手机获取存储的邮箱

requestPermission();



    }
    public static final int GRT_ACCOUNT_REQ_CODE = 123;
    public void requestPermission() {
        if (ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.GET_ACCOUNTS) != PackageManager.PERMISSION_GRANTED) {

            if (ActivityCompat.shouldShowRequestPermissionRationale(getActivity(), Manifest.permission.GET_ACCOUNTS)) {
                requestPermissions(new String[]{Manifest.permission.GET_ACCOUNTS}, GRT_ACCOUNT_REQ_CODE);
                Toast.makeText(getActivity(), R.string.applock_auto_email, Toast.LENGTH_SHORT).show();
            } else {
                requestPermissions(new String[]{Manifest.permission.GET_ACCOUNTS}, GRT_ACCOUNT_REQ_CODE);
            }
        }else{
            setAutoEmail();
        }
    }
    public void setAutoEmail(){
        try {
            AccountManager accountManager = AccountManager.get(getActivity());
            Account[] accounts = accountManager.getAccounts();
            for (int i = 0; i                 if (Patterns.EMAIL_ADDRESS.matcher(accounts[i].name).matches()) {
                    mEtConfirmEmailAddress.setText(accounts[i].name);
                    mEtEmailAddress.setText(accounts[i].name);
                    return;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

public static final Pattern EMAIL_ADDRESS
        = Pattern.compile(
            "[a-zA-Z0-9\+\.\_\%\-\+]{1,256}" +
            "\@" +
            "[a-zA-Z0-9][a-zA-Z0-9\-]{0,64}" +
            "(" +
                "\." +
                "[a-zA-Z0-9][a-zA-Z0-9\-]{0,25}" +
            ")+"
        );