登录+注册界面的实现（代码）
16lz
2021-01-23
先看效果图！
话不多说，直接上代码！
//布局文件：activity_login.xml<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:custom="http://schemas.android.com/apk/res-auto" android:layout_width="fill_parent" android:layout_height="fill_parent" android:fitsSystemWindows="true"> <RelativeLayout android:id="@+id/login_layout" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="20dp" android:layout_marginRight="20dp" android:gravity="center"> <FrameLayout android:id="@+id/username_layout" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="55dp" android:gravity="center"> <EditText android:id="@+id/username" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="5dp" android:inputType="number" android:maxLength="20" android:paddingLeft="55dp" android:paddingRight="60dp" android:hint="6位数字账号"/> <ImageView android:layout_width="28dp" android:layout_height="28dp" android:layout_gravity="left|center_vertical" android:layout_marginLeft="8dp" android:layout_marginStart="8dp" android:background="@drawable/login_username" android:visibility="visible" /> <Button android:id="@+id/bt_username_clear" android:layout_width="23dp" android:layout_height="23dp" android:layout_gravity="right|center_vertical" android:layout_marginRight="10dp" android:background="@drawable/login_delete" android:visibility="invisible" /> FrameLayout> <FrameLayout android:id="@+id/usercode_layout" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/username_layout" android:layout_marginTop="6dp" android:gravity="center"> <EditText android:id="@+id/password" android:layout_width="fill_parent" android:layout_height="wrap_content" android:inputType="textPassword" android:maxLength="20" android:paddingLeft="55dp" android:paddingRight="60dp" android:hint="6位密码"/> <ImageView android:layout_width="28dp" android:layout_height="28dp" android:layout_gravity="left|center_vertical" android:layout_marginLeft="7dp" android:layout_marginStart="7dp" android:background="@drawable/login_password" /> <Button android:id="@+id/bt_pwd_clear" android:layout_width="23dp" android:layout_height="23dp" android:layout_gravity="right|center_vertical" android:layout_marginRight="10dp" android:background="@drawable/login_delete" android:visibility="invisible" /> FrameLayout> <Button android:id="@+id/login" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/usercode_layout" android:layout_marginTop="30dp" android:background="#ff336699" android:gravity="center" android:text="登 录" android:textColor="@android:color/white" android:textSize="24dp" /> android:layout_height="@dimen/default_button_height" RelativeLayout> <Button android:id="@+id/register" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:background="#00000000" android:text="注册" android:textSize="16sp" android:textColor="#63B8FF" /> android:visibility="visible" <Button android:id="@+id/login_error" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:background="#00000000" android:text="忘记密码" android:textSize="16sp" android:textColor="#63B8FF"/> <CheckBox android:id="@+id/checkBox1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/login_layout" android:layout_alignStart="@+id/login_layout" android:layout_below="@+id/login_layout" android:layout_marginTop="28dp" android:text="记住密码" /> <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="自动登录" android:id="@+id/checkBox2" android:layout_below="@+id/checkBox1" android:layout_alignLeft="@+id/checkBox1" android:layout_alignStart="@+id/checkBox1" /> RelativeLayout>//布局文件：activity_regist.xml<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <RelativeLayout android:id="@+id/regist_layout" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="20dp" android:layout_marginRight="20dp" android:gravity="center"> <FrameLayout