AndroidBitmap与String的相互转换

public Bitmap stringToBitmap(String string) {// 将字符串转换成Bitmap类型Bitmap bitmap &＃61; null;try {byte[] bitmapArray;bitmapArray &＃61; Base64.decode(string, Base64.DEFAULT);bitmap &＃61; BitmapFactory.decodeByteArray(bitmapArray, 0,bitmapArray.length);} catch (Exception e) {e.printStackTrace();}return bitmap;
}




2. Bitmap转换成String

public String bitmapToString(Bitmap bitmap){//将Bitmap转换成字符串String string&＃61;null;ByteArrayOutputStream bStream&＃61;new ByteArrayOutputStream();bitmap.compress(CompressFormat.PNG,100,bStream);byte[]bytes&＃61;bStream.toByteArray();string&＃61;Base64.encodeToString(bytes,Base64.DEFAULT);return string;
}




3. 使用示例

public void Test(){ImageView img &＃61; (ImageView) findViewById(R.id.img);//首先将图片转换成bitmap&＃xff0c;然后将bitmap转换成StringBitmap bitmap &＃61; BitmapFactory.decodeResource(getResources(), R.drawable.icon);String bitmapString &＃61; bitmapToString(bitmap);//将String转换成Bitmap之后&＃xff0c;通过setImageBitmap将图片显示出来img.setImageBitmap(stringToBitmap(bitmapString));
}