基于SQLite的Android登錄APP
更新時(shí)間：2021年01月27日 10:54:01 作者：呱呱花
這篇文章主要為大家詳細(xì)介紹了基于SQLite的Android登錄APP，文中示例代碼介紹的非常詳細(xì)，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下
基于SQLite的Android登錄APP
該登錄APP主要包括三個(gè)模塊：
1、登錄：用戶選擇登錄方式、登錄身份，輸入賬號(hào)密碼，完成登錄。
2、忘記密碼：用戶輸入新密碼及驗(yàn)證碼修改登錄密碼。
3、個(gè)人信息：用戶完成登錄后設(shè)置個(gè)人信息并顯示。
使用控件：
1、單選按鈕RadioButton：區(qū)分是密碼登錄還是驗(yàn)證碼登錄。
2、下拉框Spinner：區(qū)分是個(gè)人用戶還是公司用戶。
3、編輯框EditText：輸入手機(jī)號(hào)和密碼（或驗(yàn)證碼）。
4、復(fù)選框CheckBox：判斷是否記住密碼。
5、相對(duì)布局RelativeLayout：界面的整體布局，方便將各個(gè)控件按照相對(duì)位置擺放。
6、框架布局FrameLayout：在框架布局中后面添加的子視圖會(huì)把之前的子視圖覆蓋掉，一般用于需要重疊顯示的場(chǎng)合。用于實(shí)現(xiàn)忘記密碼按鈕和密碼輸入框的疊加。
采用的存儲(chǔ)方式
1、共享參數(shù)SharedPreferences：
是Android的一個(gè)輕量級(jí)存儲(chǔ)工具，采用的存儲(chǔ)結(jié)構(gòu)是Key-Value的鍵值對(duì)方式，類似于Java的Properties類，都是把Key-Value的鍵值對(duì)保存在配置文件中，不同的是Properties的文件內(nèi)容是Key=Value的形式，而SharedPreferences的存儲(chǔ)介質(zhì)是符合XML規(guī)范的配置文件。本案例中用于保存用戶的賬號(hào)和密碼。
2、數(shù)據(jù)庫(kù)SQLite：
是一個(gè)小巧的嵌入式數(shù)據(jù)庫(kù)。本案例中用于存儲(chǔ)用戶的個(gè)人信息。
成果展示：
界面設(shè)計(jì)：
1. 登錄界面
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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=".LoginActivity" android:paddingTop="10dp" android:padding="8dp"> <RadioGroup android:id="@+id/rg_login_way" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:layout_marginTop="20dp"> <RadioButton android:id="@+id/rb_password" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="密碼登錄" android:textSize="25sp" /> <RadioButton android:id="@+id/rb_checkcode" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="驗(yàn)證碼登錄" android:layout_marginLeft="50dp" android:textSize="25sp" /> </RadioGroup> <TextView android:id="@+id/tv_shenfen" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="我是：" android:layout_below="@+id/rg_login_way" android:textSize="25sp" android:layout_marginTop="40dp" android:textColor="@color/black" android:layout_marginLeft="30dp" android:layout_alignRight="@+id/tv_phonenum"/> <Spinner android:id="@+id/sp_shenfen" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_toRightOf="@+id/tv_shenfen" android:layout_alignBottom="@+id/tv_shenfen" android:spinnerMode="dialog"/> <TextView android:id="@+id/tv_phonenum" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/tv_shenfen" android:text="手機(jī)號(hào)碼：" android:textSize="25sp" android:textColor="@color/black" android:layout_marginTop="40dp"/> <EditText android:id="@+id/et_phone" android:layout_width="match_parent" android:layout_height="50dp" android:layout_alignBaseline="@id/tv_phonenum" android:layout_toRightOf="@+id/tv_phonenum" android:background="@drawable/eb_selector" android:textSize="25sp" android:hint="請(qǐng)輸入手機(jī)號(hào)碼" android:inputType="number" /> <TextView android:id="@+id/tv_psw" android:layout_width="wrap_content" android:layout_height="40dp" android:text="登錄密碼：" android:layout_below="@id/tv_phonenum" android:textSize="25sp" android:layout_marginTop="40dp" android:textColor="@color/black"/> <FrameLayout android:id="@+id/fm_psw" android:layout_width="match_parent" android:layout_height="50dp" android:layout_toRightOf="@id/tv_psw" android:layout_alignBottom="@+id/tv_psw" android:layout_alignLeft="@+id/et_phone"> <EditText android:id="@+id/et_psw" android:layout_width="match_parent" android:layout_height="match_parent" android:hint="請(qǐng)輸入密碼" android:textSize="25sp" android:background="@drawable/eb_selector" /> <Button android:id="@+id/btn_pswforget" android:layout_width="wrap_content" android:layout_height="match_parent" android:text="忘記密碼" android:textSize="25sp" android:background="@color/darkgray" android:padding="10dp" android:layout_gravity="end"/> </FrameLayout> <CheckBox android:id="@+id/cb_pswrmb" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/tv_psw" android:text="記住密碼" android:textSize="25sp" android:layout_marginTop="30dp"/> <Button android:id="@+id/btn_login" android:layout_width="match_parent" android:layout_height="60dp" android:layout_below="@id/cb_pswrmb" android:text="登錄" android:textSize="25sp" android:layout_marginTop="30dp" android:background="@color/darkgray"/> </RelativeLayout>
