Android 开发笔记___登陆app
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1 package com.example.alimjan.hello_world; 2 3 /** 4 * Created by alimjan on 7/4/2017. 5 */ 6 7 8 import android.content.Context; 9 import android.support.v7.app.AppCompatActivity; 10 import android.app.AlertDialog; 11 import android.content.DialogInterface; 12 import android.content.Intent; 13 import android.os.Bundle; 14 import android.text.Editable; 15 import android.text.TextWatcher; 16 import android.view.View; 17 import android.view.View.OnClickListener; 18 import android.widget.AdapterView; 19 import android.widget.ArrayAdapter; 20 import android.widget.Button; 21 import android.widget.CheckBox; 22 import android.widget.CompoundButton; 23 import android.widget.EditText; 24 import android.widget.RadioButton; 25 import android.widget.RadioGroup; 26 import android.widget.Spinner; 27 import android.widget.TextView; 28 import android.widget.Toast; 29 import android.widget.AdapterView.OnItemSelectedListener; 30 31 public class class_3_6 extends AppCompatActivity implements OnClickListener { 32 33 private RadioGroup rg_login; 34 private RadioButton rb_password; 35 private RadioButton rb_verifycode; 36 private EditText et_phone; 37 private TextView tv_password; 38 private EditText et_password; 39 private Button btn_forget; 40 private CheckBox ck_remember; 41 private Button btn_login; 42 43 private int mRequestCode = 0; 44 private int mType = 0; 45 private boolean bRemember = false; 46 private String mPassword = "111111"; 47 private String mVerifyCode; 48 49 @Override 50 protected void onCreate(Bundle savedInstanceState) { 51 super.onCreate(savedInstanceState); 52 setContentView(R.layout.code_3_6); 53 rg_login = (RadioGroup) findViewById(R.id.rg_login); 54 rb_password = (RadioButton) findViewById(R.id.rb_password); 55 rb_verifycode = (RadioButton) findViewById(R.id.rb_verifycode); 56 et_phone = (EditText) findViewById(R.id.et_phone); 57 tv_password = (TextView) findViewById(R.id.tv_password); 58 et_password = (EditText) findViewById(R.id.et_password); 59 btn_forget = (Button) findViewById(R.id.btn_forget); 60 ck_remember = (CheckBox) findViewById(R.id.ck_remember); 61 btn_login = (Button) findViewById(R.id.btn_login); 62 63 rg_login.setOnCheckedChangeListener(new RadioListener()); 64 ck_remember.setOnCheckedChangeListener(new CheckListener()); 65 et_phone.addTextChangedListener(new HideTextWatcher(et_phone)); 66 et_password.addTextChangedListener(new HideTextWatcher(et_password)); 67 btn_forget.setOnClickListener(this); 68 btn_login.setOnClickListener(this); 69 70 ArrayAdapter<String> typeAdapter = new ArrayAdapter<String>(this, 71 R.layout.item_select, typeArray); 72 typeAdapter.setDropDownViewResource(R.layout.item_dropdown); 73 Spinner sp_type = (Spinner) findViewById(R.id.sp_type); 74 sp_type.setPrompt("请选择用户类型"); 75 sp_type.setAdapter(typeAdapter); 76 sp_type.setSelection(mType); 77 sp_type.setOnItemSelectedListener(new TypeSelectedListener()); 78 } 79 80 private class RadioListener implements RadioGroup.OnCheckedChangeListener { 81 @Override 82 public void onCheckedChanged(RadioGroup group, int checkedId) { 83 if (checkedId == R.id.rb_password) { 84 tv_password.setText("登录密码："); 85 et_password.setHint("请输入密码"); 86 btn_forget.setText("忘记密码"); 87 ck_remember.setVisibility(View.VISIBLE); 88 } else if (checkedId == R.id.rb_verifycode) { 89 tv_password.setText(" 验证码："); 90 et_password.setHint("请输入验证码"); 91 btn_forget.setText("获取验证码"); 92 ck_remember.setVisibility(View.INVISIBLE); 93 } 94 } 95 } 96 97 private String[] typeArray = {"个人用户", "公司用户"}; 98 class TypeSelectedListener implements OnItemSelectedListener { 99 public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) { 100 mType = arg2; 101 } 102 103 public void onNothingSelected(AdapterView<?