Tool class for creating reflection effects in Android

First, sometimes we need to create the effect of reflection, we touch the most is the image can create a reflection, and the layout can still create a reflection.

Second, the tool class code

ImportAndroid.graphics.Bitmap;ImportAndroid.graphics.Bitmap.Config;ImportAndroid.graphics.Canvas;Importandroid.graphics.LinearGradient;ImportAndroid.graphics.Matrix;ImportAndroid.graphics.Paint;ImportAndroid.graphics.PorterDuff.Mode;ImportAndroid.graphics.PorterDuffXfermode;ImportAndroid.graphics.Shader.TileMode;ImportAndroid.view.View;/*** How to create image reflection * *@author  * */ Public classImagereflect {Private Static intReflectimageheight = 90;//The height of the reflection//Convert to Bitmap     Public StaticBitmap Convertviewtobitmap (View paramview) {paramview.measure (View.MeasureSpec.makeMeasureSpec (0, 0), View.MeasureSpec.makeMeasureSpec (0, 0)); Paramview.layout (0, 0, Paramview.getmeasuredwidth (), Paramview.getmeasuredheight ());        Paramview.builddrawingcache (); returnParamview.getdrawingcache (); }     Public StaticBitmap createcutreflectedimage (Bitmap parambitmap,intparamint) {        inti =parambitmap.getwidth (); intj =parambitmap.getheight (); Bitmap LOCALBITMAP2=NULL; if(J <= Paramint +reflectimageheight) {LOCALBITMAP2=NULL; } Else{Matrix Localmatrix=NewMatrix (); Localmatrix.prescale (1.0F, -1.0f); //System.out.println (J-reflectimageheight-//paramint);Bitmap LocalBitmap1 = Bitmap.createbitmap (parambitmap, 0, J-reflectimageheight-paramint, I, Reflectimageheight, LocalM Atrixtrue); LOCALBITMAP2=Bitmap.createbitmap (i, Reflectimageheight, Bitmap.Config.ARGB_8888); Canvas Localcanvas=NewCanvas (LOCALBITMAP2); Localcanvas.drawbitmap (LocalBitmap1,0.0F, 0.0F,NULL); LinearGradient locallineargradient=NewLinearGradient (0.0F, 0.0F, 0.0F, Localbitmap2.getheight (),-2130706433, 16777215, Tilemode.clamp); Paint Localpaint=NewPaint ();            Localpaint.setshader (locallineargradient); Localpaint.setxfermode (NewPorterduffxfermode (mode.dst_in)); Localcanvas.drawrect (0.0F, 0.0F, I, Localbitmap2.getheight (), localpaint); if(!localbitmap1.isrecycled ()) localbitmap1.recycle ();        System.GC (); }        returnLOCALBITMAP2; }     Public StaticBitmap createreflectedimage (Bitmap parambitmap,intparamint) {        inti =parambitmap.getwidth (); intj =parambitmap.getheight ();        Bitmap LOCALBITMAP2; if(J <=paramint) {LOCALBITMAP2=NULL; } Else{Matrix Localmatrix=NewMatrix (); Localmatrix.prescale (1.0F, -1.0f); Bitmap LocalBitmap1= Bitmap.createbitmap (parambitmap, 0, J-paramint, I, Paramint, Localmatrix,true); LOCALBITMAP2=Bitmap.createbitmap (i, Paramint, Bitmap.Config.ARGB_8888); Canvas Localcanvas=NewCanvas (LOCALBITMAP2); Localcanvas.drawbitmap (LocalBitmap1,0.0F, 0.0F,NULL); LinearGradient locallineargradient=NewLinearGradient (0.0F, 0.0F, 0.0F, Localbitmap2.getheight (),-2130706433, 16777215, Tilemode.clamp); Paint Localpaint=NewPaint ();            Localpaint.setshader (locallineargradient); Localpaint.setxfermode (NewPorterduffxfermode (mode.dst_in)); Localcanvas.drawrect (0.0F, 0.0F, I, Localbitmap2.getheight (), localpaint); }        returnLOCALBITMAP2; }         Public StaticBitmap createreflectedimage (Bitmap originalimage) {Final intReflectiongap = 4; intwidth =originalimage.getwidth (); intHeight =originalimage.getheight (); Matrix Matrix=NewMatrix (); Matrix.prescale (1,-1); Bitmap Reflectionimage= Bitmap.createbitmap (originalimage, 0, Height/2, width, HEIGHT/2, matrix,false); Bitmap bitmapwithreflection=bitmap.createbitmap (width, height+ HEIGHT/2), config.argb_8888); Canvas Canvas=NewCanvas (bitmapwithreflection); Canvas.drawbitmap (Originalimage,0, 0,NULL); Paint Defaultpaint=NewPaint (); Canvas.drawrect (0, height, width, height +Reflectiongap, Defaultpaint); Canvas.drawbitmap (Reflectionimage,0, height + reflectiongap,NULL); Paint Paint=NewPaint (); LinearGradient Shader=NewLinearGradient (0, Originalimage.getheight (),0, Bitmapwithreflection.getheight ()+ Reflectiongap, 0X70FFFFFF, 0X00FFFFFF, Tilemode.mirror);        Paint.setshader (shader); Paint.setxfermode (NewPorterduffxfermode (mode.dst_in)); Canvas.drawrect (0, height, width, bitmapwithreflection.getheight ()+reflectiongap, paint); returnbitmapwithreflection; }}

Three, there are many ways, you can choose according to the needs of their own.

Invocation Example:

PS: I created multiple reflections, so I used a for loop. The loop operation is an array of two images.

 for (int k = 0; k < reflect_count; k++) {            0));        }