Say I have an ImageButton. I want a textview on top of the imagebutton, and centered on it. How would I do this?
you could do it by wrapping both widgets in a FrameLayout
for example:
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageButton
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/image" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/text"
android:layout_gravity="center" />
</FrameLayout>
Use a regular Button, which extends TextView anyway. Then set the background to your image and use setText() to set your text. You can even add icons above, below and/or left & right of the text with the drawableLeft,drawableTop,etc attributes.
You Are overcomplicating your layout. Just add text to the button.
myImageButton.setText("text");
If you really do want to layer these views, you should use a RelativeLayout:
<RealtiveLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageButton
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/img"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/app_name"
android:layout_centerInParent="true"/>
</RelativeLayout>
Make a special note of the attribute layout_centerInParent . this is how the TextView is correctly centered.
Related
I have this layout, where I have text view and an icon next to it.
However, the text is dynamically changing, so sometime it will be too long which push the icon out of the screen.
I tried to add weight to the text but it makes the icon on the right side of the screen which I don't want, I just want it right after the text even if the text go to the next line.
There is my code:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/Text"
android:layout_marginLeft="25dp"
android:text="llllll"
/>
<android.support.v7.widget.AppCompatImageButton
android:id="#+id/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:background="#android:color/transparent"
android:src="#drawable/ic_arrow_drop_down_black_24dp" />
</LinearLayout>
any idea :(?
You can use ConstraintLayout to handle this.
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/text"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintHorizontal_bias="0"
app:layout_constraintHorizontal_chainStyle="packed"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="#+id/image"
app:layout_constraintWidth_default="wrap"/>
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintLeft_toRightOf="#+id/text"
app:layout_constraintRight_toRightOf="parent" />
</android.support.constraint.ConstraintLayout>
Just simply add one property line in textview "android:maxWidth" like below :
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/Text"
android:layout_marginLeft="25dp"
android:text="llllll"
android:maxWidth="100dp" //it can be your specific size
/>
<android.support.v7.widget.AppCompatImageButton
android:id="#+id/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:background="#android:color/transparent"
android:src="#drawable/ic_arrow_drop_down_black_24dp" />
</LinearLayout>
You could use <img> tags in the HTML
to know how to do that see this qution (is-it-possible-to-display-inline-images-from-html-in-an-android-textview)
Put the text view inside a relative layout with match parent as width and height wrap content.
Set text view to the same dimensions ie march parent as width and height as wrap content.
Have the image button in the same relative layout and use alignParentEnd as true. You'll see it always add the end of your text view.
If you choose to do this, set some maxEms and ellipsize end so that the text does not overlap the button. You'll get the value by testing it yourself, depends on the text size usually.
Since you want it as a button I'm suggesting this. If you want it just be an icon with no use, you should look into drawableEnd property of the text view.
in the below xml layout, i have two buttons at the same position and they will do their function based on the visibilty set. now i tried to place two textviews
below the buttons, i want the text views to be below both buttons so I used
android:layout_below="#id/actConnect2_btn_connect"
but at run time when the connect-button is visible the text view appears below it, and if pair-button is visible it overlap
how to display the textview below both buttons?
Note: i know that i can use android:layout:marginTop but i want to solve it without it
code:
<Button
android:id="#+id/actConnect2_btn_pair"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/actConnect2_tv_label_devClass"
android:layout_centerInParent="true"
android:text="#string/str_pair"/>
<Button
android:id="#+id/actConnect2_btn_connect"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/str_connect"
android:layout_below="#+id/actConnect2_tv_label_devClass"
android:layout_alignParentStart="true" />
<TextView
android:id="#+id/actConnect2_tv_label_uuids"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/actConnect2_btn_connect"
android:text="Service's UUID: ">
</TextView>
<TextView
android:id="#+id/actConnect2_tv_uuids"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/actConnect2_tv_label_uuids">
</TextView>
Put both buttons in a LinearLayout then put the textview below the LinearLayout
take both button in one layout
<RelativeLayout android:id="#+id/relativeButton"
android:layout_width="wrap_content"
android:layout_below="#id/actConnect2_tv_label_devClass"
android:layout_height="wrap_content">
<Button
android:id="#+id/actConnect2_btn_pair"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="#string/str_pair"/>
<Button
android:id="#+id/actConnect2_btn_connect"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/str_connect"
android:layout_alignParentStart="true" />
</RelativeLayout>
and use this for your textview
android:layout_below="#id/relativeButton"
You have to place the buttons in a Layout (any type and arrange them accordingly)
Assign an ID to that layout.