> arg0) { 104 } 105 } 106 107 private class CheckListener implements CompoundButton.OnCheckedChangeListener { 108 @Override 109 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 110 if (buttonView.getId() == R.id.ck_remember) { 111 bRemember = isChecked; 112 } 113 } 114 } 115 116 private class HideTextWatcher implements TextWatcher { 117 private EditText mView; 118 private int mMaxLength; 119 private CharSequence mStr; 120 121 public HideTextWatcher(EditText v) { 122 super(); 123 mView = v; 124 mMaxLength = ViewUtil.getMaxLength(v); 125 } 126 127 @Override 128 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 129 } 130 131 @Override 132 public void onTextChanged(CharSequence s, int start, int before, int count) { 133 mStr = s; 134 } 135 136 @Override 137 public void afterTextChanged(Editable s) { 138 if (mStr == null || mStr.length() == 0) 139 return; 140 if ((mStr.length() == 11 && mMaxLength == 11) || 141 (mStr.length() == 6 && mMaxLength == 6)) { 142 ViewUtil.hideOneInputMethod(class_3_6.this, mView); 143 } 144 } 145 } 146 147 @Override 148 public void onClick(View v) { 149 String phone = et_phone.getText().toString(); 150 if (v.getId() == R.id.btn_forget) { 151 if (phone==null || phone.length()<11) { 152 Toast.makeText(this, "请输入正确的手机号", Toast.LENGTH_SHORT).show(); 153 return; 154 } 155 if (rb_password.isChecked() == true) { 156 Intent intent = new Intent(this, class_3_6_1.class); 157 intent.putExtra("phone", phone); 158 startActivityForResult(intent, mRequestCode); 159 } else if (rb_verifycode.isChecked() == true) { 160 mVerifyCode = String.format("%06d", (int)(Math.random()*1000000%1000000)); 161 AlertDialog.Builder builder = new AlertDialog.Builder(this); 162 builder.setTitle("请记住验证码"); 163 builder.setMessage("手机号"+phone+"，本次验证码是"+mVerifyCode+"，请输入验证码"); 164 builder.setPositiveButton("好的", null); 165 AlertDialog alert = builder.create(); 166 alert.show(); 167 } 168 } else if (v.getId() == R.id.btn_login) { 169 if (phone==null || phone.length()<11) { 170 Toast.makeText(this, "请输入正确的手机号", Toast.LENGTH_SHORT).show(); 171 return; 172 } 173 if (rb_password.isChecked() == true) { 174 if (et_password.getText().toString().equals(mPassword) != true) { 175 Toast.makeText(this, "请输入正确的密码", Toast.LENGTH_SHORT).show(); 176 return; 177 } else { 178 loginSuccess(); 179 } 180 } else if (rb_verifycode.isChecked() == true) { 181 if (et_password.getText().toString().equals(mVerifyCode) != true) { 182 Toast.makeText(this, "请输入正确的验证码", Toast.LENGTH_SHORT).show(); 183 return; 184 } else { 185 loginSuccess(); 186 } 187 } 188 } 189 } 190 191 @Override 192 protected void onActivityResult(int requestCode, int resultCode, Intent data) { 193 if (requestCode == mRequestCode && data!=null) { 194 //用户密码已改为新密码 195 mPassword = data.getStringExtra("new_password"); 196 } 197 } 198 199 //从修改密码页面返回登录页面，要清空密码的输入框 200 @Override 201 protected void onRestart() { 202 et_password.setText(""); 203 super.onRestart(); 204 } 205 206 private void loginSuccess() { 207 String desc = String.format("您的手机号码是%s，类型是%s。恭喜你通过登录验证，点击“确定”按钮返回上个页面", 208 et_phone.getText().toString(), typeArray[mType]); 209 AlertDialog.Builder builder = new AlertDialog.Builder(this); 210 builder.setTitle("登录成功"); 211 builder.setMessage(desc); 212 builder.setPositiveButton("确定返回", new DialogInterface.OnClickListener() { 213 @Override 214 public void onClick(DialogInterface dialog, int which) { 215 finish(); 216 } 217 }); 218 builder.setNegativeButton("我再看看", null); 219 AlertDialog alert = builder.create(); 220 alert.show(); 221 } 222 223 public static void startHome(Context mContext) { 224 Intent intent = new Intent(mContext, class_3_6.class); 225 mContext.startActivity(intent); 226 } 227 228 }
1 package com.example.alimjan.hello_world; 2 3 /** 4 * Created by alimjan on 7/4/2017. 5 */ 6 7 import android.app.Activity; 8 import android.support.v7.app.AppCompatActivity; 9 import android.app.AlertDialog; 10 import android.content.Intent; 11 import android.os.Bundle; 12 import android.view.View; 13 import android.view.View.OnClickListener; 14 import android.widget.EditText; 15 import android.widget.Toast; 16 17 public class class_3_6_1 extends AppCompatActivity implements OnClickListener { 18 19 private EditText et_password_first; 20 private EditText et_password_second; 21 private EditText et_verifycode; 22 private String mVerifyCode; 23 private String mPhone; 24 25 @Override 26 protected void onCreate(Bundle savedInstanceState) { 27 super.onCreate(savedInstanceState); 28 setContentView(R.layout.code_3_6_1); 29 