二维码扫描

用第三方库进行二维码扫描

public class MainActivity extends Activity {
    private Button mButtonScan;
    private TextView mTextViewSca;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mButtonScan=(Button) findViewById(R.id.button_scan);
        mButtonScan.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent statSan=new Intent(MainActivity.this, CaptureActivity.class);
//              startActivity(statSan);
                startActivityForResult(statSan, 0x23);


            }
        });
        mTextViewSca=(TextView) findViewById(R.id.textview_scan);
    }
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        super.onActivityResult(requestCode, resultCode, data);
        if(resultCode==RESULT_OK){
            if(requestCode==0x23){
                String valuse=data.getExtras().getString("result");
                mTextViewSca.setText(valuse);
            }
        }
    }
}