2.忘記密碼界面
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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" android:padding="8dp" android:paddingTop="10dp" tools:context=".PswForgetActivity"> <TextView android:id="@+id/tv_newpsw" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="輸入新密碼：" android:textColor="@color/black" android:textSize="25sp" android:layout_marginTop="20dp"/> <EditText android:id="@+id/et_newpsw" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_toRightOf="@+id/tv_newpsw" android:background="@drawable/eb_selector" android:layout_alignBaseline="@+id/tv_newpsw" android:hint="請(qǐng)輸入新密碼" android:textSize="25sp" android:inputType="textPassword" /> <TextView android:id="@+id/tv_chknewpsw" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="40dp" android:text="確認(rèn)新密碼：" android:layout_below="@+id/tv_newpsw" android:textSize="25sp" android:textColor="@color/black"/> <EditText android:id="@+id/et_chknewpsw" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_toRightOf="@+id/tv_chknewpsw" android:layout_alignBaseline="@+id/tv_chknewpsw" android:background="@drawable/eb_selector" android:textSize="25sp" android:hint="請(qǐng)?jiān)俅屋斎胄旅艽a" android:inputType="textPassword"/> <TextView android:id="@+id/tv_checkcode" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="驗(yàn)證碼：" android:layout_below="@+id/tv_chknewpsw" android:textSize="25sp" android:textColor="@color/black" android:layout_marginTop="40dp"/> <FrameLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_toRightOf="@+id/tv_checkcode" android:layout_below="@+id/et_chknewpsw" android:layout_marginTop="20dp"> <EditText android:id="@+id/et_checkcode" android:layout_width="match_parent" android:layout_height="match_parent" android:textSize="25sp" android:hint="輸入驗(yàn)證碼" android:inputType="number" android:background="@drawable/eb_selector" android:maxLines="1"/> <Button android:id="@+id/btn_sendcheckcode" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_gravity="right" android:text="獲取驗(yàn)證碼" android:textSize="25sp" android:padding="10dp" android:textColor="@color/black" android:background="@color/darkgray"/> </FrameLayout> <Button android:id="@+id/btn_check" android:layout_width="match_parent" android:layout_height="60dp" android:layout_below="@id/tv_checkcode" android:text="確定" android:textSize="25sp" android:layout_marginTop="30dp" android:background="@color/darkgray" /> </RelativeLayout>
3.個(gè)人信息填寫(xiě)界面
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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=".SharedPreferencesActivity" android:padding="10dp"> <TextView android:id="@+id/tv_name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="姓名：" android:textSize="25sp" android:textColor="@color/black" android:layout_marginTop="20dp"/> <EditText android:id="@+id/et_name" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_toRightOf="@+id/tv_name" android:layout_alignBaseline="@+id/tv_name" android:background="@drawable/eb_selector" android:maxLines="1"/> <TextView android:id="@+id/tv_age" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="年齡：" android:textSize="25sp" android:textColor="@color/black" android:layout_below="@+id/tv_name" android:layout_marginTop="20dp"/> <EditText