android:id="@+id/username_layout" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="55dp" android:gravity="center"> <EditText android:id="@+id/username_regist" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="5dp" android:hint="6位数字账号" android:inputType="number" android:maxLength="20" android:paddingLeft="90dp" android:paddingRight="60dp" /> <Button android:id="@+id/bt_username_clear_regist" android:layout_width="23dp" android:layout_height="23dp" android:layout_gravity="right|center_vertical" android:layout_marginRight="10dp" android:background="@drawable/login_delete" android:visibility="invisible" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="注册账号：" android:textSize="16dp" android:textColor="#333333" android:layout_marginLeft="8dp" android:layout_gravity="left|center_vertical" /> FrameLayout> <FrameLayout android:id="@+id/usercode_layout_1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/username_layout" android:layout_marginTop="6dp" android:gravity="center"> <EditText android:id="@+id/password_regist_1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:inputType="textPassword" android:maxLength="20" android:paddingLeft="90dp" android:paddingRight="60dp" android:hint="6位密码"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="输入密码：" android:textSize="@dimen/activity_vertical_margin" android:layout_marginLeft="8dp" android:layout_gravity="left|center_vertical" android:textColor="#333333"/> <Button android:id="@+id/bt_pwd_clear_regist_1" android:layout_width="23dp" android:layout_height="23dp" android:layout_gravity="right|center_vertical" android:layout_marginRight="10dp" android:background="@drawable/login_delete" android:visibility="invisible" /> FrameLayout> <FrameLayout android:id="@+id/usercode_layout_2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/usercode_layout_1" android:layout_marginTop="6dp" android:gravity="center"> <EditText android:id="@+id/password_regist_2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:inputType="textPassword" android:maxLength="20" android:paddingLeft="90dp" android:paddingRight="60dp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="重复密码：" android:textSize="@dimen/activity_vertical_margin" android:layout_marginLeft="8dp" android:layout_gravity="left|center_vertical" android:textColor="#333333"/> <Button android:id="@+id/bt_pwd_clear_regist_2" android:layout_width="23dp" android:layout_height="23dp" android:layout_gravity="right|center_vertical" android:layout_marginRight="10dp" android:background="@drawable/login_delete" android:visibility="invisible" /> FrameLayout> <Button android:id="@+id/regist" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/usercode_layout_2" android:layout_marginTop="30dp" android:background="#ff336699" android:gravity="center" android:text="立即注册" android:textColor="@android:color/white" android:textSize="24dp" /> RelativeLayout>RelativeLayout>//LoginActivity.javapublic class LoginActivity extends Activity implements View.OnClickListener,View.OnLongClickListener { // 声明控件对象 private EditText et_name, et_pass; private Button mLoginButton,mLoginError,mRegister,ONLYTEST; int selectIndex=1; boolean isReLogin=false; private RelativeLayout countryselect; private TextView coutry_phone_sn, coutryName;// private Button bt_username_clear; private Button bt_pwd_clear; // private Button bt_pwd_eye; //记录账号、密码 private SharedPreferences sp_userinfo; private CheckBox cb_remenber; private CheckBox cb_autologin; private String userNameValue,passwordValue; private TextWatcher username_watcher; private TextWatcher password_watcher; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);// requestWindowFeature(Window.FEATURE_NO_TITLE);// //不显示系统的标题栏// getWindow().setFlags( WindowManager.LayoutParams.FLAG_FULLSCREEN,// WindowManager.LayoutParams.FLAG_FULLSCREEN ); setContentView(R.layout.activity_login); et_name = (EditText) findViewById(R.id.username); et_pass = (EditText) findViewById(R.id.password); bt_username_clear = (Button)findViewById(R.id.bt_username_clear); bt_pwd_clear = (Button)findViewById(R.id.bt_pwd_clear); //bt_pwd_eye = (Button)findViewById(R.id.bt_pwd_eye); bt_username_clear.setOnClickListener(this); bt_pwd_clear.setOnClickListener(this); //bt_pwd_eye.setOnClickListener(this); initWatcher(); et_name.addTextChangedListener(username_watcher); et_pass.addTextChangedListener(password_watcher); mLoginButton = (Button) findViewById(R.id.login); mLoginError = (Button) findViewById(R.id.login_error); mRegister = (Button) findViewById(R.id.register); //ONLYTEST = (Button) findViewById(R.id.registfer); //ONLYTEST.setOnClickListener(this); //ONLYTEST.setOnLongClickListener((OnLongClickListener) this); mLoginButton.setOnClickListener(this); mLoginError.setOnClickListener(this); mRegister.setOnClickListener(this); sp_userinfo = this.getSharedPreferences("userInfo", Context.MODE_PRIVATE); if(sp_userinfo.getBoolean("ISCHECK", false)) { //设置默认是记录密码状态 //rem_pw.setChecked(true); et_name.setText(sp_userinfo.getString("USER_NAME", "")); et_pass.setText(sp_userinfo.getString("PASSWORD", "")); //判断自动登陆多选框状态 if( //sp_userinfo.getBoolean("AUTO_ISCHECK", false) //测试，设为false false ) { //设置默认是自动登录状态 //auto_login.setChecked(true); //跳转界面 Intent intent = new Intent(LoginActivity.this,MainActivity.class); LoginActivity.this.startActivity(intent); } } cb_remenber = (CheckBox)findViewById(R.id.checkBox1); cb_autologin =(CheckBox)findViewById(R.id.checkBox2); CompoundButton.OnCheckedChangeListener listener1 = new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton compoundButton, boolean b) { if (b){ //选中，保存密码 sp_userinfo.edit().putBoolean("ISCHECK", true).commit(); Toast.makeText(LoginActivity.this, compoundButton.getText()+"被选择",Toast.LENGTH_SHORT ).show(); }else{ //取消选中，删除保存的密码 sp_userinfo.edit().putBoolean("ISCHECK", false).commit(); Toast.makeText(LoginActivity.this, compoundButton.getText()+"取消选择",Toast.LENGTH_SHORT ).show(); } } }; cb_remenber.setOnCheckedChangeListener(listener1); CompoundButton.OnCheckedChangeListener listener2 = new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton compoundButton, boolean b) { if (b){ //选中，保存密码 sp_userinfo.edit().putBoolean("AUTO_ISCHECK", true).commit(); Toast.makeText(LoginActivity.this, compoundButton.getText()+"被选择",Toast.LENGTH_SHORT ).show(); }else{ //取消选中，删除保存的密码 sp_userinfo.edit().putBoolean("AUTO_ISCHECK", false).commit(); Toast.makeText(LoginActivity.this, compoundButton.getText()+"取消选择",Toast.LENGTH_SHORT ).show(); } } }; cb_autologin.setOnCheckedChangeListener(listener2); } /** * 手机号，密码输入控件公用这一个watcher */ private void initWatcher() { username_watcher = new TextWatcher() { public void onTextChanged(CharSequence s, int start, int before, int count) {} public void beforeTextChanged(CharSequence s, int start, int count,int after) {} public void afterTextChanged(Editable s) { et_pass.setText(""); if(s.toString().length()>0){ bt_username_clear.setVisibility(View.VISIBLE); }else{ bt_username_clear.setVisibility(View.INVISIBLE); } } }; password_watcher = new TextWatcher() { public void onTextChanged(CharSequence s, int start, int before, int count) {} public void beforeTextChanged(CharSequence s, int start, int count,int after) {} public void afterTextChanged(Editable s) { if(s.toString().length()>0){ bt_pwd_clear.setVisibility(View.VISIBLE); }else{ bt_pwd_clear.setVisibility(View.INVISIBLE); } } }; } @Override public void onClick(View arg0) { // TODO Auto-generated method stub switch (arg0.getId()) { case R.id.login: //登陆 userNameValue = et_name.getText().toString(); passwordValue = et_pass.getText().toString(); //判断信息是否符合 if (userNameValue.toString().length()==6 ) { if (passwordValue.toString().length()==6){ if (cb_remenber.isChecked()) { //记住用户名、密码、 SharedPreferences.Editor editor = sp_userinfo.edit(); editor.putString("USER_NAME", userNameValue); editor.putString("PASSWORD", passwordValue); editor.commit(); } Intent intent_login = new Intent().setClass(LoginActivity.this, MainActivity.class); //Intent intent_login = new Intent(); //intent_login.putExtra("fragment",0); startActivity(intent_login); }else{Toast.makeText(LoginActivity.this, "密码格式错误！", Toast.LENGTH_LONG).show();} }else{Toast.makeText(LoginActivity.this, "账号格式错误！", Toast.LENGTH_LONG).show();} break; case R.id.login_error: //无法登陆(忘记密码了吧) AlertDialog.Builder builder = new AlertDialog.Builder(this). setTitle("忘记密码"). setIcon(R.drawable.login_illegal1). setMessage("请拨打： 110 \n"). setPositiveButton("确定",null); builder.create().show(); break; case R.id.register: //注册新的用户 Intent intent_regist = new Intent(LoginActivity.this, RegistActivity.class); startActivityForResult(intent_regist,0);//请求码为0 break; case R.id.bt_username_clear: et_name.setText(""); et_pass.setText(""); break; case R.id.bt_pwd_clear: et_pass.setText(""); break; } } //重写，回调方式来获取RegistActivity返回的数据 @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == 0 && resultCode == 0){ Bundle d = data.getExtras(); String info = d.getString("info"); et_name.setText(info); } } /** * 登陆 */ private void login() { } @Override public boolean onLongClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { //case R.id.registfer: // if(SERVER_FLAG>9){ // } // SERVER_FLAG++; // break; } return true; } /** * 监听Back键按下事件,方法2: * 注意: * 返回值表示:是否能完全处理该事件 * 在此处返回false,所以会继续传播该事件. * 在具体项目中此处的返回值视情况而定. */ @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if ((keyCode == KeyEvent.KEYCODE_BACK)) { if(isReLogin){ Intent mHomeIntent = new Intent(Intent.ACTION_MAIN); mHomeIntent.addCategory(Intent.CATEGORY_HOME); mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); LoginActivity.this.startActivity(mHomeIntent); }else{ LoginActivity.this.finish(); } return false; }else { return super.onKeyDown(keyCode, event); } }}//RigistActivity.javapackage com.example.businesstriphelper.login;import android.app.AlertDialog;import android.content.Intent;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.text.Editable;import android.text.TextWatcher;import android.view.MenuItem;import android.view.View;import android.view.Window;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;import com.example.businesstriphelper.R;/** * Created by Administrator on 2016/7/5. */public class RegistActivity extends AppCompatActivity implements View.OnClickListener{ private EditText et_name, et_pass1,et_pass2; private Button mRegistButton; private Button bt_username_clear; private Button bt_pwd_clear1,bt_pwd_clear2; private TextWatcher username_watcher; private TextWatcher password_watcher1,password_watcher2; //是否显示注册信息核对框 private boolean isInfoChecked = false; private String userNameValue,passwordValue1,passwordValue2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_LEFT_ICON); setContentView(R.layout.activity_regiset); getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setTitle("注册"); et_name = (EditText) findViewById(R.id.username_regist); et_pass1 = (EditText) findViewById(R.id.password_regist_1); et_pass2 = (EditText) findViewById(R.id.password_regist_2); bt_username_clear = (Button) findViewById(R.id.bt_username_clear_regist); bt_pwd_clear1 = (Button) findViewById(R.id.bt_pwd_clear_regist_1); bt_pwd_clear2 = (Button) findViewById(R.id.bt_pwd_clear_regist_2); bt_username_clear.setOnClickListener(this); bt_pwd_clear1.setOnClickListener(this); bt_pwd_clear2.setOnClickListener(this); initWatcher(); et_name.addTextChangedListener(username_watcher); et_pass1.addTextChangedListener(password_watcher1); et_pass2.addTextChangedListener(password_watcher2); mRegistButton = (Button) findViewById(R.id.regist); mRegistButton.setOnClickListener(this); } private void initWatcher() { username_watcher = new TextWatcher() { public void onTextChanged(CharSequence s, int start, int before, int count) {} public void beforeTextChanged(CharSequence s, int start, int count,int after) {} public void afterTextChanged(Editable s) { isInfoChecked = false; if(s.toString().length()>0){ bt_username_clear.setVisibility(View.VISIBLE); }else{ bt_username_clear.setVisibility(View.INVISIBLE); } } }; password_watcher1 = new TextWatcher() { public void onTextChanged(CharSequence s, int start, int before, int count) {} public void beforeTextChanged(CharSequence s, int start, int count,int after) {} public void afterTextChanged(Editable s) { isInfoChecked = false; et_pass2.setText(""); if(s.toString().length()>0){ bt_pwd_clear1.setVisibility(View.VISIBLE); }else{ bt_pwd_clear1.setVisibility(View.INVISIBLE); } } }; password_watcher2 = new TextWatcher() { public void onTextChanged(CharSequence s, int start, int before, int count) {} public void beforeTextChanged(CharSequence s, int start, int count,int after) {} public void afterTextChanged(Editable s) { isInfoChecked = false; if(s.toString().length()>0){ bt_pwd_clear2.setVisibility(View.VISIBLE); }else{ bt_pwd_clear2.setVisibility(View.INVISIBLE); } } }; } @Override public void onClick(View arg0) { switch (arg0.getId()) { case R.id.regist: userNameValue = et_name.getText().toString(); passwordValue1 = et_pass1.getText().toString(); passwordValue2 = et_pass2.getText().toString(); //判断信息是否符合, //千万不要这样写，而是写一个判断方法， if (userNameValue.length()==6 ) { if (passwordValue1.length()==6){ if (passwordValue1.equals(passwordValue2)){ if (isInfoChecked == false) { isInfoChecked = true; AlertDialog.Builder builder = new AlertDialog.Builder(this). setTitle("注册信息"). setIcon(R.drawable.login_illegal1). setMessage("账号： " + et_name.getText().toString() + "\n密码： " + et_pass2.getText().toString() + "\n请再次点击“立即注册”"). setPositiveButton("确定", null); builder.create().show(); }else { //注册,携带注册信息返回 Intent intent = getIntent(); intent.putExtra("info",userNameValue); RegistActivity.this.setResult(0,intent); RegistActivity.this.finish(); //Intent intent_login = new Intent().setClass(RegistActivity.this, MainActivity.class); //startActivity(intent_login); } }else{Toast.makeText(RegistActivity.this, "两次密码不一致！"+"\n"+passwordValue1+"\n"+passwordValue2, Toast.LENGTH_LONG).show();} }else{Toast.makeText(RegistActivity.this, "密码格式错误！", Toast.LENGTH_LONG).show();} } else{Toast.makeText(RegistActivity.this, "账号格式错误！", Toast.LENGTH_LONG).show();} break; case R.id.bt_username_clear_regist: et_name.setText(""); break; case R.id.bt_pwd_clear_regist_1: et_pass1.setText(""); et_pass2.setText(""); break; case R.id.bt_pwd_clear_regist_2: et_pass2.setText(""); break; } } //标题栏返回按键 @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == android.R.id.home) { //不反回，判断语句的问题 //android.R 和R的区别： //android.R是要获取系统资源时使用的； //R当前应用程序中的资源。 Intent intent = getIntent(); intent.putExtra("info",et_name.getText().toString()); RegistActivity.this.setResult(0,intent); RegistActivity.this.finish(); return true; } return super.onOptionsItemSelected(item); } //重写，防止按返回键崩溃 @Override public void onBackPressed() { // super.onBackPressed(); 不要调用父类的方法 Intent intent = getIntent(); intent.putExtra("info",et_name.getText().toString()); RegistActivity.this.setResult(0,intent); RegistActivity.this.finish(); }}以上，希望对你有用！
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