1. 根据视频中的讲解，获取uri

2.本应该获取到的Uri

截图很糊，也就是两个结果：

i. sms/raw

ii. sms/3

3.我获得的Uri是三个

我得到的三个Uri中没有sms/后面跟数字的，所以在后面的步骤match的时候结果都为-1

4.我的代码

package com.example.smsprovider;

import android.content.UriMatcher;
import android.database.ContentObserver;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

public class VerifyCodeActivity extends AppCompatActivity {

    private static final String TAG = "VerifyCodeActivity";
    private EditText mPhoneNumEt;
    private Button mCountDownBt;
    private EditText mVerifyCodeEt;
    private Button mCommitBt;

    public static final int MATCH_CODE = 1;
    private static UriMatcher sUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);

    static {
        sUriMatcher.addURI("sms", "#", MATCH_CODE);
    }

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_verify_code);
        initView();
        initEvent();

        //注册短信内容提供者的观察者
        Uri uri = Uri.parse("content://sms/");
        getContentResolver().registerContentObserver(uri, true, new ContentObserver(new Handler()) {
            @Override
            public void onChange(boolean selfChange, @Nullable Uri uri) {
                Log.d(TAG, "selfChange ----------> " + selfChange);
                Log.d(TAG, "uri ----------> " + uri);
                Log.d(TAG, "sUriMatcher.match(uri) ================" + sUriMatcher.match(uri));
                if (sUriMatcher.match(uri) == MATCH_CODE) {
                    Log.d(TAG, "the true uri ----------> " + uri);
                }
            }
        });

    }

    /*按钮监听*/
    private void initEvent() {
        mCountDownBt.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //向服务器请求发送验证码到手机
                String phoneNum = mPhoneNumEt.getText().toString().trim();
                if (TextUtils.isEmpty(phoneNum)) {
                    Toast.makeText(VerifyCodeActivity.this, "手机号不能为空", Toast.LENGTH_SHORT).show();
                    return;
                }
            }
            //TODO:向服务器请求发送验证码到手机
        });
        mCommitBt.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //检查内容
                String phoneNum = mPhoneNumEt.getText().toString().trim();
                String verifyCode = mVerifyCodeEt.getText().toString().trim();
                if (TextUtils.isEmpty(phoneNum) || TextUtils.isEmpty(verifyCode)) {
                    Toast.makeText(VerifyCodeActivity.this, "验证码和手机号码都不可以为空", Toast.LENGTH_SHORT).show();
                    return;
                }
            }
        });
    }

    /*初始化控件*/
    private void initView() {
        mPhoneNumEt = this.findViewById(R.id.phone_num_et);
        mCountDownBt = this.findViewById(R.id.count_down_bt);
        mVerifyCodeEt = this.findViewById(R.id.verify_code_et);
        mCommitBt = this.findViewById(R.id.submit_bt);
    }
}

5.我的模拟器版本

是模拟器版本的问题吗？