android:id="@+id/et_age" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_toRightOf="@+id/tv_age" android:layout_alignBaseline="@+id/tv_age" android:background="@drawable/eb_selector" android:maxLines="1" android:inputType="number"/> <TextView android:id="@+id/tv_height" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="身高：" android:textSize="25sp" android:textColor="@color/black" android:layout_below="@+id/tv_age" android:layout_marginTop="20dp"/> <EditText android:id="@+id/et_height" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_toRightOf="@+id/tv_height" android:layout_alignBaseline="@+id/tv_height" android:background="@drawable/eb_selector" android:maxLines="1" android:inputType="number"/> <TextView android:id="@+id/tv_weight" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="體重：" android:textSize="25sp" android:textColor="@color/black" android:layout_below="@+id/tv_height" android:layout_marginTop="20dp"/> <EditText android:id="@+id/et_weight" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_toRightOf="@+id/tv_weight" android:layout_alignBaseline="@+id/tv_weight" android:background="@drawable/eb_selector" android:maxLines="1" android:inputType="number"/> <TextView android:id="@+id/tv_married" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="婚否：" android:layout_below="@+id/tv_weight" android:textSize="25sp" android:textColor="@color/black" android:layout_marginTop="20dp"/> <Spinner android:id="@+id/sp_married" android:layout_width="match_parent" android:layout_height="40dp" android:spinnerMode="dropdown" android:layout_toRightOf="@+id/tv_married" android:layout_alignBottom="@+id/tv_married"/> <Button android:id="@+id/btn_save" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/tv_married" android:layout_marginTop="20dp" android:background="@drawable/selector" android:text="保存" android:textSize="25sp" android:textColor="@color/black"/> </RelativeLayout>
4.個(gè)人信息顯示界面
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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=".SharedPreferencesActivity2"> <TextView android:id="@+id/tv_show" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/btn_delete" android:textSize="25sp"/> <Button android:id="@+id/btn_delete" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="刪除" android:textSize="25sp"/> </RelativeLayout>
代碼實(shí)現(xiàn)
UserDBHelper
package com.example.helloworld;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import androidx.annotation.Nullable;
import androidx.core.app.NavUtils;
import java.util.ArrayList;
import java.util.Locale;
public class UserDBHelper extends SQLiteOpenHelper {
private static final String TAG = "UserDBHelper";
private static final String DB_NAME = "user.db"; //數(shù)據(jù)庫(kù)名
private static final int DB_VERSION = 1; //數(shù)據(jù)庫(kù)版本
private static UserDBHelper mHelper = null;
private SQLiteDatabase mDB = null;
private static final String TABLE_NAME = "user_info"; //表名
private UserDBHelper(Context context){
super(context,DB_NAME,null,DB_VERSION);
}
private UserDBHelper(Context context,int version){
super(context,DB_NAME,null,version);
}
public static UserDBHelper getInstance(Context context,int version){
if(version > 0 && mHelper == null){
mHelper = new UserDBHelper(context,version);
}else if(mHelper == null){
mHelper = new UserDBHelper(context);
}
return mHelper;
}
public SQLiteDatabase openReadLink(){
if (mDB == null || !mDB.isOpen()){
mDB = mHelper.getReadableDatabase();
}
return mDB;
}
public SQLiteDatabase openWriteLink(){
if (mDB == null || !mDB.isOpen()){
mDB = mHelper.getWritableDatabase();
Log.d(TAG, "openWriteLink: 打開(kāi)了讀數(shù)據(jù)庫(kù)");
}
return mDB;
}
public void closeLink(){
if (mDB != null && mDB.isOpen()){
mDB.close();
mDB = null;
}
}
public String getDBName(){
