I'm writing an app that will graph a line. The user enters two points and the app draws and displays a line. The math I can figure out, but I am completely confused on how to use a canvas. I'm just using a basic linear layout with a couple edit texts and a button. Below that I need to display the canvas. All I am trying to do now is add that canvas below my edit texts and then draw a vertical line on it.
View 1 Replies
I have following in xml
I wanna put the second linear layout at the bottom of the screen.
I have set the property of second Relative layout to bottom but still not showing at bottom..
code:...................
I have defined the layout which you can see at the end of this message. I do not understand, why the button is not displayed. If I move the button to the top that the rendering works.
CODE:......................
I have the following code in my layout.xml.
code:............
In the eclipse Plugin layout creator, the EditText and button are shown properly. (see the below screenshot)
But on the device and emulator, the button is not hidden. (see the below screenshot)
why the button is getting hidden in the device?
I've noticed a strange thing with a TableRow.
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:stretchColumns="0">
<TableRow
android:background="#9932cc"
android:minHeight="40px"
android:orientation="horizontal">...........
This code doesn't work properly as TextView text1 doesn't wrap it just stretches beyond the screen. I've managed to get it working by embedding this LinearLayout into RelativeLayout but it seems to be the least elegant solution plus I don't understand what's wrong with the code above...
I've a little problem with alignment in Linear Layout.I'm trying to have the frist two elements with left alignment, and the third at the center of the screen.Here is my code (cleaned from id, text, src) :
<?xml version="1.0" encoding="utf-8"?>
<Linear Layout xmlns:android="http://schemas.android.com/apk/res/android" Here is what I'm trying to do, pink and yellow on left, red in the center pink = image view
yellow = 1er texview
red = 2ème textview. Any idea ?
I am facing problem to customize Linear Layout. My xml is as follows:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff"
>..............................................
I want to set the width of @+id/LinearLayout_LeftPanel layout one third of the screen width pro-grammatically on the onCreate().
I want to set a border ( thick line) to the linear layout. is it possible then how can i set it.
View 2 Replies View RelatedI need to add a scroll for linear layout.I use the following code to create the linear layout.But it's not working LinearLayout llay=new LinearLayout(context); llay.setVerticalScrollBarEnabled(true); If i use the following lines i will get the Scrollbar. ScrollView sc=new ScrollView(context); sc.addView(llay); But I need to add scroll for the Linear layout without using ScrollView.
View 1 Replies View RelatedI have a linear layout like this:
<LinearLayout android:id="@+id/header" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center_vertical" <ImageView android:id="@+id/icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="top" android:src="@drawable/img1" /> <TextView android:id="@+id/atitle" android:singleLine="true" android:layout_width="fill_parent" android:layout_height="wrap_content" /> </LinearLayout>
I need to add a button to the above layout problematically which is right justified? I need to do that in code instead of layout xml file (this is because i can't modify that layout xml file). Here is what I am doing: LinearLayout header = (LinearLayout) findViewById(R.id.header); Button buyButton = new Button(this); buyButton.setText(R.string.buy_ringtone); buyButton.setLayoutParams(new LayoutParams( ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)); header.addView(buyButton);
But the button does not appear. Can you please tell me how can i achieve that?
For a rather crazy reason I am trying to pass a linear Layout from one activity to another. Should I use an intent extra for this? What would be the right way to create a Linear Layout in one activity and then spawn a new activity using that linear Layout.
View 8 Replies View RelatedThe button doesn't show in this layout(code below),image and textview are shown. I tried using relative layout but that doesn't help either.
I'm testing it on 1.5 emulator.
CODE:..........................
Is there a way to do a linear layout with multiple lines? I want to lay out a variable set of buttons with variable labels, so I'd like to use a layout that works as a simple horizontal LinearLayout, but with multiple lines, so the buttons spill into a second (or third) line if they don't fit on the first one.
View 3 Replies View RelatedI've got a horizontal Linear Layout that contains a variable number of child Linear Layouts. Right now, the children will just run off the screen if there are too many of them. How would I make the parent layout wrap the children on multiple lines? If this is not possible, should I be using a different layout as the parent?
View 3 Replies View RelatedThe following code incorrectly (in my view) places the text left- justified, and the button is in the center, horizontally. Why is this?
Code...
I want to add a full layout on click of button,
View 3 Replies View RelatedI have this really annoying problem:In my widget, i would like to change the background by code. I noticed on the Google doc than I can easily change the background of an Imageview: remoteViews.setImageViewResource (R.id.my_iv, R.drawable.my_bg);Ok, too easy, i want to change now the Linear layout.. What I read about the remoteview id that I can change a Bitmap, Int, Bool, String, etc. but not a drawable. So i guess i cannot use:remoteViews. set Bitmap (R.id.my_ll, "setBackgroundDrawable",BitmapFactory.decodeResource(context.get Resources(), R.drawablemy_bg));I am totally disapointed and tried a last idea: views.setInt (R.id. my_ ll,"setBackground Resource" ,R.drawable.my_bg);But The logcat told me: android. widget. Remote Views $Action Exception: view: android. widget.LinearLayout can't use method with RemoteViews:setBackgroundResource(int)I am totally lost and I really don't know what to do.
