方法一:
基本思路是先把bitmap转化为byte数组,用Intent传递数组,在将数组转化为bitmap
bitmap转化为byte数组的方法:
private byte[] Bitmap2Bytes(Bitmap bm){ ByteArrayOutputStream baos = new ByteArrayOutputStream(); bm.compress(Bitmap.CompressFormat.PNG, 100, baos); return baos.toByteArray(); }
byte buff[]=mIntent.getByteArrayExtra("image"); bitmap = BitmapFactory.decodeByteArray(buff, 0, buff.length);
发送图片:
Intent intent = new Intent(ChangePortraitActivity.this , UserProfileActivity.class); mImageView.setDrawingCacheEnabled(Boolean.TRUE); intent.putExtra("BITMAP", mImageView.getDrawingCache()); //这里可以放一个bitmap startActivity(intent);
//接收的activity Intent intent = getIntent(); if (intent != null && intent.getParcelableExtra("BITMAP") != null) { Bitmap bitmap = (Bitmap)getIntent().getParcelableExtra("BITMAP"); mImageViewPortrait.setImageBitmap(bitmap); }