if(mHelper != null){
return mHelper.getDatabaseName();
}else {
return DB_NAME;
}
}
@Override
public void onCreate(SQLiteDatabase db) {
Log.d(TAG, "onCreate: 創(chuàng)建數(shù)據(jù)庫(kù)");
String drop_sql = "DROP TABLE IF EXISTS " + TABLE_NAME + ";";
db.execSQL(drop_sql);
String create_sql = "CREATE TABLE IF NOT EXISTS " + TABLE_NAME + " ("
+ "_id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,"
+ "name VARCHAR NOT NULL,"
+ "age INTEGER NOT NULL,"
+ "height LONG NOT NULL,"
+ "weight FLOAT NOT NULL,"
+ "married INTEGER NOT NULL,"
+ "update_time VARCHAR NOT NULL,"
+ "phone VARCHAR NOT NULL,"
+ "password VARCHAR NOT NULL"
+ ");";
Log.d(TAG, "create_sql" + create_sql);
db.execSQL(create_sql);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
Log.d(TAG, "onUpgrade oldVersion=" +oldVersion+",newVersion=" + newVersion+"數(shù)據(jù)庫(kù)新舊版本號(hào)");
if (newVersion > 1){
String alter_sql = "ALTER TABLE" + TABLE_NAME + "ADD COLUMN" + "phone VARCHAR;";
Log.d(TAG, "alter_sql:" + alter_sql);
db.execSQL(alter_sql);
alter_sql = "ALTER TABLE" + TABLE_NAME + "ADD COLUMN" + "password VARCHAR;";
Log.d(TAG, "alter_sql:" + alter_sql);
db.execSQL(alter_sql);
}
}
public int delete(String condition){
int count = mDB.delete(TABLE_NAME,condition,null);
return count;
}
public int deleteAll(){
int count = mDB.delete(TABLE_NAME,"1=1",null);
return count;
}
public long insert(UserInfo info){
ArrayList<UserInfo> infoArray = new ArrayList<UserInfo>();
infoArray.add(info);
return insert(infoArray);
}
public ArrayList<UserInfo>query(String condition) {
String sql = String.format(Locale.CHINA,"select rowid,_id,name,age,height,weight,married,update_time," + "phone,password from %s where %s;", TABLE_NAME,condition);
Log.d(TAG, "query sql: " + sql);
ArrayList<UserInfo> infoArray = new ArrayList<UserInfo>();
Cursor cursor = mDB.rawQuery(sql, null);
while (cursor.moveToNext()) {
UserInfo info = new UserInfo();
info.rowid = cursor.getLong(0);
info.xuhao = cursor.getInt(1);
info.name = cursor.getString(2);
info.age = cursor.getInt(3);
info.height = cursor.getLong(4);
info.weight = cursor.getFloat(5);
info.married = (cursor.getInt(6) == 0) ? false : true;
info.update_time = cursor.getString(7);
info.phone = cursor.getString(8);
info.password = cursor.getString(9);
infoArray.add(info);
}
cursor.close();
return infoArray;
}
public long insert(ArrayList<UserInfo> infoArray) {
long result = -1;
for (int i = 0; i < infoArray.size(); i++) {
UserInfo info = infoArray.get(i);
ArrayList<UserInfo> tempArray = new ArrayList<UserInfo>();
if (info.name != null && info.name.length() > 0) {
String condition = String.format("name='%s'", info.name);
tempArray = query(condition);
if (tempArray.size() > 0) {
update(info, condition);
result = tempArray.get(0).rowid;
continue;
}
}
if (info.phone != null && info.phone.length() > 0) {
String condition = String.format("phone='%s'", info.phone);
tempArray = query(condition);
if (tempArray.size() > 0) {
update(info, condition);
result = tempArray.get(0).rowid;
continue;
}
}
Log.d(TAG, "insert: 當(dāng)前版本號(hào)"+mDB.getVersion());
ContentValues cv = new ContentValues();
cv.put("name", info.name);
cv.put("age", info.age);
cv.put("height", info.height);
cv.put("weight", info.weight);
cv.put("married", info.married);
cv.put("update_time", info.update_time);
cv.put("phone", info.phone);
cv.put("password", info.password);
result = mDB.insert(TABLE_NAME, "", cv);
if (result == -1) {
return result;
}
}
return result;
}
public int update(UserInfo info, String condition) {
ContentValues cv = new ContentValues();
cv.put("name", info.name);
cv.put("age", info.age);
cv.put("height", info.height);
cv.put("weight", info.weight);
cv.put("married", info.married);