Place the textView below that layout ID.
I want to put png image over button i tried android:background but the png takes all the button what i want exactly is to use the logo png over button like this
the info logo is my png and "about" comes from the button text
u can use this:
android:drawableTop="#drawable/SomeIcon"
so then you get this:
<Button
android:id="#+id/damage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="about"
android:drawableTop="#android:drawable/ic_menu_info_details"/>
it works for me :)
You can use a FrameLayout. In a FrameLayout, the z-index is defined by the order in which the items are added, for example
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/button_text" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/my_drawable"
android:scaleType="fitCenter"/>
</FrameLayout>
In this instance, the ImageView would be drawn on top of the Button, along the bottom center of the Button.
You can check this thread
Basically, you can use:
<ImageButton
android:id="#+id/ImageButton01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/album_icon"
android:background="#drawable/round_button" />
As the thread says.
Take a RelativeLayout, place ImageView inside it. Now set onClickListener on RelativeLayout.
By this way you can create more complex buttons.
<RelativeLayout android:id="#+id/your_btn_id"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true" />
</RelativeLayout>
you can use
android:drawableTop
to put drawable at top of Button and use appropriate padding to make it position well.
<Buttton
android:layout_width="99dp"
android:layout_height="99dp"
android:background = "#drawable/bg" />
bg is your custom image.
I have two TextView in a LinearLayout, I want to align them one to the left (or center) and one to right in the same line. How to do this? I try to use gravity but they ignore it.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="horizontal">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="TextView" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:text="TextView" />
</LinearLayout>
The easiest way is to change your LinearLayout to a RelativeLayout.
You can use android:layout_alignParentRight="true" and android:layout_alignParentLeft="true". Or to center it use android:layout_centerInParent="true"
See here why gravity won't work
You are using gravity instead of layout_gravity which is what you would want. This post should help clarify the difference
The docs show you available properties.
android:gravity is used to set the gravity of content inside the view. However, in your case the width is wrap_content, hence the content has nowhere to go in the text views.
Use a RelativeLayout with layout_width as match_parent. Then use the android:layout_alignParentLeft="true" and android:layout_alignParentRight="true"with the textViews.
Use it with or without the android:gravity in the second textview and try .
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/textView1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:layout_weight="1" />
<TextView
android:id="#+id/textView2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:gravity="right"
android:layout_weight="1" />
</LinearLayout>
If LinearLayout is Vertical, you can put only an object per line.
You can use RelativeLayout, or else put in a line a LinearLayout Horizontal, that contains textviews
ex.
<LinearLayout vertical>
<LinearLayout horizontal>
<textview 1></>
<textview 2></>
</LinearLayout>
</LinearLayout>
I fixed all my issues with GridLayout...is the best thing bcos u don't need to align anithing to nothing...just put what u want into the matrix (row,column)...and this will allow you to visualize all the field in exactly wrap content of your datas also in landscape is perfect!
I placed a TextView on an ImageView in a FrameLayout. I've tried various combinations of android:background for the TextView but always get a see-through grey background on it. I'd like a transparent background. The android:background attribute seems to be ignored.
<HorizontalScrollView
android:id="#+id/categories_horizontal_scrollview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="25dip">
<LinearLayout
android:id="#+id/categories_linear_layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/photos_imageview"
android:scaleType="center"
android:src="#drawable/photos_ipad" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/photos_text"
android:layout_marginBottom="10dip"
android:layout_gravity="center_horizontal|bottom"
android:padding="3dip"
android:background="#00000000"
android:textColor="#ffffffff"
android:textSize="20dip"
/>
</FrameLayout>
.
.
Use this:
TextView tv;
tv.setBackgroundColor(0xXX??????);
Where XX - [00;FF] - indicator of trancparecy. ?????? - Some numbers (raw color)
Hope it helped)))
As Brayden pointed out, there was a problem in the layout. I ended up putting the ImageView and TextView into a FrameLayout as a single resource, then adding that dynamically where needed.
We use like this code for transparent background.
android:background="#android:color/transparent"