Android：根据设备更改字体大小

Question

我需要构建一个textview，它应该自动处理屏幕大小并相应地调整字体大小，以便在所有设备中填充相同的屏幕百分比。因此我使用了dp。我也试过sp。但我做不到。请帮助。

先谢谢。

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff"
android:orientation="vertical"  > 

                <TextView
                    android:id="@+id/tvValue4"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="I planned to use different font size for the textview on different device size so as to make the letters legible. I have already decided not to use different layouts for different devices and built a common layout to fit in all the devices. Now the only problem is on the text size."
                    android:textColor="#000000"  
                    android:textSize="15sp" />

</LinearLayout>

Answer 1

您可以设置不同屏幕尺寸的布局，如下所示

res/layout/main_activity.xml           # For handsets (smaller than 600dp available width)
res/layout-sw600dp/main_activity.xml   # For 7” tablets (600dp wide and bigger)
res/layout-sw720dp/main_activity.xml   # For 10” tablets (720dp wide and bigger)

http://developer.android.com/guide/practices/screens_support.html