zxing的github地址为：[https://github.com/zxing/zxing](https://github.com/zxing/zxing)
因为使用过程需要编译（或者拷贝源文件），稍微麻烦一些，所以采用了另外一个封装版本：[https://github.com/yipianfengye/android-zxingLibrary](https://github.com/yipianfengye/android-zxingLibrary)
#### 权限
~~~
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
~~~
#### 初始化
在项目入口（比如Application的onCreate方法）初始化
~~~
ZXingLibrary.initDisplayOpinion(this);
~~~
#### 打开相册
也可以使用读取相册中的方式。以下只是增加了分类
~~~
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
startActivityForResult(intent, 1);
~~~
#### 回调
~~~
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1) {
if (data != null) {
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
CodeUtils.analyzeBitmap(picturePath, new CodeUtils.AnalyzeCallback() {
@Override
public void onAnalyzeSuccess(Bitmap mBitmap, String result) {
Toast.makeText(MainActivity.this, "解析结果:" + result, Toast.LENGTH_LONG).show();
}
@Override
public void onAnalyzeFailed() {
Toast.makeText(MainActivity.this, "解析二维码失败", Toast.LENGTH_LONG).show();
}
});
}
}
}
~~~
