'정보'에 해당되는 글 1건

  1. 2019.10.16 Get contact data 연락처 정보 가져오기

Get contact data 연락처 정보 가져오기

Android 2019. 10. 16. 20:28 |
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You can retrieve the contact data.

연락처 정보를 모두 받아 올 수 있다.


<AndroidManifest.xml>

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    <uses-permission android:name="android.permission.READ_CONTACTS"/>
    <uses-permission android:name="android.permission.WRITE_CONTACTS"/>


<MainActivity.java>

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public class MainActivity extends AppCompatActivity {
 
    private final int MY_PERMISSION_REQUEST_CONTACTS = 1001;
    private final int MY_ACTIVITY_REQUEST_CODE = 2001;
 
    TextView textView;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        String[] permissionRequests = {
                Manifest.permission.READ_CONTACTS,
                Manifest.permission.WRITE_CONTACTS
        };
 
        checkPermissions(permissionRequests);
 
        textView = findViewById(R.id.textView);
 
        Button button = findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                chooseContacts();
            }
        });
    }
 
    public void checkPermissions(String[] permissionRequests) {
        final ArrayList<String> permissionRequestList = new ArrayList<String>();
 
        for (final String request : permissionRequests) {
            if (ContextCompat.checkSelfPermission(this, request) != PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(this, request)) {   // Redundant in this case
                    permissionRequestList.add(request);
                } else {
                    permissionRequestList.add(request);
                }
            }
        }
 
        if (!permissionRequestList.isEmpty()) {
            final String[] results = new String[permissionRequestList.size()];
            permissionRequestList.toArray(results);
 
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle("info");
 
            String msg = "This app won't work properly unless you grant below permissions.";
            for (String str : results)
                msg += ("\n- "+ str);
 
            builder.setMessage(msg);
            builder.setIcon(android.R.drawable.ic_dialog_info);
 
            builder.setNeutralButton("OK", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    ActivityCompat.requestPermissions(MainActivity.this, results, MY_PERMISSION_REQUEST_CONTACTS);
                }
            });
 
            AlertDialog dialog = builder.create();
            dialog.show();
        }
    }
 
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        switch (requestCode) {
            case MY_PERMISSION_REQUEST_CONTACTS: {
                for (int i = 0; i < grantResults.length; i++) {
                    if (grantResults[i] == PackageManager.PERMISSION_GRANTED) {
                        Toast.makeText(this, permissions[i] + " permission granted.", Toast.LENGTH_SHORT).show();
                    } else {
                        Toast.makeText(this, permissions[i] + " permission denied.", Toast.LENGTH_SHORT).show();
                    }
                }
            }
        }
    }
 
    public void chooseContacts() {
        Intent contactPickerIntent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
        startActivityForResult(contactPickerIntent, MY_ACTIVITY_REQUEST_CODE);
    }
 
    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        if (resultCode == RESULT_OK) {
            if (requestCode == MY_ACTIVITY_REQUEST_CODE) {
                try {
                    Uri contactsUri = data.getData();
                    String id = contactsUri.getLastPathSegment();
 
                    getContacts(id);
                } catch (Exception e)
                {
                    e.printStackTrace();
                }
            }
        }
    }
 
    public void getContacts(String id) {
        Cursor cursor;
        String name;
        String phone;
 
        try {
            cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    null,
                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=?",
                    new String[] {id},
                    null);
 
            if (cursor.moveToFirst()) {
                name = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
                phone = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                textView.setText("Name: " + name + '\n' + "Phone: " + phone + '\n');
 
                String columns[] = cursor.getColumnNames();
                for (String column : columns) {
                    int index = cursor.getColumnIndex(column);
                    String columnOutput = ("#" + index + " -> [" + column + "] = " + cursor.getString(index));
                    textView.append('\n' + columnOutput);
                }
                cursor.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}




Run the app.


Choose contact.


Display contact data.


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