Image reflection effect in Android

1.:

2. Core code:

Package Com.example.pic_reflection;import Android.app.activity;import Android.graphics.bitmap;import Android.graphics.bitmap.config;import Android.graphics.canvas;import Android.graphics.lineargradient;import Android.graphics.matrix;import Android.graphics.paint;import Android.graphics.porterduff.mode;import Android.graphics.porterduffxfermode;import Android.graphics.shader.tilemode;import Android.graphics.drawable.bitmapdrawable;import Android.os.bundle;import Android.widget.imageview;public Class    Mainactivity extends Activity {private ImageView img = null;    Private ImageView orginalimg;        @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);        Setcontentview (R.layout.main);        This.orginalimg = (ImageView) This.findviewbyid (r.id.img);        This.orginalImg.setBackgroundResource (r.drawable.b);        This.img = (ImageView) This.findviewbyid (R.id.reflection1); This.img.setImageBitmap (Createreflectedimage (((Bitmapdrawable) this.getresources (). getdrawable (r.drawable.b)). Getbitmap (), 110); } public static Bitmap createreflectedimage (Bitmap originalimage, int reflectionheight) {int width = Originalim        Age.getwidth ();        int height = originalimage.getheight ();        Matrix matrix = new Matrix ();        Achieve picture rollover 90 degrees Matrix.prescale (1,-1);        if (reflectionheight > Height) reflectionheight = height; Create a reflection picture (half the size of the original picture) Bitmap Reflectionimage = Bitmap.createbitmap (originalimage, 0, Height-reflectionheight, wid        Th, Reflectionheight, Matrix, false);        Create a reflection image Bitmap Finalreflection = Bitmap.createbitmap (width, reflectionheight, config.argb_8888);        Create canvas canvases canvas = new canvas (finalreflection);        Canvas.drawbitmap (originalimage, 0, 0, NULL);        Draw the reflection picture onto the canvas canvas.drawbitmap (reflectionimage, 0, 0, NULL);        Paint Shaderpaint = new paint (); Create a linear gradient LinearGradient object lineArgradient shader = new LinearGradient (0, 0, 0, finalreflection.getheight () + 1, 0x70ffffff, 0X00FFFFFF, Tilemode.mirror);        Shaderpaint.setshader (shader);        Shaderpaint.setxfermode (New Porterduffxfermode (mode.dst_in));        The image is reflected when the canvas is reversed, and the gradient is added to the image's size area.        Canvas.drawrect (0, 0, Width, finalreflection.getheight (), shaderpaint);    return finalreflection; }}

3, Main.xml

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "http://schemas.android.com/apk/res/ Android "    android:layout_width=" wrap_content "    android:layout_height=" wrap_content "    android:o rientation= "vertical" >    <include layout= "@layout/activity_main"/>    <imageview        android:id= "@+id/reflection1"        android:layout_width= "wrap_content"        android:layout_height= "Wrap_content"/></ Linearlayout>

4, Activity_main.xml

<?xml version= "1.0" encoding= "Utf-8"? ><framelayout xmlns:android= "http://schemas.android.com/apk/res/ Android "    android:layout_width=" wrap_content "    android:layout_height=" wrap_content ">    < ImageView        android:id= "@+id/img"        android:layout_width= "match_parent" android:layout_height= "Match_        Parent "        android:scaletype=" Fitxy "/>    <textview        android:id=" @+id/lblbanner "        android:layout _width= "Match_parent"        android:layout_height= "wrap_content"        android:layout_gravity= "Bottom        " Android:background= "#88000000"        android:ellipsize= "End"        android:gravity= "Center_horizontal|center_ Vertical "        android:singleline=" true "        android:text=" car One "        android:textcolor=" #FFF "/></ Framelayout>