java 如何以编程方式在java中向表格布局添加和删除行
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how add and delete rows to table layout in java programically
提问by tanhatarin tanha
I am new in java and android programing. I want to add rows(include some text box) to table layout by code and delete some of them.and finaly get their text box valus.how can i do it?
我是java和android编程的新手。我想通过代码向表格布局添加行（包括一些文本框）并删除其中的一些。最后得到他们的文本框值。我该怎么做？
回答by Esteam
Here is a simple example to do what you want:
这是一个简单的例子来做你想做的事：
Layout:
布局：
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/table"
android:layout_width="match_parent"
android:layout_height="match_parent">
</TableLayout>
Activity:
活动：
public class TableLayoutActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.table_layout);
final TableLayout tableLayout = (TableLayout) findViewById(R.id.table);
for (int i = 0; i < 5; i++) {
// Creation row
final TableRow tableRow = new TableRow(this);
tableRow.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.WRAP_CONTENT, TableLayout.LayoutParams.WRAP_CONTENT));
// Creation textView
final TextView text = new TextView(this);
text.setText("Test" + i);
text.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT));
// Creation button
final Button button = new Button(this);
button.setText("Delete");
button.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT));
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final TableRow parent = (TableRow) v.getParent();
tableLayout.removeView(parent);
}
});
tableRow.addView(text);
tableRow.addView(button);
tableLayout.addView(tableRow);
}
}
}
回答by Valentin Grégtheitroade
I recently got the same problem. I fixed it like this. Suppose your TableLayout is called tableand als has this id in the xml layout.
我最近遇到了同样的问题。我是这样修的。假设您的 TableLayout 称为table，并且 als 在 xml 布局中具有此 ID。
<TableLayout
android:id="@+id/table"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
Suppose you have a list of Person objects, this is the way to populate the table:
假设您有一个 Person 对象列表，这是填充表的方法：
ArrayList<Person> persons = getPersonList(); // --> suppose getting the list from this function
TableLayout table = (TableLayout) findViewById(R.id.table);
for(Person person : persons) {
TableRow row = new TableRow(this);
TextView tvName = new TextView(this);
TextView tvAge = new TextView(this);
TextView tvMail = new TextView(this);
tvName.setText(person.getName());
tvAge.setText(String.valueOf(person.getAge());
tvMail.setText(person.getMail());
row.addView(tvName);
row.addView(tvAge);
row.addView(tvMail);
table.addView(row);
}
This basically means that each person has its own row. For every property of your person, 1 column is used.
这基本上意味着每个人都有自己的行。对于您个人的每个属性，使用 1 列。
Regards
问候
