android 读取sms短信

import android.annotation.SuppressLint;
import android.database.Cursor;
import android.database.sqlite.SQLiteException;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ScrollView;
import android.widget.TextView;
import java.text.SimpleDateFormat;
import java.util.Date;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    Permission mPermission = new Permission(this);
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button permission = findViewById(R.id.permission);
        permission.setOnClickListener(this);
        Button show = findViewById(R.id.show);
        show.setOnClickListener(this);

    }

    @RequiresApi(api = Build.VERSION_CODES.O)
    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.permission:
                //Dynamic permissions are required to read information
                mPermission.requestPermissions();
                break;
            case R.id.show:
                //Scrolling display
                TextView tv = new TextView(this);
                tv.setText(getSmsInPhone());
                ScrollView sv = new ScrollView(this);
                sv.addView(tv);
                setContentView(sv);
                break;
            default:
                break;
        }
    }
   
    @SuppressLint("Recycle")
    public String getSmsInPhone() {
         //The message to access the URL
        final String SMS_ALL = "content://sms/";
        final String SMS_INBOX = "content://sms/inbox";
        final String SMS_SEND = "content://sms/sent";
        final String SMS_DRAFT = "content://sms/draft";
        final String SMS_OUTBOX = "content://sms/outbox";
        final String SMS_FAILED = "content://sms/failed";
        final String SMS_QUEUED = "content://sms/queued";

        Cursor cursor = null;
        StringBuilder smsBuilder = new StringBuilder();
        
        try {
            Uri uri = Uri.parse(SMS_INBOX);
            String[] projection = new String[] { "_id", "address", "person", "body", "date", "type" };
            cursor = getContentResolver().query(uri, projection, null, null, "date desc");      
            if (cursor != null) {
                if (cursor.moveToFirst()) {
                    // get internal SMS
                    int indexAddress = cursor.getColumnIndex("address");
                    int indexPerson = cursor.getColumnIndex("person");
                    int indexBody = cursor.getColumnIndex("body");
                    int indexDate = cursor.getColumnIndex("date");
                    int indexType = cursor.getColumnIndex("type");

                    do {
                        String strAddress = cursor.getString(indexAddress);
                        int intPerson = cursor.getInt(indexPerson);
                        String strBody = cursor.getString(indexBody);
                        long longDate = cursor.getLong(indexDate);
                        int intType = cursor.getInt(indexType);
                        // format time
                        @SuppressLint("SimpleDateFormat")
                        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
                        Date d = new Date(longDate);
                        String strDate = dateFormat.format(d);
                      
                        // format the content
                        String strType = "";
                        if (intType == 1) {
                            strType = "receive";
                        } else if (intType == 2) {
                            strType = "send";
                        } else {
                            strType = "null";
                        }

                        smsBuilder.append("[ ");
                        smsBuilder.append(strAddress).append(", ");
                        smsBuilder.append(intPerson).append(", ");
                        smsBuilder.append(strBody).append(", ");
                        smsBuilder.append(strDate).append(", ");
                        smsBuilder.append(strType);
                        smsBuilder.append(" ]\n\n");
                    } while (cursor.moveToNext());
                } else {
                    smsBuilder.append("no result!");
                
            }
            smsBuilder.append("getSmsInPhone has executed!");
        } catch (SQLiteException e) {
            e.printStackTrace();
        } finally {
            cursor.close();
        }
        return smsBuilder.toString();
    }

}