
So for now you are pushing flashlight image down (according to the top image position). Would it be more accurate to make flashlight image center-aligned and give it some bottom margin (to push it a bit higher according to your design).