[英]How to add a textview below a listview?
I am tying to have a layout where I have a listview at the top of my screen, textview which is just below the listview and a button at the bottom of the screen. 我想拥有一种布局,其中在屏幕顶部具有一个列表视图,在列表视图下方具有一个文本视图,在屏幕底部具有一个按钮。
This is my main.xml 这是我的main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="@+id/mobile_list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
</ListView>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:text="HELLO WORLD THIS IS A DAMN TEXTVIEW"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="HELLO WORLD"/>
</LinearLayout>
</RelativeLayout>
This is my MainActivity.java 这是我的MainActivity.java
package com.example.suudupa.customtextviews;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class MainActivity extends AppCompatActivity {
String[] mobileArray = {"Android","IPhone","WindowsMobile","Blackberry","Android","IPhone","WindowsMobile","Blackberry","Android","IPhone","WindowsMobile","Blackberry",
"WebOS","Ubuntu","Windows7","Max OS X"};
// String[] mobileArray = {"Windows7","Max OS X"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayAdapter adapter = new ArrayAdapter<String>(this,
R.layout.activity_listview, mobileArray);
ListView listView = (ListView) findViewById(R.id.mobile_list);
listView.setAdapter(adapter);
}
}
And activity_listview.xml 和activity_listview.xml
<?xml version="1.0" encoding="utf-8"?>
<!-- Single List Item Design -->
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/label"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
android:textSize="16sp"
android:textStyle="bold" >
</TextView>
When I have a large number of items in my listview, this works perfectly however when I have a few items, the textview sticks to the top of button rather than sticking to bottom of listview. 当我的列表视图中有大量项目时,这非常理想,但是当我的项目很少时,textview会停留在按钮的顶部而不是底部。
Please help me out. 请帮帮我。
You can try to add another layout over your listview to keep listview full height. 您可以尝试在列表视图上添加其他布局,以使列表视图保持完整高度。
Something like this: 像这样:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical">
<ListView
android:id="@+id/mobile_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
</ListView>
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="HELLO WORLD THIS IS A DAMN TEXTVIEW"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="HELLO WORLD"/>
Try to use ConstraintLayout like below example 尝试使用ConstraintLayout,如下面的示例
<ListView
android:id="@+id/mobile_list"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/txtTest"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:paddingBottom="50dp"
android:text="HELLO WORLD THIS IS A DAMN TEXTVIEW"
app:layout_constraintTop_toBottomOf="@+id/mobile_list" />
<Button
android:id="@+id/btnText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="HELLO WORLD"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent" />
</android.support.constraint.ConstraintLayout>
This work fine for me: 这项工作对我来说很好:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="@+id/mobile_list"
android:layout_width="match_parent"
android:layout_height="0dp"
>
</ListView>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="HELLO WORLD THIS IS A DAMN TEXTVIEW"
android:layout_below="@+id/mobile_list"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="HELLO WORLD"
/>
</RelativeLayout>
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