Programmitically添加项目从列表到TableLayout [英] Programmitically adding items from a list to a TableLayout
问题描述
我有一个Android项目我的工作。我是相当新Android开发,所以我有,我在创建表布局工作一个MainActivity.java文件中的一些code,但方式我的code是目前我只可以从列表中添加一个项目我可以在Activity.java类做些什么来改变这种做法,它会以编程方式添加我所有的麦当劳的对象太表。我能做些什么,以两行添加到MainActivity.java的看法?
I have an Android project I am working on. I am fairly new to Android Development so I have some code in a MainActivity.java file that I am working on Creating a Table Layout for but the way my code currently is I can only add one item from that list what can I do in the Activity.java class to change this so it will programmatically add all of my Mcdonalds objects too the Table. What can I do to add both rows to the view on MainActivity.java?
activity_main.xml中
Activity_Main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".ShelterActivity" >
<TableLayout android:id="@+id/TableLayout01" android:layout_width="fill_parent" android:layout_height="wrap_content" android:stretchColumns="0">
<TableRow
android:id="@+id/TableRow01"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Address"
android:width="250px"
android:textStyle="bold"></TextView>
<TextView
android:id="@+id/TextView02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Distance"
android:width="250px"
android:textStyle="bold"></TextView>
<TextView
android:id="@+id/TextView03"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ETA"
android:width="250px"
android:textStyle="bold"></TextView>
</TableRow>
</TableLayout>
</LinearLayout>
MainActivity.java
MainActivity.java
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_shelter);
List<McDonalds> mcdList = new ArrayList<McDonalds>();
ScrollView sv = new ScrollView(this);
// get a reference for the TableLayout
TableLayout ll = (TableLayout) findViewById(R.id.TableLayout01);
HorizontalScrollView hsv = new HorizontalScrollView(this);
// create a new TableRow
TableRow row = new TableRow(this);
//This will be replaced by a Read Only Stored procedure that gets the List of Shelters
McDonalds mcdonalds = new McDonalds("720 N Main St, Roswell, NM", 1.08, 8.0);
mcdList.add(mcdonalds);
McDonalds mcdonalds1 = new McDonalds("1804 S Main St, Roswell, NM", 2.9, 12.0);
mcdList.add(mcdonalds1);
for (McDonalds mcD : mcdList){
// create a new TextView
TextView t = new TextView(this);
TextView t1 = new TextView(this);
TextView t2 = new TextView(this);
String mcdAddress = mcD.getAddress();
String distance = mcD.getDistance().toString();
String ETA = mcD.getETA().toString();
t.setText(mcdAddress);
t1.setText(distance);
t2.setText(ETA);
row.addView(t);
row.addView(t1);
row.addView(t2);
}
// add the TableRow to the TableLayout
ll.addView(row,new TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
}
由于在code看到上面应该有列表中的两个项目,我需要一种方法来与ll.addView(行,新TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT添加两个项目) );但是这将抛出一个错误。
As seen in the code above there should be two items in the list and I need a way to add both items with the ll.addView(row,new TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); but this will throw a error.
推荐答案
您是pretty接近,但你必须做的是:
You are pretty close but What you have to do is:
- 从你的XML中删除您的TableRow。
- 始终创建在一个循环中一个新的TableRow。
- 所有您需要TextViews布局PARAMS通过
setLayoutParams设置(新TableRow.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT))
; - 添加表行到表的布局也处于环
- 我会说MATCH_PARENT将每个表行宽度 更好
其他的方式做这将是使一个XML文件,它的textViews它里面。用充气LayoutInflater.from(上下文).inflate的XML(...),填写所有3 textviews根据ID找到他们这个膨胀的TableRow添加到tableLayout
The other way to do it would be to make an xml file with and it's textViews inside of it. Inflate the xml with LayoutInflater.from(context).inflate(...), fill all 3 textviews finding them by id and add this inflated tableRow to a tableLayout
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