The bitmap, InputStream, drawable, byte[], and Base64 transitions between Android-related things

1           //convert bitmap to InputStream (compression rate quality, 100 means no compression, 10 for compression 90%)2            PublicInputStream Bitmap2inputstream (Bitmap BM,intquality) {3Bytearrayoutputstream BAOs =NewBytearrayoutputstream ();4 bm.compress (Bitmap.CompressFormat.PNG, quality, baos);5InputStream is =NewBytearrayinputstream (Baos.tobytearray ());6               returnis ;7           }8           9           //convert bitmap to InputStreamTen            PublicInputStream Bitmap2inputstream (Bitmap BM) { OneBytearrayoutputstream BAOs =NewBytearrayoutputstream (); ABm.compress (Bitmap.CompressFormat.JPEG, 100, BAOs); -InputStream is =NewBytearrayinputstream (Baos.tobytearray ()); -               returnis ; the           } -            -           //convert InputStream to bitmap -            PublicBitmap Inputstream2bitmap (InputStream is) { +               returnBitmapfactory.decodestream (IS); -           } +          A           //drawable conversion into InputStream at            PublicInputStream Drawable2inputstream (drawable d) { -Bitmap Bitmap = This. Drawable2bitmap (d); -               return  This. Bitmap2inputstream (bitmap); -           } -          -           //InputStream conversion into drawable in            Publicdrawable inputstream2drawable (InputStream is) { -Bitmap Bitmap = This. Inputstream2bitmap (is); to               return  This. bitmap2drawable (bitmap); +           } -          the           //drawable Convert to byte[] *            Public byte[] drawable2bytes (drawable d) { $Bitmap Bitmap = This. Drawable2bitmap (d);Panax Notoginseng               return  This. Bitmap2bytes (bitmap); -           } the          +           //byte[] Convert to drawable A            PublicDrawable bytes2drawable (byte[] b) { theBitmap Bitmap = This. Bytes2bitmap (b); +               return  This. bitmap2drawable (bitmap); -           } $          $           //bitmap Convert to byte[] -            Public byte[] bitmap2bytes (Bitmap BM) { -Bytearrayoutputstream BAOs =NewBytearrayoutputstream (); theBm.compress (Bitmap.CompressFormat.PNG, 100, BAOs); -               returnBaos.tobytearray ();Wuyi           } the          -           //byte[] Convert to bitmap Wu            PublicBitmap Bytes2bitmap (byte[] b) { -               if(B.length! = 0) { About                   returnBitmapfactory.decodebytearray (b, 0, b.length); $               } -               return NULL; -           } -            A           //convert byte[] to InputStream +            PublicInputStream Byte2inputstream (byte[] b) { theBytearrayinputstream Bais =NewBytearrayinputstream (b); -               returnBais; $           } the          the           //convert InputStream to byte[] the            Public byte[] Inputstream2bytes (InputStream is) { theString str = ""; -               byte[] ReadByte =New byte[1024]; in               intReadcount =-1; the               Try { the                    while((Readcount = Is.read (readbyte, 0, 1024))! =-1) { Aboutstr + =NewString (readbyte). Trim (); the                   } the                   returnstr.getbytes (); the}Catch(Exception e) { + e.printstacktrace (); -               } the               return NULL;Bayi           } the            the           //drawable conversion into bitmap -            PublicBitmap Drawable2bitmap (drawable drawable) { -Bitmap Bitmap =Bitmap.createbitmap (Drawable.getintrinsicwidth (), theDrawable.getintrinsicheight (), drawable.getopacity ()! = Pixelformat.opaque?Bitmap.Config.ARGB_8888:Bitmap.Config.RGB_565); theCanvas Canvas =NewCanvas (bitmap); theDrawable.setbounds (0, 0, Drawable.getintrinsicwidth (), Drawable.getintrinsicheight ()); the Drawable.draw (canvas); -               returnbitmap; the           } the          the           //bitmap conversion into drawable94            Publicdrawable bitmap2drawable (Bitmap Bitmap) { thebitmapdrawable BD =Newbitmapdrawable (bitmap); thedrawable d =(drawable) BD; the               returnD;98           } About            -           //convert bitmap to Base64101            PublicString getimgstr (Bitmap bit) {102Bytearrayoutputstream bos=NewBytearrayoutputstream ();103Bit.compress (Compressformat.jpeg, N, BOS);//parameter 100 means no compression104              byte[] bytes=Bos.tobytearray (); the              returnbase64.encodetostring (bytes, base64.default);106           }   107                108           //convert Base64 to bitmap109            PublicBitmap getimg (String str) { the               byte[] bytes;111Bytes=base64.decode (str, 0); the               returnBitmapfactory.decodebytearray (Bytes, 0, bytes.length);113}

Recently encountered a lot of conversion relationship, so just put it down to share with you ...

The bitmap, InputStream, drawable, byte[], and Base64 transitions between Android-related things