小贝子编程

如何获得不同的多个权限接受/拒绝组合的不同结果



我有一个带有注册活动的应用程序。当用户注册时，系统会要求他提供以下两个权限：

  • READ_PHONE_STATE
  • READ_CONTACTS

用户应该能够接受或拒绝两者，或者接受其中一个并拒绝另一个。根据这一点，我希望有 4 个不同的结果 ：

  1. 如果用户允许READ_PHONE_STATE并拒绝READ_CONTACTS则结果应为：register(name, email, password, getMyPhoneNumber(), false);
  2. 如果用户拒绝READ_PHONE_STATE并允许READ_CONTACTS则结果应为：register(name, email, password, "", true);
  3. 如果用户同时拒绝，则结果应为：register(name, email, password, "", false);
  4. 如果用户同时允许两者，则结果应为：register(name, email, password, getMyPhoneNumber(), true);

一段时间以来，我一直在尝试找到一种允许这些组合的解决方案，尝试这个，这个，这个，这个，这个等等，但我找不到可行的解决方案。

这是我原来的注册活动：

public class RegisterActivity extends AppCompatActivity {
private static final String TAG = "RegisterActivity";
EditText nameText, emailText, passwordText;
Button registerButton;
TextView loginLink;
CheckBox checkBoxShowPassword;
private SessionManager session;
private SQLiteHandler db;
private static final int MY_PERMISSIONS_REQUEST_READ_CONTACTS = 0;
RegisterActivity registerActivity = RegisterActivity.this;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
nameText = findViewById(R.id.input_name);
emailText = findViewById(R.id.input_email);
passwordText = findViewById(R.id.input_password);
registerButton = findViewById(R.id.btn_register);
loginLink = findViewById(R.id.link_login);
session = new SessionManager(getApplicationContext());
db = new SQLiteHandler(getApplicationContext());
if (session.isLoggedIn()) {
Intent intent = new Intent(RegisterActivity.this, MainActivity.class);
startActivity(intent);
finish();
}
registerButton.setOnClickListener(v -> {
String name = nameText.getText().toString().trim();
String email = emailText.getText().toString().trim();
String password = passwordText.getText().toString().trim();
String phone = "";
if (ContextCompat.checkSelfPermission(registerActivity, Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(registerActivity, Manifest.permission.READ_CONTACTS)) {
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
register(name, email, password, phone, false);
} else {
Toast.makeText(getApplicationContext(), R.string.please_enter_credentials, Toast.LENGTH_LONG).show();
}
} else {
ActivityCompat.requestPermissions(registerActivity, new String[]{Manifest.permission.READ_CONTACTS}, MY_PERMISSIONS_REQUEST_READ_CONTACTS);
}
} else {
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
register(name, email, password, phone, true);
} else {
Toast.makeText(getApplicationContext(), R.string.please_enter_credentials, Toast.LENGTH_LONG).show();
}
}
});
loginLink.setOnClickListener(v -> {
finish();
});
checkBoxShowPassword = findViewById(R.id.checkBoxShowPassword);
checkBoxShowPassword.setOnCheckedChangeListener((buttonView, isChecked) -> {
if (!isChecked) {               passwordText.setTransformationMethod(PasswordTransformationMethod.getInstance());
} else {                passwordText.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
}
});
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
String email = emailText.getText().toString().trim();
String password = passwordText.getText().toString().trim();
String name = nameText.getText().toString().trim();
String phone = "";
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_READ_CONTACTS: {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
register(name, email, password, phone, true);
} else {
Toast.makeText(getApplicationContext(), R.string.please_enter_credentials, Toast.LENGTH_LONG).show();
}
} else {
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
register(name, email, password, phone, false);
} else {
Toast.makeText(getApplicationContext(), R.string.please_enter_credentials, Toast.LENGTH_LONG).show();
}
}
}
}
}
public void register(final String name, final String email, final String password, final String phone, Boolean isGranted) {
Log.d(TAG, "Login");
if (!validate()) {
onRegisterFailed();
return;
}
registerButton.setEnabled(true);
String tag_string_req = "req_login";
final ProgressDialog progressDialog = new ProgressDialog(RegisterActivity.this,
R.style.AppTheme_Dark_Dialog);
progressDialog.setIndeterminate(true);
progressDialog.setMessage(getString(R.string.authenticating));
progressDialog.show();
ApiInterface apiService =
ApiClient.getClient().create(ApiInterface.class);
progressDialog.dismiss();
