'2017/11/19'에 해당되는 글 1건

아래 그림 순서대로 진행하면 된다.

 apply plugin: 'com.android.application'

android {
    compileSdkVersion 23

    defaultConfig {
        applicationId "com.tistory.link2me.pdologin"
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:23.4.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.android.support:recyclerview-v7:24.2.0' // ListView 개선 버전
    compile "com.android.support:cardview-v7:24.2.0"
    compile 'com.squareup.okhttp3:okhttp:3.9.0'
    compile 'com.squareup.picasso:picasso:2.5.2' // 이미지 라이브러리
    compile 'com.google.code.gson:gson:2.8.2'   
}

Intro Activity 추가

위 그림에서 3번은 생략하면 된다.

테스트삼아 선택을 해봤는데 필요하지 않은 기능이다.

Login Activity 추가

위 그림과 같은 과정으로 추가를 한다.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/bg_login"
    android:gravity="center"
    android:orientation="vertical"
    android:padding="10dp" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="vertical"
        android:paddingLeft="20dp"
        android:paddingRight="20dp" >

        <EditText
            android:id="@+id/login_id_edit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dp"
            android:background="@color/white"
            android:hint="@string/hint_email"
            android:inputType="textEmailAddress"
            android:padding="10dp"
            android:singleLine="true"
            android:textColor="@color/input_login"
            android:textColorHint="@color/input_login_hint" />

        <EditText
            android:id="@+id/login_pw_edit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dp"
            android:background="@color/white"
            android:hint="@string/hint_password"
            android:inputType="textPassword"
            android:padding="10dp"
            android:singleLine="true"
            android:textColor="@color/input_login"
            android:textColorHint="@color/input_login_hint" />

        <Button
            android:id="@+id/login_btn"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dip"
            android:background="@color/btn_login_bg"
            android:text="@string/btn_login"
            android:textColor="@color/btn_login" />

        <CheckBox
            android:id="@+id/autologin"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginTop="5dip"
            android:text="자동 로그인"
            android:textColor="#000000"
            android:textSize="14sp"
            android:textStyle="bold" />

        <!-- Link to Login Screen -->
        <Button
            android:id="@+id/btnRegisterScreen"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="30dip"
            android:background="@null"
            android:text="@string/btn_link_to_register"
            android:textAllCaps="false"
            android:textColor="@color/white"
            android:textSize="15dp" />
    </LinearLayout>

</LinearLayout>

package com.tistory.link2me.pdologin;

import android.Manifest;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.telephony.TelephonyManager;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;

import com.tistory.link2me.common.BackPressHandler;
import com.tistory.link2me.common.PHPComm;

import java.net.HttpURLConnection;
import java.util.ArrayList;
import java.util.List;

public class Login extends AppCompatActivity {
    String getDeviceID; // 스마트기기의 장치 고유값
    EditText etId;
    EditText etPw;

    String userID;
    String userPW;
    CheckBox autologin;
    Boolean loginChecked;
    String idx;
    public SharedPreferences settings;
    private BackPressHandler backPressHandler;

    Context mContext;

    // 멀티 퍼미션 지정
    private String[] permissions = {
            Manifest.permission.READ_PHONE_STATE,
            Manifest.permission.CALL_PHONE, // 전화걸기 및 관리
            Manifest.permission.WRITE_CONTACTS, // 주소록 액세스 권한
            Manifest.permission.WRITE_EXTERNAL_STORAGE // 기기, 사진, 미디어, 파일 엑세스 권한
    };
    private static final int MULTIPLE_PERMISSIONS = 101;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        mContext = this.getBaseContext();
        backPressHandler = new BackPressHandler(this); // 뒤로 가기 버튼 이벤트

        if (Build.VERSION.SDK_INT >= 23) { // 안드로이드 6.0 이상일 경우 퍼미션 체크
            checkPermissions();
        }

        // 네트워크 연결상태 체크
        if(NetworkConnection() == false){
            NotConnected_showAlert();
        }

        etId = (EditText) findViewById(R.id.login_id_edit);
        etPw = (EditText) findViewById(R.id.login_pw_edit);
        autologin = (CheckBox) findViewById(R.id.autologin);

        settings = getSharedPreferences("settings", Activity.MODE_PRIVATE);
        loginChecked = settings.getBoolean("LoginChecked", false);
        if (loginChecked) {
            etId.setText(settings.getString("userID", ""));
            etPw.setText(settings.getString("userPW", ""));
            autologin.setChecked(true);
        }

        if(!settings.getString("userID", "").equals("")) etPw.requestFocus();

        Button submit = (Button) findViewById(R.id.login_btn);
        submit.setOnClickListener(new Button.OnClickListener(){
            @Override
            public void onClick(View view) {
                userID = etId.getText().toString().trim();
                userPW = etPw.getText().toString().trim();

                if(userID != null && !userID.isEmpty() && userPW != null && !userPW.isEmpty()){
                    login(userID, userPW);
                }
            }
        });

    }

    private void login(String loginID, String loginPW){
        // 단말기의 ID 정보를 얻기 위해서는 READ_PHONE_STATE 권한이 필요
        TelephonyManager mTelephony = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {

        }
        if (mTelephony.getDeviceId() != null) {
            getDeviceID = mTelephony.getDeviceId();  // 스마트폰 기기 정보
        } else {
            getDeviceID = Settings.Secure.getString(getApplicationContext().getContentResolver(), Settings.Secure.ANDROID_ID);
        }

