Android 图片平铺成效_Android

Android 图片平铺效果

在drawable文件夹中添加自己的my.xml文件，描述如：

<?xml?version?="1.0"?encoding?="utf-8"??>????
<bitmap????
????xmlns:Android="http://schemas.android.com/apk/res/android"????
????Android:src="@drawable/pic_bg"????
????Android:tileMode="repeat"?/>????

然后再需要用的地方使用：

Xml代码

Android:background="@drawable/mybg"????

代码实现方式：

Java代码

Bitmap?bitmap?=?BitmapFactory.decodeResource(getResources(),?R.drawable.icon);????
BitmapDrawable?bd?=?new?BitmapDrawable(bitmap);????
bd.setTileModeXY(TileMode.REPEAT?,?TileMode.REPEAT?);????
bd.setDither(true);????
view.setBackgroundDrawable(bd);???

再着可以用*.9.png实现。

可以在上左两边添加要延伸的像素行。

在Android的UI开发中，有时为了界面美观而需要虚线。

package?com.custom;????
????
???import?Android.content.Context;????
import?Android.graphics.Canvas;????
import?Android.graphics.Color;????
import?Android.graphics.DashPathEffect;????
import?Android.graphics.Paint;????
import?Android.graphics.Path;????
import?Android.graphics.PathEffect;????
import?Android.graphics.Rect;????
import?Android.util.AttributeSet;????
import?Android.util.DisplayMetrics;????
import?Android.util.Log;????
import?Android.view.View;????
/**??
?*?画虚线组件??
[email protected]?
[email protected]?
?*/????
public?class?DashedLine?extends?View?{????
????private?final?String?namespace?=?"http://com.smartmap.driverbook";????
????private?float?startX;????
????private?float?startY;????
????private?float?endX;????
????private?float?endY;????
????private?Rect?mRect;????
??????
????public?DashedLine(Context?context,?AttributeSet?attrs)?{????
????????super(context,?attrs);??????????????
????????????
????}????
????
????@Override????
????protected?void?onDraw(Canvas?canvas)?{????
????????//?TODO?Auto-generated?method?stub?????
????????super.onDraw(canvas);????????????
????????Paint?paint?=?new?Paint();????
????????paint.setStyle(Paint.Style.STROKE);????
????????paint.setColor(Color.DKGRAY);????
????????Path?path?=?new?Path();?????????
????????path.moveTo(0,?10);????
????????path.lineTo(480,10);??????????
????????PathEffect?effects?=?new?DashPathEffect(new?float[]{5,5,5,5},1);????
????????paint.setPathEffect(effects);????
????????canvas.drawPath(path,?paint);????
????}????

在layout文件夹下的xml引用这个控件
XML代码

<com.custom.DashedLine?????
?????Android:id="@+id/dashedLine"????
?????Android:layout_width="wrap_content"?????????????
?????Android:layout_height="20px"??????????????????
????????????????????????
??????/>? ??