cv.put("update_time", info.update_time);
cv.put("phone", info.phone);
cv.put("password", info.password);
// 執(zhí)行更新記錄動(dòng)作，該語(yǔ)句返回記錄更新的數(shù)目
return mDB.update(TABLE_NAME, cv, condition, null);
}
public int update(UserInfo info) {
return update(info, "rowid=" + info.rowid);
}
public UserInfo queryByPhone(String phone){
UserInfo info = null;
ArrayList<UserInfo> infoArray = query(String.format("phone=%s",phone));
if (infoArray.size() > 0 ){
info = infoArray.get(0);
}
return info;
}
}
UserInfo
package com.example.helloworld;
public class UserInfo {
public long rowid;
public int xuhao;
public String name;
public int age;
public long height;
public float weight;
public boolean married;
public String update_time;
public String phone;
public String password;
public UserInfo() {
rowid = 0l;
xuhao = 0;
name = "";
age = 0;
height = 0l;
weight = 0.0f;
married = false;
update_time = "";
phone = "";
password = "";
}
}
LoginActivity
package com.example.helloworld;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Rect;
import android.os.Bundle;
import android.text.InputType;
import android.text.method.PasswordTransformationMethod;
import android.text.method.TransformationMethod;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Spinner;
import android.widget.Toast;
import java.net.PasswordAuthentication;
public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
private EditText et_phone;
private RadioButton rb_psw;
private RadioButton rb_checkcode;
private EditText et_psw;
private Button btn_pswforget;
private String mPassword;
private int mRequestcode;
private String mCheckCode;
private int mType;
private String TAG = "huahua";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
rb_psw = findViewById(R.id.rb_password);
rb_checkcode = findViewById(R.id.rb_checkcode);
et_phone = findViewById(R.id.et_phone);
et_psw = findViewById(R.id.et_psw);
CheckBox cb_pswforget = findViewById(R.id.cb_pswrmb);
Button btn_login = findViewById(R.id.btn_login);
btn_pswforget = findViewById(R.id.btn_pswforget);
btn_login.setOnClickListener(this);
btn_pswforget.setOnClickListener(this);
RadioGroup rg = findViewById(R.id.rg_login_way);
mPassword = et_psw.getText().toString();
rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
RadioButton rb = findViewById(checkedId);
Log.i(TAG, "onCheckedChanged: 密碼登錄"+ rb_psw.isChecked());
Log.i(TAG, "onCheckedChanged: 驗(yàn)證碼登錄"+rb_checkcode.isChecked());
if(rb_psw.isChecked()){
et_psw.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD | InputType.TYPE_CLASS_TEXT);
}
}
});
cb_pswforget.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
}
});
ArrayAdapter<String> typeAdapter = new ArrayAdapter<String>(this,R.layout.item_dropdown,typeArray);
typeAdapter.setDropDownViewResource(R.layout.item_dropdown);
Spinner sp_type = findViewById(R.id.sp_shenfen);
sp_type.setAdapter(typeAdapter);
sp_type.setSelection(0);
sp_type.setPrompt("選擇你的登錄身份：");
sp_type.setOnItemSelectedListener(new MyOnItemSeclectedListener());
}
private String[] typeArray = {"個(gè)人用戶","企業(yè)用戶"};
private class MyOnItemSeclectedListener implements AdapterView.OnItemSelectedListener{
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
mType = position;
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == mRequestcode && data != null) {
mPassword = data.getStringExtra("newpsw");
}
}
@Override
protected void onRestart() {
et_psw.setText("");
super.onRestart();
}
@Override
public void onClick(View v) {
String phone = et_phone.getText().toString();
switch (v.getId()){
case R.id.btn_pswforget: {
Log.i(TAG, "onClick: 點(diǎn)擊了忘記密碼");
if (phone == null || phone.length() < 11) {
Toast.makeText(this, "請(qǐng)輸入正確的手機(jī)號(hào)", Toast.LENGTH_SHORT).show();
