First day of android study

1:Android中TextView中的字体大小设置
可以在XML里面加一句话
android:textSize="15px" 15像素
或者
在 mTextView.setTextSize(size);
2:将以xml类型文件的信息读取并放入到字符串数组中
main.xml:

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/white"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/login_theme"
android:gravity="center_horizontal"
android:layout_y="50sp"
android:textSize="15px"

/>
<Spinner
android:id="@+id/mySpinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="60sp"
android:layout_y="100sp"

/>



</AbsoluteLayout>
options.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name='option'>
<item>请选择查询类别</item>
<item>快轨查询</item>
<item>公交车查询</item>
<item>火车查询</item>
<item>地铁查询</item>
</string-array>
</resources>

public class MainActivity extends Activity {
private Spinner mySpinner;
private ArrayAdapter<String> adapter;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// 载入main.xml Layout
setContentView(R.layout.main);
// 以findViewById()取得mySpinner对象
mySpinner = (Spinner) this.findViewById(R.id.mySpinner);
//将values/options.xml文件取得到字符串数组中
String[] options = this.getResources().getStringArray(R.array.option);

// 创建ArrayAdapter对象
adapter = new ArrayAdapter(this, android.R.layout.simple_spinner_item,
options);
mySpinner.setAdapter(adapter);

}
}