问题
I have an activity designed to get customer information. First line gets name, 2nd line street address, third line is city, state and zip. I can achieve what I want using a RelativeLayout and by using android:layout_below and android:layout_toRightOf, but then i have to specifically indicate a width for my views. That width may look odd as the user reorients or switches between older and newer versions of android where everything is sized differently. I want to utilize the weight feature of a LinearLayout, but everything just comes up all on one line. How do I insert a line break to create rows of views within a LinearLayout?
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="@+id/custLabel"
android:layout_height="wrap_content"
android:layout_weight=".25"
android:layout_width="0dip"
android:text="Name"/>
<EditText
android:id="@+id/customer"
android:layout_height="wrap_content"
android:layout_weight=".75"
android:layout_width="0dip"/>
<TextView
android:id="@+id/addressLabel"
android:layout_height="wrap_content"
android:layout_weight=".25"
android:layout_width="0dip"
android:text="Address"/>
<EditText
android:id="@+id/address"
android:layout_height="wrap_content"
android:layout_weight=".75"
android:layout_width="0dip"/>
<TextView
android:id="@+id/cityLabel"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:layout_width="0dip"
android:text="City"/>
<EditText
android:id="@+id/city"
android:layout_height="wrap_content"
android:layout_weight=".25"
android:layout_width="0dip"/>
<TextView
android:id="@+id/stateLabel"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:layout_width="0dip"
android:text="State"/>
<EditText
android:id="@+id/state"
android:layout_height="wrap_content"
android:layout_weight=".20"
android:layout_width="0dip"/>
<TextView
android:id="@+id/zipLabel"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:layout_width="0dip"
android:text="Zip"/>
<EditText
android:id="@+id/zip"
android:layout_height="wrap_content"
android:layout_weight=".25"
android:layout_width="0dip"/>
</LinearLayout>
回答1:
You must use nested LinearLayout's to do this. I think something like this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/custLabel"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".25"
android:text="Name" />
<EditText
android:id="@+id/customer"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".75" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/addressLabel"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".25"
android:text="Address" />
<EditText
android:id="@+id/address"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".75" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/cityLabel"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:text="City" />
<EditText
android:id="@+id/city"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".25" />
<TextView
android:id="@+id/stateLabel"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:text="State" />
<EditText
android:id="@+id/state"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".20" />
<TextView
android:id="@+id/zipLabel"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:text="Zip" />
<EditText
android:id="@+id/zip"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight=".20" />
</LinearLayout>
</LinearLayout>
should work.
回答2:
The property of a Linear view is, it will arrange the child views in Horizontal or Vertical manner. You cannot order each TextView and Edit text in a alternate lines. For that you have to use extra layouts like table layout or even another linear layout inside the current Linear layout.
Following is the example:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TableLayout
android:id="@+id/tableLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight=".25" >
<TableRow
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/custLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".25"
android:text="Name" />
<EditText
android:id="@+id/customer"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".75" >
<requestFocus />
</EditText>
</TableRow>
<TableRow
android:id="@+id/tableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/addressLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".25"
android:text="Address" />
<EditText
android:id="@+id/address"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".75" />
</TableRow>
<TableRow
android:id="@+id/tableRow3"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/cityLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:text="City" />
<EditText
android:id="@+id/city"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".25" />
</TableRow>
<TableRow
android:id="@+id/TableRow4"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/stateLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:text="State" />
<EditText
android:id="@+id/state"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".20" />
</TableRow>
<TableRow
android:id="@+id/tableRow5"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/zipLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:text="Zip" />
<EditText
android:id="@+id/zip"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".25" />
</TableRow>
</TableLayout>
回答3:
What you want to do is not possible with a single LinearLayout. You should check out TableLayout.
来源：https://stackoverflow.com/questions/9161522/android-linearlayout-line-breaks-in-xml