return;
}
if (rb_psw.isChecked()) {
Log.i(TAG, "onClick: 進(jìn)入忘記密碼界面");
Intent intent = new Intent(this, PswForgetActivity.class);
intent.putExtra("phone", phone);
startActivityForResult(intent, mRequestcode);
} else if (rb_checkcode.isChecked()) {
mCheckCode = String.format("%06d", (int) (Math.random() * 1000000 % 1000000));
Log.i(TAG, "onClick: 發(fā)送驗(yàn)證碼");
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("請(qǐng)記住驗(yàn)證碼！");
builder.setMessage("手機(jī)號(hào)" + phone + "，本次驗(yàn)證碼是：" + mCheckCode + "，請(qǐng)輸入驗(yàn)證碼");
builder.setPositiveButton("確定", null);
AlertDialog alert = builder.create();
alert.show();
}
}
break;
case R.id.btn_login: {
if (phone == null || phone.length() < 11) {
Toast.makeText(this, "請(qǐng)輸入正確的手機(jī)號(hào)！", Toast.LENGTH_SHORT).show();
Log.i(TAG, "onClick: 驗(yàn)證密碼");
return;
}
if (rb_psw.isChecked()) {
if (!et_psw.getText().toString().equals(mPassword) || et_psw.getText().toString().equals("")) {
Toast.makeText(this, "請(qǐng)輸入正確的密碼", Toast.LENGTH_SHORT).show();
return;
} else {
loginSuccess();
}
} else if (rb_checkcode.isChecked()) {
if (!et_psw.getText().toString().equals(mCheckCode)) {
Toast.makeText(this, "請(qǐng)輸入正確的驗(yàn)證碼", Toast.LENGTH_SHORT).show();
return;
} else {
loginSuccess();
}
}
}
}
}
private void loginSuccess(){
String desc = String.format("您的手機(jī)號(hào)碼是%s，類型是%s。恭喜你通過(guò)登錄驗(yàn)證，點(diǎn)擊“確定”按鈕返回上個(gè)頁(yè)面",et_phone.getText().toString(),typeArray[mType]);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("登錄成功");
builder.setMessage(desc);
builder.setPositiveButton("確定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(LoginActivity.this,SharedPreferencesActivity.class);
startActivity(intent);
SharedPreferences sps = getSharedPreferences("Login", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sps.edit();
editor.putString("phone",et_phone.getText().toString());
editor.putString("password",et_psw.getText().toString());
editor.apply();
}
});
builder.setNegativeButton("取消",null);
AlertDialog alert = builder.create();
alert.show();
}
}
PswForgetActivity
package com.example.helloworld;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.text.InputType;
import android.view.View;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.Toast;
public class PswForgetActivity extends AppCompatActivity implements View.OnClickListener {
private EditText et_newpsw;
private EditText et_chknewpsw;
private EditText et_checkcode;
private String mCheckCode;
private String mPhone;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_psw_forget);
et_newpsw = findViewById(R.id.et_newpsw);
et_chknewpsw = findViewById(R.id.et_chknewpsw);
et_checkcode = findViewById(R.id.et_checkcode);
findViewById(R.id.btn_sendcheckcode).setOnClickListener(this);
findViewById(R.id.btn_check).setOnClickListener(this);
mPhone = getIntent().getStringExtra("phone");
et_newpsw.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD | InputType.TYPE_CLASS_TEXT);
et_chknewpsw.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD | InputType.TYPE_CLASS_TEXT);
}
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.btn_sendcheckcode:
if(mPhone == null || mPhone.length() < 11){
Toast.makeText(this,"請(qǐng)輸入正確的手機(jī)號(hào)",Toast.LENGTH_SHORT).show();
return;
}
mCheckCode = String.format("%06d",(int)(Math.random()*1000000%1000000));
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("請(qǐng)記住驗(yàn)證碼");
builder.setMessage("手機(jī)號(hào)"+mPhone+"，本次驗(yàn)證碼是"+mCheckCode+"，請(qǐng)輸入驗(yàn)證碼");
builder.setPositiveButton("確定",null);
AlertDialog alertDialog = builder.create();
alertDialog.show();
case R.id.btn_check:
String newpsw = et_newpsw.getText().toString();
String chknewpsw = et_chknewpsw.getText().toString();
