XX转Bitmap,XX转Drawable

一、转成Bitmap（1）rgb转bitmap

private Bitmap createColorBitmap(String rgb, int width, int height) {

        Bitmap bmp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

        int color = Color.parseColor(rgb);

        bmp.eraseColor(color);

        return bmp;

    }
    //Usage
    Bitmap bmp = createColorBitmap("#cce8cf", 200, 50);

（2）int型颜色转bitmap

private Bitmap createColorBitmap(int color, int width, int height) {        Bitmap bmp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);        bmp.eraseColor(color);        return bmp;    }//Usage    Bitmap bmp = createColorBitmap(Color.BLUE, 200, 50);

（3）字节数组转bitmap

private Bitmap getBitmapFromByteArray(byte[] array) {        return BitmapFactory.decodeByteArray(array, 0, array.length);    }

（4）读取文件转bitmap

private Bitmap getBitmapFromFile(String pathName) {        return BitmapFactory.decodeFile(pathName);    }

（5）读取资源转bitmap

private Bitmap getBitmapFromResource(Resources res, int resId) {        return BitmapFactory.decodeResource(res, resId);    }

（6）输入流转bitmap

private Bitmap getBitmapFromStream(InputStream inputStream) {        return BitmapFactory.decodeStream(inputStream);    }

（7）Drawable转bitmap（AndroidStudio引用图片为：R.mipmap.ic_launcher）

Bitmap icon = BitmapFactory.decodeResource(context.getResources(),R.drawable.icon_resource);

二、转成Drawable（1）资源文件转Drawable

Drawable drawable = getResources().getDrawable(R.drawable.ic_launcher);

（2）Bitmap转Drawable

Drawable d = new BitmapDrawable(getResources(),bitmap);