et_password_first = (EditText) findViewById(R.id.et_password_first); 30 et_password_second = (EditText) findViewById(R.id.et_password_second); 31 et_verifycode = (EditText) findViewById(R.id.et_verifycode); 32 findViewById(R.id.btn_verifycode).setOnClickListener(this); 33 findViewById(R.id.btn_confirm).setOnClickListener(this); 34 mPhone = getIntent().getStringExtra("phone"); 35 } 36 37 @Override 38 public void onClick(View v) { 39 if (v.getId() == R.id.btn_verifycode) { 40 if (mPhone==null || mPhone.length()<11) { 41 Toast.makeText(this, "请输入正确的手机号", Toast.LENGTH_SHORT).show(); 42 return; 43 } 44 mVerifyCode = String.format("%06d", (int) (Math.random() * 1000000 % 1000000)); 45 AlertDialog.Builder builder = new AlertDialog.Builder(this); 46 builder.setTitle("请记住验证码"); 47 builder.setMessage("手机号"+mPhone+"，本次验证码是"+mVerifyCode+"，请输入验证码"); 48 builder.setPositiveButton("好的", null); 49 AlertDialog alert = builder.create(); 50 alert.show(); 51 } else if (v.getId() == R.id.btn_confirm) { 52 String password_first = et_password_first.getText().toString(); 53 String password_second = et_password_second.getText().toString(); 54 if (password_first==null || password_first.length()<6 || 55 password_second==null || password_second.length()<6) { 56 Toast.makeText(this, "请输入正确的新密码", Toast.LENGTH_SHORT).show(); 57 return; 58 } 59 if (password_first.equals(password_second) != true) { 60 Toast.makeText(this, "两次输入的新密码不一致", Toast.LENGTH_SHORT).show(); 61 return; 62 } 63 if (et_verifycode.getText().toString().equals(mVerifyCode) != true) { 64 Toast.makeText(this, "请输入正确的验证码", Toast.LENGTH_SHORT).show(); 65 return; 66 } else { 67 Toast.makeText(this, "密码修改成功", Toast.LENGTH_SHORT).show(); 68 Intent intent = new Intent(); 69 intent.putExtra("new_password", password_first); 70 setResult(Activity.RESULT_OK, intent); 71 finish(); 72 } 73 } 74 } 75 76 }
1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 android:layout_width="match_parent" 3 android:layout_height="match_parent" 4 android:focusable="true" 5 android:focusableInTouchMode="true" 6 android:orientation="vertical" 7 android:padding="5dp" > 8 9 <RadioGroup 10 android:id="@+id/rg_login" 11 android:layout_width="match_parent" 12 android:layout_height="60dp" 13 android:orientation="horizontal" > 14 15 <RadioButton 16 android:id="@+id/rb_password" 17 android:layout_width="0dp" 18 android:layout_height="match_parent" 19 android:layout_weight="1" 20 android:checked="true" 21 android:gravity="left|center" 22 android:text="密码登录" 23 android:textColor="@color/black" 24 android:textSize="17sp" /> 25 26 <RadioButton 27 android:id="@+id/rb_verifycode" 28 android:layout_width="0dp" 29 android:layout_height="match_parent" 30 android:layout_weight="1" 31 android:checked="false" 32 android:gravity="left|center" 33 android:text="验证码登录" 34 android:textColor="@color/black" 35 android:textSize="17sp" /> 36 </RadioGroup> 37 38 <RelativeLayout 39 android:layout_width="match_parent" 40 android:layout_height="60dp" > 41 42 <TextView 43 android:id="@+id/tv_type" 44 android:layout_width="wrap_content" 45 android:layout_height="match_parent" 46 android:layout_alignParentLeft="true" 47 android:gravity="center" 48 android:text=" 我是：" 49 android:textColor="@color/black" 50 android:textSize="17sp" /> 51 52 <Spinner 53 android:id="@+id/sp_type" 54 android:layout_width="match_parent" 55 android:layout_height="match_parent" 56 android:layout_toRightOf="@+id/tv_type" 57 android:gravity="left|center" 58 android:spinnerMode="dialog" /> 59 </RelativeLayout> 60 61 <RelativeLayout 62 android:layout_width="match_parent" 63 android:layout_height="60dp" > 64 65 <TextView 66 android:id="@+id/tv_phone" 67 android:layout_width="wrap_content" 68 android:layout_height="match_parent" 69 android:layout_alignParentLeft="true" 70 android:gravity="center" 71 android:text="手机号码：" 72 android:textColor="@color/black" 73 android:textSize="17sp" /> 74 75 <EditText 76 android:id="@+id/et_phone" 77 android:layout_width="match_parent" 78 android:layout_height="match_parent" 79 android:layout_marginBottom="5dp" 80以上是关于Android 开发笔记___登陆app的主要内容，如果未能解决你的问题，请参考以下文章
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