Android接收扫码数据，文本框 回车、扫码

xx

    @Override
    public boolean dispatchKeyEvent(KeyEvent event) {
        if (event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
            String retStr = this.getLastScanCodeString();
            if (!StringUtil.isEmpty(retStr)) {
                //扫码数据 retStr
            }
        }
        return super.dispatchKeyEvent(event);
    }

文本框 回车、扫码

mEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {  
@Override  
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) 
{  
//当actionId == XX_SEND 或者 XX_DONE时都触发  
//或者event.getKeyCode == ENTER 且 event.getAction == ACTION_DOWN时也触发  
//注意，这是一定要判断event != null。因为在某些输入法上会返回null。  
if (actionId == EditorInfo.IME_ACTION_SEND  || actionId == EditorInfo.IME_ACTION_DONE  || (event != null && KeyEvent.KEYCODE_ENTER == event.getKeyCode() && KeyEvent.ACTION_DOWN == event.getAction())) {  
//处理事件  
}  
return false;  
}  
});