【转】善用Android预定义样式来为我们的布局设置效果，大大节约代码量

字体大小
对于能够显示文字的控件（如TextView EditText RadioButton Button CheckBox Chronometer等等），你有时需要控制字体的大小。Android平台定义了三种字体大小。

"?android:attr/textAppearanceLarge"

"?android:attr/textAppearanceMedium"

"?android:attr/textAppearanceSmall"

使用方法为：

android:textAppearance="?android:attr/textAppearanceLarge"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textAppearance="?android:attr/textAppearanceSmall"

或

style="?android:attr/textAppearanceLarge"
style="?android:attr/textAppearanceMedium"
style="?android:attr/textAppearanceSmall"

字体颜色
android:textColor="?android:attr/textColorPrimary"
android:textColor="?android:attr/textColorSecondary"
android:textColor="?android:attr/textColorTertiary"
android:textColor="?android:attr/textColorPrimaryInverse"
android:textColor="?android:attr/textColorSecondaryInverse"

ProgressBar
style="?android:attr/progressBarStyleHorizontal"
style="?android:attr/progressBarStyleLarge"
style="?android:attr/progressBarStyleSmall"
style="?android:attr/progressBarStyleSmallTitle"

分隔符
横向：

<View android:layout_width="fill_parent"
      android:layout_height="1dip"
      android:background="?android:attr/listDivider" />

纵向：

<View android:layout_width="1dip"
      android:layout_height="fill_parent"
      android:background="?android:attr/listDivider" />

CheckBox
style="?android:attr/starStyle"

类似标题栏效果的TextView
style="?android:attr/listSeparatorTextViewStyle"

其它有用的样式
android:layout_height="?android:attr/listPreferredItemHeight"

android:paddingRight="?android:attr/scrollbarSize"

style="?android:attr/windowTitleBackgroundStyle"

style="?android:attr/windowTitleStyle"

android:layout_height="?android:attr/windowTitleSize"

android:background="?android:attr/windowBackground"