        // 전달할 인자들
        Uri.Builder builder = new Uri.Builder()
                .appendQueryParameter("userID", loginID)
                .appendQueryParameter("userPW", loginPW)
                .appendQueryParameter("deviceID", getDeviceID);
        String urlParameters = builder.build().getEncodedQuery();
        new getJSONData().execute(Value.IPADDRESS + "/loginChk.php", urlParameters);
    }

    private class getJSONData extends AsyncTask<String, Void, String> {
        ProgressDialog pdLoading = new ProgressDialog(Login.this);
        HttpURLConnection conn;

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            //this method will be running on UI thread
            pdLoading.setMessage("\tValidating user...");
            pdLoading.setCancelable(false);
            pdLoading.show();
        }

        @Override
        protected String doInBackground(String... params) {
            try {
                return PHPComm.getJson(params[0],params[1]);
            } catch (Exception e) {
                return new String("Exception: " + e.getMessage());
            }
        }

        protected void onPostExecute(String result){
            pdLoading.dismiss();
            showJSONResult(result);
        }
    }

    protected void showJSONResult(String result) {
        if(Integer.parseInt(result) > 0){ // 로그인 정보 일치하면 idx 값 받음
            idx = result;
            AutoLoginChk(); // 정보 저장
            Toast.makeText(Login.this,"로그인 성공", Toast.LENGTH_SHORT).show();
            startActivity(new Intent(getApplication(), MainActivity.class));
            finish(); // 현재 Activity 를 없애줌
        } else if(result.equalsIgnoreCase("-1")){ // 등록된 단말기와 불일치
            deviceDismatch_showAlert();
        } else if (result.equalsIgnoreCase("0")) {
            showAlert();
        } else {
            Toast.makeText(Login.this, "서버로부터 정보가 잘못 전송되었습니다", Toast.LENGTH_SHORT).show();
        }
    }

    private boolean checkPermissions() {
        int result;
        List<String> permissionList = new ArrayList<>();
        for (String pm : permissions) {
            result = ContextCompat.checkSelfPermission(this, pm);
            if (result != PackageManager.PERMISSION_GRANTED) {
                permissionList.add(pm);
            }
        }
        if (!permissionList.isEmpty()) {
            ActivityCompat.requestPermissions(this, permissionList.toArray(new String[permissionList.size()]), MULTIPLE_PERMISSIONS);
            return false;
        }
        return true;
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode) {
            case MULTIPLE_PERMISSIONS: {
                if (grantResults.length > 0) {
                    for (int i = 0; i < permissions.length; i++) {
                        if (permissions[i].equals(this.permissions[i])) {
                            if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
                                showToast_PermissionDeny();
                            }
                        }
                    }
                } else {
                    showToast_PermissionDeny();
                }
                return;
            }
        }

    }

    private void showToast_PermissionDeny() {
        Toast.makeText(this, "권한 요청에 동의 해주셔야 이용 가능합니다. 설정에서 권한 허용 하시기 바랍니다.", Toast.LENGTH_SHORT).show();
        finish();
    }

    public void onStop(){
        // 어플리케이션이 화면에서 사라질때
        super.onStop();
        //AutoLoginChk();
    }

    private void AutoLoginChk(){
        // 자동 로그인이 체크되어 있고, 로그인에 성공했으면 폰에 자동로그인 정보 저장
        if (autologin.isChecked()) {
            settings = getSharedPreferences("settings",Activity.MODE_PRIVATE);
            SharedPreferences.Editor editor = settings.edit();

            editor.putString("userID", userID);
            editor.putString("userPW", userPW);
            editor.putBoolean("LoginChecked", true);
            editor.putString("idx", idx);

            editor.commit();
        } else {
            // 자동 로그인 체크가 해제되면 폰에 저장된 정보 모두 삭제
            settings = getSharedPreferences("settings",    Activity.MODE_PRIVATE);
            SharedPreferences.Editor editor = settings.edit();
            editor.clear(); // 모든 정보 삭제
            editor.commit();
        }
    }

    public void deviceDismatch_showAlert(){
        AlertDialog.Builder builder = new AlertDialog.Builder(Login.this);
        builder.setTitle("등록단말 불일치");
        builder.setMessage("최초 등록된 단말기가 아닙니다.\n" + "관리자에게 문의하여 단말기 변경신청을 하시기 바랍니다.")
                .setCancelable(false)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        dialog.dismiss();
                    }
                });
        AlertDialog alert = builder.create();
        alert.show();
    }

    public void showAlert(){
        AlertDialog.Builder builder = new AlertDialog.Builder(Login.this);
        builder.setTitle("로그인 에러");
        builder.setMessage("로그인 정보가 일치하지 않습니다.")
                .setCancelable(false)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        dialog.dismiss();
                    }
                });
        AlertDialog alert = builder.create();
        alert.show();
    }

    private void NotConnected_showAlert() {
        AlertDialog.Builder builder = new AlertDialog.Builder(Login.this);
        builder.setTitle("네트워크 연결 오류");
        builder.setMessage("사용 가능한 무선네트워크가 없습니다.\n" + "먼저 무선네트워크 연결상태를 확인해 주세요.")
                .setCancelable(false)
                .setPositiveButton("확인", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        finish(); // exit
                        //application 프로세스를 강제 종료
                        android.os.Process.killProcess(android.os.Process.myPid() );
                    }
                });
        AlertDialog alert = builder.create();
        alert.show();

    }

    private boolean NetworkConnection() {
        int[] networkTypes = ;
        try {
            ConnectivityManager manager = (ConnectivityManager) getSystemService (Context.CONNECTIVITY_SERVICE);
            for (int networkType : networkTypes) {
                NetworkInfo activeNetwork = manager.getActiveNetworkInfo();
                if(activeNetwork != null && activeNetwork.getType() == networkType){
                    return true;
                }
            }
        } catch (Exception e) {
            return false;
        }
        return false;
    }

    @Override
    public void onBackPressed() {
        backPressHandler.onBackPressed();
    }

}