Text View
,则需要将\n
传递给Text View
文本属性。请参考此处。
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/description"
android:layout_width="wrap_content"
android:layout_height="100dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"
android:layout_marginRight="5dp"
android:layout_marginTop="5dp"
android:background="#000"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:paddingTop="5dp"
android:text="A\nB\nC\nD\n"
android:textColor="#FFF"
android:textSize="18dp" />
</RelativeLayout>
public class VerticalTextView extends AppCompatTextView {
final boolean topDown;
public VerticalTextView(Context context, AttributeSet attrs) {
super(context, attrs);
final int gravity = getGravity();
if (Gravity.isVertical(gravity) && (gravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
setGravity((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) | Gravity.TOP);
topDown = false;
} else
topDown = true;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(heightMeasureSpec, widthMeasureSpec);
setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
}
@Override
protected boolean setFrame(int l, int t, int r, int b) {
return super.setFrame(l, t, l + (b - t), t + (r - l));
}
@Override
public void draw(Canvas canvas) {
if (topDown) {
canvas.translate(getHeight(), 0);
canvas.rotate(90);
} else {
canvas.translate(0, getWidth());
canvas.rotate(-90);
}
canvas.clipRect(0, 0, getWidth(), getHeight(), Region.Op.REPLACE);
super.draw(canvas);
}
}
\n
,这样能解决你的问题吗? - Shayan PourvatanText View
有没有特定的用途可以垂直显示文本? - Jay Rathod