Android Studio-47th phase frosted glass effects and dynamic generation of QR codes and increased click-to-hot zones

Recently back to see the code, some custom view writing is very good, the following package out, I hope to help you:

1. Frosted Glass Effect: bitmaputils

package com.example.p030_popbgqcode.utils;import android.content.context;import  android.graphics.bitmap;import android.renderscript.allocation;import android.renderscript.element; Import android.renderscript.renderscript;import android.renderscript.scriptintrinsicblur;import  android.view.View;public class BitmapUtils {    /**      *      *  @param  view     * @ return     */    public static bitmap  Takescreenshot (View view)  {         View.setdrawingcacheenabled (True);         view.builddrawingcache (True) ;         bitmap res = bitmap.createbitmap ( View.getdrawingcache ());         view.setdRawingcacheenabled (False);        return res;     }    /**     *  Blur      *  @param  context     *  @param  src     * @ Return     */    public static bitmap blur (Context  CONTEXT, BITMAP SRC)  {        bitmap out  = bitmap.createbitmap (SRC);        //  Creating Renderscript Kernel Objects         RenderScript script =  Renderscript.create (context);        //  Creates a blur effect of the Renderscript tool object         scriptintrinsicblur blur =  scriptintrinsicblur.create (Script, element.u8_4 (script);        //  because Renderscript does not use VMS to allocate memory, So you need to use the allocation class to create and allocate memory space.         //  create allocation objects when the memory is empty, you need to use CopyTo () to fill in the data.         allocation inallo = allocation.createfrombitmap (SCRIPT, SRC);        allocation outallo =  Allocation.createfrombitmap (script, out);        //  Sets the degree of blur for rendering,  25f is the maximum blur         blur.setradius (25f);         //  set input memory for Blurscript objects          blur.setinput (Inallo);        //  save output data to output memory          blur.foreach (Outallo);         //   Populating data into allocation    &NBsp;    outallo.copyto (out);        return  out;    }}

Popwindows How to use:

Bitmap shot = Bitmaputils.takescreenshot (Activity.getwindow (). Getdecorview ()); Bitmap blur = Bitmaputils.blur (activity, shot);

2. Dynamically generate two-dimensional code: Qrcodeutil

package com.example.p030_popbgqcode.utils;import android.graphics.bitmap;import  android.widget.imageview;import com.google.zxing.barcodeformat;import  com.google.zxing.encodehinttype;import com.google.zxing.writerexception;import  com.google.zxing.common.bitmatrix;import com.google.zxing.qrcode.qrcodewriter;import  java.util.hashtable;public class qrcodeutil {    private static  int image_halfwidth = 50;//width value, which affects the middle picture size     private static final  int DEFAULT_SIZE = 500;    /**     *  Generate QR code, default size is 500*500     *     *  @param  text  Need to generate two-dimensional code text, URLs, etc.      *  @return  bitmap     */     public static void createqrcode (imageview iv, string  text)  {        createqrcode (iv, text, default_size);     }    /**     *  generate QR Code       *     *  @param  text  need to generate two-dimensional code text, URLs, etc.       *  @param  size  need to generate two-dimensional code size ()      *  @return  bitmap      */    public static void createqrcode (final  imageview iv, final string text, final int size)  {         new thread ()  {              @Override              Public void run ()  {                 super.run ();                 try {                      Hashtable<EncodeHintType, String> hints = new Hashtable<> ();                      hints.put (encodehinttype.character_set,  "Utf-8");                     bitmatrix bitmatrix =  new qrcodewriter (). Encode (text,                              barcodeformat.qr_code, size, size, hints);                     int[] pixels = new int[size * size];                      for  (int y = 0; y < size; y++)  {                          for  (int x = 0; x < size; x++)  {                              if  (Bitmatrix.get (x, y))  {                       &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;PIXELS[Y&NBSP;*&NBSP;SIZE&NBSP;+&NBSP;X]  = 0xff000000;                             } else {                                  pixels[y * size + x] =  0xffffffff;                             }                         }                      }                     sleep (500);                     final bitmap bitmap = bitmap.createbitmap (size, size,                              bitmap.config.argb_8888);                     bitmap.setpixels (Pixels, 0,  size, 0, 0, size, size);                     iv.post (new runnable ()  {                           @Override                  &nBsp;       public void run ()  {                              if  (iv != null)  {                                  iv.setimagebitmap (bitmap);                              }                         }                     });                 } catch  (writerexception e)  {                      E.printstacktrace ();                     toastutil.showtoastshort ("Creat code err");                 } catch  ( Interruptedexception e)  {                     toastutil.showtoastshort ("Creat code err");                      e.printstacktrace ();                 }            }        }.start ();     }}

How to use:

Qrcodeutil.createqrcode (PC_IV1, str, 300);

3. Increase the hot-click zone: Expandviewrectutils

package com.example.p030_popbgqcode.utils;import android.graphics.rect;import  android.view.touchdelegate;import android.view.view;public class expandviewrectutils {     /**     *  increase reaction Heat zone      * @ param view view     *  @param  top  Increase upper hot zone       *  @param  bottom  Increase lower hot zone      *  @param  left  Increase left hot zone      *  @param  right  increase right hot zone      */     public static void expandviewtouchdelegate (final View view,  Final int top, final int bottom, final int left, final int  right)  {         ((View)  view.getparent ()). Post (new  runnable ()  {             @Override              public void run ()  {                 rect bounds = new rect ();                 view.setenabled (TRUE);                  View.gethitrect (bounds);                 bounds.top -= top;                 bounds.bottom += bottom;                 bounds.left -= left;                 bounds.right += right;                 touchdelegate touchdelegate = new touchdelegate ( Bounds, view);                 if  (View.class.isInstance (view.getparent))  {                      (View)  view.getparent ()). Settouchdelegate (touchdelegate);                 }            }         });    }    /**      *  Restore the touch and click Response range of the view to a minimum of not less than the view itself range      *     *   @param  view &Nbsp;   */    public static void restoreviewtouchdelegate ( Final view view)  {         (View)  view.getparent () ). Post (new runnable ()  {            @ Override            public void run ()  {                rect  bounds = new rect ();                 bounds.setempty ();                 touchdelegate touchdelegate = new touchdelegate (bounds ,  view);                 if  (View.class.isInstanCE (View.getparent ()))  {                      (View)  view.getparent (). Settouchdelegate (Touchdelegate);                 }             }        } );     }}

How to use:

Expandviewrectutils.expandviewtouchdelegate (TV1, 10, 10, 10, 10);

Effects such as:

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Address: Https://github.com/geeklx/MyApplication/tree/master/p030_popbgqcode

Additional drawings:

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This article is from the "Liangxiao Technology Center" blog, please be sure to keep this source http://liangxiao.blog.51cto.com/3626612/1954841

Android Studio-47th phase frosted glass effects and dynamic generation of QR codes and increased click-to-hot zones