Android生成一维码

/**
* 用于将给定的内容生成成一维码 注：目前生成内容为中文的话将直接报错，要修改底层jar包的内容
*
* @param content 将要生成一维码的内容
* @return 返回生成好的一维码bitmap
* @throws WriterException WriterException异常
*/
public static Bitmap CreateOneDCode(String content) throws WriterException {
// 生成一维条码,编码时指定大小,不要生成了图片以后再进行缩放,这样会模糊导致识别失败
BitMatrix matrix = new MultiFormatWriter().encode(content,
BarcodeFormat.CODE_128, 500, 200);
int width = matrix.getWidth();
int height = matrix.getHeight();
int[] pixels = new int[width * height];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
if (matrix.get(x, y)) {
pixels[y * width + x] = 0xff000000;
}
}
}

Bitmap bitmap = Bitmap.createBitmap(width, height,
Bitmap.Config.ARGB_8888);
// 通过像素数组生成bitmap,具体参考api
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
}

button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub

//得到输入框的值
String trim = editText.getText().toString().trim();
Bitmap bitmap;
try {
//生成一维码
bitmap = BitmapUtil.CreateOneDCode(trim);
if(bitmap != null){
//给image赋值
imageView.setImageBitmap(bitmap);
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
});