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!
Related
Here is a small gif of my current situation. I guess many images are better than many words.
As you notice, when I switch for the smaller image, the seekbar size changes. I know this is because of the seekbar's width being set to match_parentand the image's width to wrap_content.
What I don't know is how to overcome this problem, as I can't really hardcode width value otherwise it'll probably get messed up on various screensizes.
So my question is :
Is there a way to prevent this behaviour that is clean? I could simply get the width at runtime and set it as minimal width and it would probably work (heck, I could try it now to make sure), but that is just a horrible thing to do code-wise.
Ideally, I'm guessing there is a way to prevent this in the .xml file, but I couldn't figure it out, playing with the different paddings, margins, scaling and layout sizes.
Here is what you're looking at :
<RelativeLayout
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp">
<ImageButton
android:background="#android:color/transparent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="center"
android:id="#+id/playButton"
android:layout_alignParentLeft="true"
android:layout_marginLeft="30dp"
android:layout_centerVertical="true"
android:src="#drawable/play"
android:onClick="PlayButtonClicked" />
<SeekBar
android:max="100"
android:id="#+id/volumeSeekBar"
android:layout_centerVertical="true"
android:layout_margin="15dp"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:layout_toRightOf="#+id/playButton"
android:layout_toLeftOf="#+id/muteButton" />
<ImageButton
android:background="#android:color/transparent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="center"
android:id="#+id/muteButton"
android:layout_alignParentRight="true"
android:layout_marginRight="30dp"
android:layout_centerVertical="true"
android:onClick="MuteButtonClicked"
android:src="#drawable/sound" />
</RelativeLayout>
Ideally it would be nice for the volume icons to be of the same size.
If that is not an option, try replacing android:layout_toLeftOf="#+id/muteButton" with android:layout_marginRight="15dp+30dp+largest_icon_width_in_dp"
where 15dp is your seekbar right margin, 30dp is the mute button right margin.
The third option would be to set a fixed width for the mute button equal to the width of the largest image.
Starting in Android development, i wonder how to do this layout in XML (using Android Studio), targeting 4.x Android devices.
How to precisely position 4 buttons on a bitmap background? Should work despite bitmap scaling.
Scenario:
My application main screen should consist of 4 buttons placed on a bitmap. Button positioning should always look exactly like this, and the whole should scale up/down (proportional width/height) to match the screen space. A layout sketch:
Tried solutions:
4 Buttons in a GridLayout with background:
<GridLayout
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_centerHorizontal="true"
android:orientation="horizontal"
android:columnCount="2"
android:rowCount="2">
<Button android:id="#+id/button1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Button1" />
<Button android:id="#+id/button2"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Button2" />
<Button android:id="#+id/button3"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Button3" />
<Button android:id="#+id/button4"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Button4" />
</GridLayout>
4 Buttons in a GridLayout, above a ImageView in a RelativeLayout.
One ImageView with onTouch() that checks a colorcoded bitmap. (source here)
The only solution that worked ok regarding scaling is the onTouch(), but i'd rather keep using actual buttons so keyboard navigation and press/hover effects work as expected.
How is it possible to position buttons, to have them always match scale with the bitmap?
Thanks for any insights.
Due to the title this question looks like a dupe but i havent found any that demonstrate how this can be accomplished.
I had this problem and I mathed my way around it. It's pretty horrible but let's say that your background image is 500x500px and on an image like that your button is supposed to be at (100, 100) with a size of 50x50px relative to that background image. When you lay it out you have to get the size of the current device, let's say it's 700x800px in size (these devices most likely do not exist). In this case you would have to set the width of your button to (700/500)*50px and the height would be (800/500)*50px . The position of the button would then be at (700/500)*100 and (800/500)*100 .
You are pretty much scaling the button with the background image. Hopefully I'm making myself clear :)
you can try this, hope will help
<ImageButton
android:id="#+id/notificationform_btn_Approve"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:src="#drawable/btn_approve"
android:onClick="btnApprove_Click" />
and take a look here
and why don't you use ImageButton instead:
<ImageButton android:src="#drawable/greybutton"
android:scaleType="fitCenter" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
then you can adjust the scaling with the scaleType attribute. The only downside is you can't set any text.
good luck
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).
I'm struggling to finish my Android app, but I'm having some problems with the UI. My problem is very basic, I've developed the UI using the default AVD when using AVD manager in Eclipse (HVGA, with a density of 160 dpi), and when I execute the app I see it as I designed, but if I change the target device (i.e. WVGA or QVGA) all the components in the layout are in a different position than the original. As far as I saw in the recommendations for support multiple screens, I should not use AbsoluteLayouts, in fact I'm using RelativeLayouts, I'm not using "px" for the dimensions (or positions), just "wrap_content" or "fill_parent", and in case I need an specific position I'm using "dp" (tested too with "sp"), also I've scaled the images for ldpi (0.75x), and still have the issue (not a particular screen, the hole app) ...so, my question is, is there any other UI tip that I'm missing?.
I'm putting a sample code and the results that I observe when testing it with a HVGA AVD (bigger image) and with a QVGA AVD. As you can see, the position of the yellow/green squares is different, as well as the size of the last row of images.
PS: I'm using a TabLayout also, so the background is loaded through code (tabHost.setBackgroundDrawable(getResources().getDrawable(R.drawable.background1)))
Any help will be appreciated.
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:id="#+id/row1"
android:layout_centerHorizontal="true"
android:layout_marginTop="140dp"
>
<ImageView
android:id="#+id/btn1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:clickable="true"
android:onClick="method1"
android:src="#drawable/button1"
/>
<ImageView
android:id="#+id/btn2"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:clickable="true"
android:onClick="method1"
android:src="#drawable/button2"
/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="#id/row1"
android:layout_centerHorizontal="true"
>
<ImageView
android:id="#+id/btn3"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:clickable="true"
android:onClick="method1"
android:src="#drawable/button3"
/>
<ImageView
android:id="#+id/btn4"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:clickable="true"
android:onClick="method1"
android:src="#drawable/button4"
/>
</LinearLayout>
</RelativeLayout>
Your layout looks fine to me, except for having that white box title on the background as it will make more difficult to put things in their position. Also, RelativeLayout does not have orientation but that is ignored.
In the bigger screenshot it looks like there is more space between the white box and the top of the screen. What it does not make sense to me is the different size in the second row. Are you 100% sure you are loading the correct images in the smaller screenshot?
You need to create different layout for diff. resolution i.e for large screen use layout-large folder..
I hope this link help to you.
Did you follow the steps given on the developer site to make ur app to support multiple screens?