if(newpsw == null || newpsw.length() < 6 || chknewpsw == null || chknewpsw.length() < 6){
Toast.makeText(this,"請(qǐng)輸入正確的新密碼",Toast.LENGTH_SHORT).show();
return;
}else if(!newpsw.equals(chknewpsw)){
Toast.makeText(this,"兩次輸入的新密碼不一致",Toast.LENGTH_SHORT).show();
return;
}else if(!et_checkcode.getText().toString().equals(mCheckCode)){
Toast.makeText(this,"請(qǐng)輸入正確的驗(yàn)證碼",Toast.LENGTH_SHORT).show();
return;
}else {
Toast.makeText(this,"密碼修改成功",Toast.LENGTH_SHORT).show();
Intent intent = new Intent();
intent.putExtra("newpsw",newpsw);
setResult(Activity.RESULT_OK,intent);
finish();
}
}
}
}
InfoWriteActivity
package com.example.helloworld;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
public class InfoWriteActivity extends AppCompatActivity implements View.OnClickListener {
private static final String TAG = "huahua";
private UserDBHelper mHelper;
private EditText et_name;
private EditText et_age;
private EditText et_height;
private EditText et_weight;
private boolean Married = false;
private String phone;
private String password;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_shared_preferences);
et_name = findViewById(R.id.et_name);
et_age = findViewById(R.id.et_age);
et_height = findViewById(R.id.et_height);
et_weight = findViewById(R.id.et_weight);
findViewById(R.id.btn_save).setOnClickListener(this);
SharedPreferences sps = getSharedPreferences("Login",Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sps.edit();
phone = sps.getString("phone","");
password = sps.getString("password","");
ArrayAdapter<String> typeAdapter = new ArrayAdapter<String>(this, R.layout.item_dropdown, typeArray);
typeAdapter.setDropDownViewResource(R.layout.item_dropdown);
Spinner sp_married = findViewById(R.id.sp_married);
sp_married.setAdapter(typeAdapter);
sp_married.setPrompt("請(qǐng)選擇婚姻狀況");
sp_married.setSelection(0);
sp_married.setOnItemSelectedListener(new TypeSelectedListener());
}
private String[] typeArray = {"未婚", "已婚"};
class TypeSelectedListener implements AdapterView.OnItemSelectedListener {
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
Married = (arg2 == 0) ? false : true;
}
public void onNothingSelected(AdapterView<?> arg0) {
}
}
@Override
protected void onStart() {
super.onStart();
SQLiteDatabase mDB = getApplicationContext().openOrCreateDatabase("user.db", Context.MODE_PRIVATE, null);
mHelper = UserDBHelper.getInstance(this, 1);
mHelper.openWriteLink();
}
@Override
protected void onStop() {
super.onStop();
mHelper.closeLink();
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.btn_save) {
String name = et_name.getText().toString();
String age = et_age.getText().toString();
String height = et_height.getText().toString();
String weight = et_weight.getText().toString();
if (name == null || name.length() <= 0) {
showToast("請(qǐng)先填寫(xiě)姓名");
return;
}
if (age == null || age.length() <= 0) {
showToast("請(qǐng)先填寫(xiě)年齡");
return;
}
if (height == null || height.length() <= 0) {
showToast("請(qǐng)先填寫(xiě)身高");
return;
}
if (weight == null || weight.length() <= 0) {
showToast("請(qǐng)先填寫(xiě)體重");
return;
}
UserInfo info = new UserInfo();
info.name = name;
info.age = Integer.parseInt(age);
info.height = Long.parseLong(height);
info.weight = Float.parseFloat(weight);
info.married = Married;
info.phone = phone;
info.password = password;
//info.update_time = DateUtil.getCurDateStr("yyyy-MM-dd HH:mm:ss");
info.update_time = DateUtil.getNowDate(DateUtil.DatePattern.ALL_TIME);
Log.d(TAG, "onClick: 手機(jī)號(hào)" + info.phone+info.password+info.name+info.update_time+info.married);
mHelper.insert(info);
Intent intent = new Intent(InfoWriteActivity.this, InfoReadActivity.class);
startActivity(intent);