Call<ContactResponse> call = apiService.register(name, email, password, phone);
call.enqueue(new Callback<ContactResponse>() {
@Override
public void onResponse(Call<ContactResponse> call, retrofit2.Response<ContactResponse> response) {
if (response.body().getError()) {
String message = response.body().getErrorMessage();
onRegisterFailed(message);
return;
}
final Contact contact = response.body().getResults();
if (contact != null) {
session.setLogin(true);
db.addUser(contact.getUserName(), contact.getEmail(), contact.getUserId(), contact.getCreatedAt(), contact.getAbout(),
contact.getThumbnailUrl(), contact.getPhone());
Intent intent = new Intent(RegisterActivity.this,
MainActivity.class);
startActivity(intent);
finish();
onRegisterSuccess();
if (isGranted) {
updateContacts();
}
} else {
onRegisterFailed();
}
}
@Override
public void onFailure(Call<ContactResponse> call, Throwable t) {
// Log error here since request failed
Log.e(TAG, t.toString());
onRegisterFailed();
}
});
}
public void userExists(final String phone) {
}
public void onRegisterSuccess() {
registerButton.setEnabled(true);
setResult(RESULT_OK, null);
finish();
}
public void onRegisterFailed() {
Toast.makeText(getBaseContext(), R.string.registration_failed, Toast.LENGTH_LONG).show();
registerButton.setEnabled(true);
}
public void onRegisterFailed(String message) {
Toast.makeText(getBaseContext(), message, Toast.LENGTH_LONG).show();
registerButton.setEnabled(true);
}
public boolean validate() {
boolean valid = true;
String name = nameText.getText().toString();
String email = emailText.getText().toString();
String password = passwordText.getText().toString();
if (name.isEmpty() || name.length() < 3) {
nameText.setError(getString(R.string.enter_3_chars));
valid = false;
} else {
nameText.setError(null);
}
if (email.isEmpty() || !android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches()) {
emailText.setError(getString(R.string.enter_valid_email));
valid = false;
} else {
emailText.setError(null);
}
if (password.isEmpty() || password.length() < 4 || password.length() > 20) {
passwordText.setError(getString(R.string.enter_4_20_char));
valid = false;
} else {
passwordText.setError(null);
}
return valid;
}
private String getMyPhoneNumber() {
TelephonyManager tMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
String simCountry = null;
if (tMgr != null) {
simCountry = tMgr.getSimCountryIso().toUpperCase();
}
if (tMgr != null) {
String simOperatorCode = tMgr.getSimOperator();
}
if (tMgr != null) {
String simOperatorName = tMgr.getSimOperatorName();
}
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
}
String simSerial = tMgr.getSimSerialNumber();
String MyPhoneNumber = "0000000000";
try {
MyPhoneNumber = tMgr.getLine1Number();
} catch (NullPointerException ex) {
}
if (MyPhoneNumber == null || MyPhoneNumber.equals("")) {
return "";
}
PhoneNumberUtil phoneUtil = PhoneNumberUtil.getInstance();
Phonenumber.PhoneNumber countryNumberProto = null;
try {
countryNumberProto = phoneUtil.parse(MyPhoneNumber, simCountry);
} catch (NumberParseException e) {
System.err.println(getString(R.string.numberparseexception_thrown) + e.toString());
}
return phoneUtil.format(countryNumberProto, PhoneNumberUtil.PhoneNumberFormat.E164);
}
public void updateContacts() {
String[] PROJECTION = new String[]{
ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Phone.NUMBER
};
Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, PROJECTION, null, null, null);
HashMap<String, String> user = db.getUserDetails();
String userId = user.get("uid");
if (phones != null) {
while (phones.moveToNext()) {
if (phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER) != -1) {
final String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
ApiInterface apiService =
ApiClient.getClient().create(ApiInterface.class);
Call<ContactsResponse> call = apiService.contactExists(phoneNumber, userId);
call.enqueue(new Callback<ContactsResponse>() {
@Override
public void onResponse(Call<ContactsResponse> call, retrofit2.Response<ContactsResponse> response) {
Log.e(TAG, "abc");
}
@Override
public void onFailure(Call<ContactsResponse> call, Throwable t) {
Log.e(TAG, t.toString());
}
});
}
}
}
if (phones != null) {
phones.close();
}
}
}

这是我基于此示例尝试的解决方案之一(从上面编辑了注册活动)，但除非我同时接受两者，否则它不起作用，如果我拒绝其中任何一个或两个，我将无法注册。我编辑的注册活动现在看起来像这样：

