问题
I have this xml file.I can't understand why my second linearlayout which contains editText and callButton isn't looking right. It looks like this (the line with the part picture of phone) :
I have the layout_weights set to 1 in each of these views, editText and callButton, so the phone image should take up half the screen, right? Here's my code. I would like both views to take up the same width - and the editText shouldn't stretch when text is entered, as is currently happening. Thanks for any help.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical"
android:paddingBottom="0dp"
android:paddingLeft="0dp"
android:paddingRight="0dp"
android:paddingTop="0dp"
tools:context=".MainActivity">
<ListView
android:id="@+id/ListView_2"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:layout_weight="1">
</ListView>
<LinearLayout
android:id="@+id/LinearLayout2"
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="horizontal"
>
<!--android:adjustViewBounds="true"-->
<!-- we want the text to begin in the centre of the edittext view
that's what gravity does-->
<EditText
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/editText"
android:inputType="phone"
android:gravity="center"
android:background="#d9d9d9"
android:layout_weight="1"
/>
<ImageButton
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/callButton"
android:src="@drawable/call"
android:clickable="true"
android:onClick="softkeyboardButton"
android:background="#ffa62b"
android:layout_weight="1"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="horizontal" >
<CheckBox
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:background="#ffa500"
android:text="New CheckBox"
android:id="@+id/checkBox"
android:layout_weight="4"
/>
<ImageButton
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:id="@+id/imageButton"
android:src="@drawable/softkeyboard"
android:clickable="true"
android:onClick="softkeyboardButton"
android:layout_gravity="center_horizontal"
android:layout_weight="1"
android:background="@drawable/buttonstates"
/>
<View android:layout_height="fill_parent"
android:layout_width="2px"
android:background="#90909090"/>
<ImageButton
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:id="@+id/imageButton2"
android:src="@drawable/settingsicon"
android:background="@drawable/buttonstates"
android:layout_gravity="center_horizontal"
android:layout_weight="1" />
</LinearLayout>
</LinearLayout>
回答1:
Change your EditText and Call button with layout_width to "0dp" -
<EditText
android:layout_width="0dp"
android:layout_height="match_parent"
android:id="@+id/editText"
android:inputType="phone"
android:gravity="center"
android:background="#d9d9d9"
android:layout_weight="1"
/>
<ImageButton
android:layout_width="0dp"
android:layout_height="match_parent"
android:id="@+id/callButton"
android:src="@drawable/call"
android:clickable="true"
android:onClick="softkeyboardButton"
android:background="#ffa62b"
android:layout_weight="1"
/>
回答2:
Try setting the layout_width of the EditText and the ImageButton to 0dp. I also recommend you to put the attribute android:scaleType="fitCenter" in the ImageButton so that the image fits inside the button and it doesn't look bigger like in the screenshot you provided.
Here is the XML file:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical"
android:paddingBottom="0dp"
android:paddingLeft="0dp"
android:paddingRight="0dp"
android:paddingTop="0dp"
tools:context=".MainActivity">
<ListView
android:id="@+id/ListView_2"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:layout_weight="1">
</ListView>
<LinearLayout
android:id="@+id/LinearLayout2"
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="horizontal"
>
<!--android:adjustViewBounds="true"-->
<!-- we want the text to begin in the centre of the edittext view
that's what gravity does-->
<EditText
android:layout_width="0dp"
android:layout_height="match_parent"
android:id="@+id/editText"
android:inputType="phone"
android:gravity="center"
android:hint="Edit Text"
android:background="#d9d9d9"
android:layout_weight="1"
/>
<ImageButton
android:layout_width="0dp"
android:layout_height="match_parent"
android:id="@+id/callButton"
android:src="@android:drawable/sym_call_incoming"
android:clickable="true"
android:scaleType="fitCenter"
android:onClick="softkeyboardButton"
android:background="#ffa62b"
android:layout_weight="1"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="horizontal" >
<CheckBox
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:background="#ffa500"
android:text="New CheckBox"
android:id="@+id/checkBox"
android:layout_weight="4"
/>
<ImageButton
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:id="@+id/imageButton"
android:src="@android:drawable/ic_menu_gallery"
android:clickable="true"
android:onClick="softkeyboardButton"
android:layout_gravity="center_horizontal"
android:layout_weight="1"
android:background="@android:drawable/ic_menu_gallery"
/>
<View android:layout_height="fill_parent"
android:layout_width="2px"
android:background="#90909090"/>
<ImageButton
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:id="@+id/imageButton2"
android:src="@android:drawable/ic_menu_set_as"
android:background="@android:drawable/ic_menu_gallery"
android:layout_gravity="center_horizontal"
android:layout_weight="1" />
</LinearLayout>
</LinearLayout>
And this is how it looks:
I hope it helps!
回答3:
For layout_weight to work, you should set either the layout_height or layout_weight to be 0dp on the widgets with weight.
From the looks of things I think you should spend some more time looking into how layout_weight works exactly
https://developer.android.com/guide/topics/ui/layout/linear.html#Weight
来源：https://stackoverflow.com/questions/36023338/why-is-my-layout-weight-not-working