showToast("數(shù)據(jù)已寫(xiě)入SQLite數(shù)據(jù)庫(kù)");
}
}
private void showToast(String desc) {
Toast.makeText(this, desc, Toast.LENGTH_SHORT).show();
}
public static void startHome(Context mContext) {
Intent intent = new Intent(mContext, InfoWriteActivity.class);
mContext.startActivity(intent);
}
}
InfoReadActivity
package com.example.helloworld;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
public class InfoWriteActivity extends AppCompatActivity implements View.OnClickListener {
private static final String TAG = "huahua";
private UserDBHelper mHelper;
private EditText et_name;
private EditText et_age;
private EditText et_height;
private EditText et_weight;
private boolean Married = false;
private String phone;
private String password;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_shared_preferences);
et_name = findViewById(R.id.et_name);
et_age = findViewById(R.id.et_age);
et_height = findViewById(R.id.et_height);
et_weight = findViewById(R.id.et_weight);
findViewById(R.id.btn_save).setOnClickListener(this);
SharedPreferences sps = getSharedPreferences("Login",Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sps.edit();
phone = sps.getString("phone","");
password = sps.getString("password","");
ArrayAdapter<String> typeAdapter = new ArrayAdapter<String>(this, R.layout.item_dropdown, typeArray);
typeAdapter.setDropDownViewResource(R.layout.item_dropdown);
Spinner sp_married = findViewById(R.id.sp_married);
sp_married.setAdapter(typeAdapter);
sp_married.setPrompt("請(qǐng)選擇婚姻狀況");
sp_married.setSelection(0);
sp_married.setOnItemSelectedListener(new TypeSelectedListener());
}
private String[] typeArray = {"未婚", "已婚"};
class TypeSelectedListener implements AdapterView.OnItemSelectedListener {
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
Married = (arg2 == 0) ? false : true;
}
public void onNothingSelected(AdapterView<?> arg0) {
}
}
@Override
protected void onStart() {
super.onStart();
SQLiteDatabase mDB = getApplicationContext().openOrCreateDatabase("user.db", Context.MODE_PRIVATE, null);
mHelper = UserDBHelper.getInstance(this, 1);
mHelper.openWriteLink();
}
@Override
protected void onStop() {
super.onStop();
mHelper.closeLink();
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.btn_save) {
String name = et_name.getText().toString();
String age = et_age.getText().toString();
String height = et_height.getText().toString();
String weight = et_weight.getText().toString();
if (name == null || name.length() <= 0) {
showToast("請(qǐng)先填寫(xiě)姓名");
return;
}
if (age == null || age.length() <= 0) {
showToast("請(qǐng)先填寫(xiě)年齡");
return;
}
if (height == null || height.length() <= 0) {
showToast("請(qǐng)先填寫(xiě)身高");
return;
}
if (weight == null || weight.length() <= 0) {
showToast("請(qǐng)先填寫(xiě)體重");
return;
}
UserInfo info = new UserInfo();
info.name = name;
info.age = Integer.parseInt(age);
info.height = Long.parseLong(height);
info.weight = Float.parseFloat(weight);
info.married = Married;
info.phone = phone;
info.password = password;
info.update_time = DateUtil.getNowDate(DateUtil.DatePattern.ALL_TIME);
Log.d(TAG, "onClick: 手機(jī)號(hào)" + info.phone+info.password+info.name+info.update_time+info.married);
mHelper.insert(info);
Intent intent = new Intent(InfoWriteActivity.this, InfoReadActivity.class);
startActivity(intent);
showToast("數(shù)據(jù)已寫(xiě)入SQLite數(shù)據(jù)庫(kù)");
}
}
private void showToast(String desc) {
Toast.makeText(this, desc, Toast.LENGTH_SHORT).show();
}
public static void startHome(Context mContext) {
Intent intent = new Intent(mContext, InfoWriteActivity.class);
mContext.startActivity(intent);
}
}
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。
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