View 1 Replies View RelatedI have a custom layout that draws a transparent rounded rectangle beneath its children. The problem is when I try to add it to my xml file, it doesn't show up. Also, when I try to add parameters to it (i.e. android:layout_width) the popup shows that none of them are available. The same thing happens to any child views I add. public class RoundRectLayout extends LinearLayout
{ private RectF shape;public RoundRectLayout(Context context)
{super(context);
LayoutInflater layoutInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
layoutInflater.inflate(R.layout.settings, this);
shape = new RectF();
}public RoundRectLayout(Context context, AttributeSet attrs)
{ super(context, attrs);
LayoutInflater layoutInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
layoutInflater.inflate(R.layout.settings, this);
shape = new RectF();
} @Override
protected void onSizeChanged(int w, int h, int oldw, int oldh)
{shape = new RectF(0, 0, w - 5, h - 5);
super.onSizeChanged(w, h, oldw, oldh);
}@Override
protected void dispatchDraw(Canvas canvas)
Paint temp = new Paint();
temp.setAlpha(125);
canvas.drawRoundRect(shape, 10f, 10f, temp);
super.dispatchDraw(canvas);
RelativeLayout is more flexible, and can do what AbsoluteLayout can do and more.
http://developer.android.com/reference/android/widget/RelativeLayout....
To place views on top of one another you can also use FrameLayout, positioning these frame layouts in their parent layout:
http://developer.android.com/reference/android/widget/FrameLayout.html
18.08.2010 19:11, ericmahlon пишет:
> I have an image that will have 5 different areas that will be "clickable." Each clickable area will be invisible and play a different sound. I was told not to use an absolute layout, and use a linear layout instead. However, I am now having an issue with placing the buttons over the picture. The linear layout does not allow me to position them correctly where they need to go. How do I properly position a button so that it is over a certain part of the image?
is it possible to make an entire linear layout scrollable when it needs to be? (when all of the elements in the layout don't fit on the main screen)?I know it is doable with views, etc.but is there a way to incorporate everything on the layout to be scrollable at the same time?Maybe scrollable is not the right term. basically - if one of the elements (a button in this case) doesn't entirely make it onto the main screen of the phone and I need to slide a finger down to access it if that makes sense.
View 2 Replies View RelatedHow can i use Scroll bar in my Linear layout view?
View 3 Replies View RelatedI have followed the example in for the gradient dividers: http://www.connorgarvey.com/blog/?p=34. I have tried to draw a horizontal line at the BOTTOM of my linear layout. Here is my linear layout file:
<LinearLayout android:id="@+id/test" android:layout_width="fill_parent"
android:layout_height="wrap_content>
<ImageView android:id="@+id/icon1"
android:layout_width="32dip"
android:layout_height="32dip"
And I did add <View
android:background="@drawable/black_white_gradient"
android:layout_width="fill_parent"
android:layout_height="1dp"
android:layout_above="@id/test"
But i don't see any line at the top of the LinearLayout. And when I go to Hierarchy View and see he View (for the hort separator), the getWidth() is 0 while getHeight() is 1. Can you please tell me what am I missing?
I am using a linear layout to display a pretty light initial screen. It has 1 button that is supposed to centre in the screen both horizontally and vertically. However no matter what I try to do the button will top align centre. I have included the XML below, can some one point me in the right direction?
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageButton android:id="@+id/btnFindMe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal"
android:background="@drawable/findme"></ImageButton>
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<EditText
android:id="@+string/urlText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="Enter Url Here"/>
<Button
android:id="@+string/go"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Go"/>
<WebView
android:id="@+string/webView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
</LinearLayout>
So with the above android layout, I am not able to make the editbox and button to be to the full width of the container. About 50 px from the left and the right are not filled.
Is it possible to get the width of a linear/relative layout, if the layout_width is set to fill_parent in the layout xml? For example, I have the following layout xml. Is it possible to find the width of the cameraSourceScreen?
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/CameraSourcesScreen"
><LinearLayout android:id="@+id/button_bar"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:background="@drawable/topbar"
android:orientation="horizontal"
android:gravity="center">.......
I am trying to add TextViews to my xml-defined layout in code. I have a xml-sheet, where a lot of Views are defined. But I have to add some views in code, so a create a LinearLayout in the xml-sheet:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:id="@+id/info"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
And in this layout, I like to add my TextView:......
I am using a linear layout to draw a scalable background in my app. I am then defining multiple imageviews inside the linear layout, all of which are PNGs containing a transparency layer. I am wanting to overlay these transparent imageviews on top of the background. My issue is that only the first defined imageview shows on top of the background, any subsequent imageviews do not appear.
CODE: Note that imgSen1 appears properly with transparency overlaid on the background. imgSen2 does not appear. If I define imgSen2 first, and imgSen1 second, imgSen2 then appears properly, as if only the first defined imageview can be seen. I would like to have multiple imageviews with transparency overlaying the background.
<LinearLayout
android:layout_width="627dp"
android:layout_height="436dp"[code]...
i know we can use XML to specify layout_weight.(refer to APIdemo LinearLayout9.java) but is there any method to specify it from code?
View 2 Replies View RelatedI have a Linear Layout, which only contains one button. I want this button to be centered vertically and aligned to the right. I tried many ways, but I couldn't make this button centered vertically. It is always aligned to the top. I also tried to put a button in Relative Layout, the button can not be centered vertically either. The XML is as below. Is there anything wrong with this layout? <?xml version="1.0" encoding="utf-8"?> <Linear Layout xmlns:android="http://schemas.android.com/apk/res/ android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="#E8E3E4"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="More" android:layout_gravity="right| center_vertical" /> </Linear Layout>
View 4 Replies View RelatedHow can I center ImageButton in the this Linear Layout
<Linear Layout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/main">
ImageButton