android ImageView画图添加数字显示
public class ImageNumberView extends ImageView
{
?public String number;
?private PaintFlagsDrawFilter pfd;
?Resources res = getResources();
?public ImageNumberView(Context context)
?{
??super(context);
?}
?public ImageNumberView(Context context, AttributeSet set)
?{
??super(context, set);
?}
?// 画图类
//?public void onDraw(Canvas canvas)
//?{
//
//??super.onDraw(canvas);
//??Paint mPaint = new Paint();
//??pfd = new PaintFlagsDrawFilter(0, Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
//??canvas.setDrawFilter(pfd);
//
//??String familyName = "Arial Rounded MT Bold";
//??Typeface font = Typeface.create(familyName, Typeface.BOLD);
//??mPaint.setColor(Color.BLACK);
//??mPaint.setTypeface(font);
//??mPaint.setTextSize(20);
//??if (number != null && !number.equals("0"))
//??{
//???if (number != null && number.length() == 1)
//???{
//????Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.num_bg3);
//????
//????canvas.drawBitmap(bmp, this.getWidth()-bmp.getWidth(), this.getHeight()-bmp.getHeight(), mPaint);
//????canvas.drawText(number, this.getWidth()-bmp.getWidth()/2-5, this.getHeight()-bmp.getHeight()/2+6, mPaint);
//???} else if (number != null && number.length() == 2)
//???{
//????Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.num_bg2);
//????canvas.drawBitmap(bmp, 17, 12, mPaint);
//????canvas.drawText(number, 24, 21, mPaint);
//???} else if (number != null && number.length() == 3)
//???{
//????Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.num_bg3);
//????canvas.drawBitmap(bmp, 12, 12, mPaint);
//????canvas.drawText(number, 19, 21, mPaint);
//???}
//??}
//
//?}
?
??? /**
???? * 在给定的图片的右上角加上联系人数量。数量用红色表示
???? * @param icon 给定的图片
???? * @return 带联系人数量的图片
???? */?
??? public Bitmap generatorContactCountIcon(Bitmap icon,int number){?
??????? //初始化画布?
//??????? int iconSize=(int)getResources().getDimension(android.R.dimen.app_icon_size);
//??????? Log.d(TAG, "the icon size is "+iconSize);
???????
//???????? Bitmap contactIcon=Bitmap.createBitmap(this.getWidth(), this.getHeight(), Config.ARGB_8888);?
?????? Bitmap contactIcon=Bitmap.createBitmap(icon.getWidth(), icon.getHeight(), Config.ARGB_8888);?
?????? Canvas canvas=new Canvas(contactIcon);?
????????
?????? //拷贝图片?
?????? Paint iconPaint=new Paint();?
?????? iconPaint.setDither(true);//防抖动?
?????? iconPaint.setFilterBitmap(true);//用来对Bitmap进行滤波处理，这样，当你选择Drawable时，会有抗锯齿的效果?
?????? Rect src=new Rect(0, 0, icon.getWidth(), icon.getHeight());?
?????? Rect dst=new Rect(0, 0, icon.getWidth(), icon.getHeight());?
?????? canvas.drawBitmap(icon, src, dst, iconPaint);?
????????
?????? //在图片上创建一个覆盖的联系人个数?
?????? int contacyCount=number;?
?????? Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.num_bg3);
?????? //启用抗锯齿和使用设备的文本字距?
?????? Paint countPaint=new Paint(Paint.ANTI_ALIAS_FLAG|Paint.DEV_KERN_TEXT_FLAG);?
//?????? countPaint.setColor(Color.parseColor("#f63003"));
?????? countPaint.setColor(Color.WHITE);
?????? countPaint.setTextSize(35);?
?????? countPaint.setTypeface(Typeface.DEFAULT_BOLD);
?????? countPaint.setAntiAlias(true);
//?????? countPaint.setShadowLayer (5, 3, 3, 0xFF000000);//加阴影
?????? canvas.drawBitmap(bmp, 135, 1, countPaint);
?????? canvas.drawText(String.valueOf(contacyCount), 143, 35, countPaint);?
?????? return contactIcon;?
?? }?
?
?
?
?public String getNumber()
?{
??return number;
?}
?public void setNumber(String number)
?{
??this.number = number;
?}
}
