Below is a TextView followed by an ImageView contained in RelativeLayout. I'm trying to get the bottom of the image to align with the baseline of the text. When I use alignBaseline for the image,reference the TextView, it is the top of the image that aligns with the baseline of the text instead of the bottom. How can I fix this?
<TextView
android:id="@+id/month"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:text="feb"
android:textSize="60px"
android:typeface="serif"
/>
<ImageView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:paddingLeft="15px"
android:layout_toRightOf="@id/month"
android:layout_alignBaseline="@id/month"
android:src="@drawable/minicalimage"
android:id="@+id/calimage"
/>
Since API11 you can simply use
android:baselineAlignBottom="true"
Prior to API11 you can overwrite getBaseLine()
and return image height.
You should use both following lines in your ImageView to align bottom of Image view to bottom of nearby TextView:
android:layout_alignBaseline="@+id/txtview"
android:baselineAlignBottom="true"
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/txtview"
... />
<ImageView
...
android:layout_toRightOf="@+id/txtview"
android:layout_alignBaseline="@+id/txtview"
android:baselineAlignBottom="true"
...
/>
</RelativeLayout>
I was able to accomplish what I wanted to do. I did not utilize alignBaseline, just fixed the problem with padding and resizing the image. Some of the issues I was having arose from having an image too big and it filling up the space undesirably. The code I used to achieve what I wanted is below:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="25px"
android:paddingTop="30px"
android:id="@+id/LinearLayout1">
<TextView
android:id="@+id/month"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="feb"
android:textSize="60px"
android:typeface="serif"
/>
<ImageView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_toRightOf="@id/month"
android:layout_alignBottom="@id/month"
android:paddingBottom="12px"
android:src="@drawable/minicalimage"
android:id="@+id/calimage"
/>
<TextView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="2011"
android:id="@+id/year"
android:layout_toRightOf="@id/calimage"
android:layout_alignBaseline="@id/month"
android:typeface="serif"
android:textSize="40px"
/>
</RelativeLayout>
This was the result:
I stumbled upon a similar issue, and solved it just by avoiding layout_alignBaseline
altogether, relying on layout_alignBottom
instead, which is available since API 1.
i used a text view instead of an image view and used the new text view's drawable to set the image and it worked:
<TextView
android:id="@+id/month"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:text="feb"
android:textSize="60px"
android:typeface="serif"
/>
<TextView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:paddingLeft="15px"
android:layout_toRightOf="@id/month"
android:layout_alignBaseline="@id/month"
android:drawableRight="@drawable/minicalimage"
android:id="@+id/calimage"
/>
/**
* Set whether to set the baseline of this view to the bottom of the view.
* Setting this value overrides any calls to setBaseline.
*
* @param aligned If true, the image view will be baseline aligned with
* based on its bottom edge.
*
* @attr ref android.R.styleable#ImageView_baselineAlignBottom
*/
public void setBaselineAlignBottom(boolean aligned) {
if (mBaselineAlignBottom != aligned) {
mBaselineAlignBottom = aligned;
requestLayout();
}
}
You want to use the android:layout_alignBottom attribute to align the ImageView with the baseline of another View.
In the sample below I aligned the ImageView to another TextView. I included the code for the ImageView, and not the TextView. In order to align to the TextView you'll just need to include the id of the TextView.
Adjusting the margin or padding will result in the Views being misaligned if the user changes the text size on their device.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="?attr/selectableItemBackground">
<!-- additional code here -->
<ImageView
android:id="@+id/message_time_chevron_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@id/replies_username_id"
android:layout_alignParentRight="true"
android:clickable="true"
android:src="@drawable/ic_chevron_right"/>
<!-- additional code here -->
</RelativeLayout>
来源:https://stackoverflow.com/questions/5102532/android-using-alignbaseline-for-an-image-following-text