这段时间太忙了，以至于一直没有时间更新博客。正好今天公司项目需要加入自动识别验证码的功能，所以特此记录一下现在几乎任何App注册都离不开手机号，如果选择使用手机号注册，必定会接收并填入验证码进行注册。一些注重用户体验的App会在收到验证码后自动帮用户填入，免去了用户手动输入验证码的烦恼，整个注册过程用户是非常Happy的。
下面我们来实现这个功能，其实逻辑流程很简单：
- 创建广播接收器，拦截短信
- 判断是不是本应用需要的验证码短信，若是便继续，否则忽略
- 提取验证码，通过回调接口返回给Activity/Fragment
public class SMSBroadcastReceiver extends BroadcastReceiver {public static final String SMS_RECEIVED_ACTION = "android.provider.Telephony.SMS_RECEIVED";
//回调接口
private OnAuthCodeReceiver mOnAuthCodeReceiver;
//利用正则表达式预编译功能
private static final Pattern AUTH_CODE_PATTERN = Pattern.compile("\\d{6}");
//识别是否是本APP需要的验证码短信的关键字
private final String SMS_KEYWORD = "小猪科技";
@Override
public void onReceive(Context context, Intent intent) {
if (SMS_RECEIVED_ACTION.equals(intent.getAction()) &&
intent.getExtras() != null) {
Object[] pdus = (Object[]) intent.getExtras().get("pdus");
String format = intent.getStringExtra("format");
SmsMessage smsMessage = null;
for (Object pdu : pdus) {
if (Build.VERSION.SDK_INT < 23) {
smsMessage = SmsMessage.createFromPdu((byte[]) pdu);
} else {
smsMessage = SmsMessage.createFromPdu((byte[]) pdu, format);
}
}
if (smsMessage == null) {
return;
}
String content = smsMessage.getDisplayMessageBody();
if (content.contains(SMS_KEYWORD) && mOnAuthCodeReceiver != null) {
mOnAuthCodeReceiver.onReceiver(getAuthCode(content));
abortBroadcast();
}
}
}private String getAuthCode(String content) {
Matcher matcher = AUTH_CODE_PATTERN.matcher(content);
if (matcher.find()) {
return matcher.group();
} else {
return "";
}
}public void setOnAuthCodeReceiverListener(OnAuthCodeReceiver receiver) {
this.mOnAuthCodeReceiver = receiver;
}public interface OnAuthCodeReceiver {
void onReceiver(String code);
}
}
以上代码都是一些常规获取短信内容的操作，没有什么技术含量，唯一注意一下就是这个正则获取的是6位数的验证码。
第二步：动态注册广播 在注册界面，动态注册广播，并在注册界面销毁时，解除注册：
public class RegisterActivity extends AppCompatActivity {
private EditText etAuthCode;
private SMSBroadcastReceiver mSMSBroadcastReceiver = new SMSBroadcastReceiver();
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
etAuthCode = findViewById(R.id.et_auth_code);
registerSMSReceiver();
}private void registerSMSReceiver() {
IntentFilter intentFilter =
new IntentFilter(SMSBroadcastReceiver.SMS_RECEIVED_ACTION);
intentFilter.setPriority(Integer.MAX_VALUE);
registerReceiver(mSMSBroadcastReceiver, intentFilter);
mSMSBroadcastReceiver.setOnAuthCodeReceiverListener(
code -> etAuthCode.setText(code)
);
}@Override
protected void onDestroy() {
super.onDestroy();
unregisterReceiver(mSMSBroadcastReceiver);
}
}
【Android|自动填入短信验证码】最后别忘了在清单文件中加入权限：
