初學Android studio 需要做一個功能，獲取簡訊內容輸出到顯示屏上。

使用Android studio版本：3.2  JDK版本： jdk1.8.0_151  

首先在清單檔案新增許可權，獲取簡訊讀寫許可權

    <uses-permission android:name="android.permission.READ_SMS"/>
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.SEND_SMS"/>
 

然後是編寫佈局檔案

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="readSMS"
        android:text="讀取手機簡訊"
        />

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    </ListView>

</android.support.constraint.ConstraintLayout>
 

JAVA程式碼

/**
 * @author [email protected] 
 */

public class MainActivity extends AppCompatActivity {

    private             ListView                  mListView;
    private             SimpleAdapter             sa;
    private             List<Map<String, Object>> data;
    public static final int                       REQ_CODE_CONTACT = 1;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initView();

    }

    private void initView() {
        //得到ListView
        mListView = (ListView) findViewById(R.id.listView);
        data = new ArrayList<Map<String, Object>>();
        //配置適配置器S
        sa = new SimpleAdapter(this, data, android.R.layout.simple_list_item_2,
                new String[]{"names", "message"}, new int[]{android.R.id.text1,
                android.R.id.text2});
        mListView.setAdapter(sa);
    }

    /**
     * 檢查申請簡訊許可權
     */
    private void checkSMSPermission() {
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_SMS)
                != PackageManager.PERMISSION_GRANTED) {
            //未獲取到讀取簡訊許可權

            //向系統申請許可權
            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.READ_SMS}, REQ_CODE_CONTACT);
        } else {
            query();
        }
    }

    /**
     * 點選讀取簡訊
     * @param view
     */
    public void readSMS(View view) {
        checkSMSPermission();

    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        //判斷使用者是否，同意 獲取簡訊授權
        if (requestCode == REQ_CODE_CONTACT && grantResults.length > 0
                && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            //獲取到讀取簡訊許可權
            query();
        } else {
            Toast.makeText(this, "未獲取到簡訊許可權", Toast.LENGTH_SHORT).show();
        }
    }

    private void query() {

        //讀取所有簡訊
        Uri uri = Uri.parse("content://sms/");
        ContentResolver resolver = getContentResolver();
        Cursor cursor = resolver.query(uri, new String[]{"_id", "address", "body", "date", "type"}, null, null, null);
        if (cursor != null && cursor.getCount() > 0) {
            int _id;
            String address;
            String body;
            String date;
            int type;
            while (cursor.moveToNext()) {
                Map<String, Object> map = new HashMap<String, Object>();
                _id = cursor.getInt(0);
                address = cursor.getString(1);
                body = cursor.getString(2);
                date = cursor.getString(3);
                type = cursor.getInt(4);
                map.put("names", body);

                Log.i("test", "_id=" + _id + " address=" + address + " body=" + body + " date=" + date + " type=" + type);
                data.add(map);
                //通知介面卡發生改變
                sa.notifyDataSetChanged();
            }
        }
    }
}
 

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