registerButton.setOnClickListener(v -> {
RequestMultiplePermission();
});
loginLink.setOnClickListener(v -> {
finish();
});
checkBoxShowPassword = findViewById(R.id.checkBoxShowPassword);
checkBoxShowPassword.setOnCheckedChangeListener((buttonView, isChecked) -> {
if (!isChecked) {
passwordText.setTransformationMethod(PasswordTransformationMethod.getInstance());
} else {
passwordText.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
}
});
}
private void RequestMultiplePermission() {
ActivityCompat.requestPermissions(registerActivity, new String[]
{
Manifest.permission.READ_PHONE_STATE,
Manifest.permission.READ_CONTACTS
}, RequestPermissionCode);
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case RequestPermissionCode:
String name = nameText.getText().toString().trim();
String email = emailText.getText().toString().trim();
String password = passwordText.getText().toString().trim();
String phone = getMyPhoneNumber();
if (grantResults.length > 0) {
boolean PhoneStatePermission = grantResults[0] == PackageManager.PERMISSION_GRANTED;
boolean ContactsPermission = grantResults[1] == PackageManager.PERMISSION_GRANTED;
if (PhoneStatePermission && ContactsPermission) {
register(name, email, password, phone, true);
} else if (!PhoneStatePermission && ContactsPermission) {
register(name, email, password, "", true);
} else if (!ContactsPermission && PhoneStatePermission) {
register(name, email, password, phone, false);
} else {
register(name, email, password, "", false);
}
}
break;
}
}
public boolean CheckingPermissionIsEnabledOrNot() {
int FirstPermissionResult = ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_PHONE_STATE);
int SecondPermissionResult = ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_CONTACTS);
return FirstPermissionResult == PackageManager.PERMISSION_GRANTED &&
SecondPermissionResult == PackageManager.PERMISSION_GRANTED;
}
private String getMyPhoneNumber() {
TelephonyManager tMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
String simCountry = null;
if (tMgr != null) {
simCountry = tMgr.getSimCountryIso().toUpperCase();
}
if (tMgr != null) {
String simOperatorCode = tMgr.getSimOperator();
}
if (tMgr != null) {
String simOperatorName = tMgr.getSimOperatorName();
}
RequestMultiplePermission();
...

返回允许和拒绝的组合权限的结果的最佳方法是什么。

我找到了一个解决方案：

// define global variable for contacts permission
private static Boolean contactsGranted = false;
...
registerButton.setOnClickListener(v -> {
String name = nameText.getText().toString().trim();
String email = emailText.getText().toString().trim();
String password = passwordText.getText().toString().trim();
});
...
private void CheckContacts(String name, String email, String password) {
if (ContextCompat.checkSelfPermission(registerActivity, Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(registerActivity, Manifest.permission.READ_CONTACTS)) {
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
// contacts permission is not granted, check phone permission
contactsGranted = false;
CheckPhone(name, email, password);
} else {
Toast.makeText(getApplicationContext(), R.string.please_enter_credentials, Toast.LENGTH_LONG).show();
}
} else {
ActivityCompat.requestPermissions(registerActivity, new String[]{Manifest.permission.READ_CONTACTS}, MY_PERMISSIONS_REQUEST_READ_CONTACTS);
}
} else {
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
// contacts permission is granted, check phone permission
contactsGranted = true;
CheckPhone(name, email, password);
} else {
Toast.makeText(getApplicationContext(), R.string.please_enter_credentials, Toast.LENGTH_LONG).show();
}
}
}
private void CheckPhone(String name, String email, String password) {
if (ContextCompat.checkSelfPermission(registerActivity, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(registerActivity, Manifest.permission.READ_PHONE_STATE)) {
// phone permission is not granted, call register and pass empty phone string
register(name, email, password, "");
} else {
ActivityCompat.requestPermissions(registerActivity, new String[]{Manifest.permission.READ_PHONE_STATE}, MY_PERMISSIONS_REQUEST_READ_PHONE);
}
} else {
// phone permission is granted, call register and pass empty getMyPhoneNumber
register(name, email, password, getMyPhoneNumber());
}
}
...
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
String email = emailText.getText().toString().trim();
String password = passwordText.getText().toString().trim();
String name = nameText.getText().toString().trim();
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_READ_CONTACTS:
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay! Do the
// contacts-related task you need to do.
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
// contacts permission is granted, check phone permission
contactsGranted = true;
CheckPhone(name, email, password);
} else {
// Prompt user to enter credentials
Toast.makeText(getApplicationContext(), R.string.please_enter_credentials, Toast.LENGTH_LONG).show();
// permission denied, boo! Disable the
// functionality that depends on this
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
// contacts permission is not granted, check phone permission
contactsGranted = false;
CheckPhone(name, email, password);
} else {
// Prompt user to enter credentials
Toast.makeText(getApplicationContext(), R.string.please_enter_credentials, Toast.LENGTH_LONG).show();
}
}
break;
case MY_PERMISSIONS_REQUEST_READ_PHONE:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// phone permission is granted, call register and pass empty getMyPhoneNumber
register(name, email, password, getMyPhoneNumber());
} else {
// phone permission is not granted, call register and pass empty phone string
register(name, email, password, "");
}
break;
}
}
...
// Register
public void register(final String name, final String email, final String password, final String phone) {
...
if (contactsGranted) {
updateContacts();
}

希望它对其他人有所帮助。

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