Android登录记住多个密码的实现方法

<?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="#ffffff"   android:gravity="center"   android:minHeight="60dp"   android:orientation="horizontal" >   <TextView     android:id="@+id/adapter_account_item_iphone"     android:layout_width="0dip"     android:layout_height="wrap_content"     android:layout_marginLeft="20dp"     android:layout_weight="1"     android:background="@null"     android:singleLine="true"     android:textColor="@android:color/black"     android:textSize="15sp" />   <ImageView     android:id="@+id/adapter_account_item_delete"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_gravity="center_vertical"     android:paddingRight="20dp"     android:scaleType="fitXY"     android:src="@drawable/login_delete_account" /> </LinearLayout> 

<?xml version="1.0" encoding="utf-8"?> <ListView xmlns:android="http://schemas.android.com/apk/res/android"   android:orientation="vertical"   android:layout_width="match_parent"   android:layout_height="wrap_content"   android:dividerHeight="1dp" android:background="@drawable/dialog_bottom_holo_light" /> 

package com.weikong.adapter;  import java.util.ArrayList; import java.util.List; import com.weikong.R; import com.weikong.bean.User; import com.weikong.views.LoginActivity; import android.content.Context; import android.util.Log; import android.view.LayoutInflater; import android.view.TextureView; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; public class UserAdapter extends BaseAdapter{   private List<User> listUsers = new ArrayList<User>();   private Context context;   // private LayoutInflater mLayoutInflater = null;   private DeleteUser deleteUser;   public void setDeleteUser(DeleteUser deleteUser) {     this.deleteUser = deleteUser;   }   public UserAdapter(Context context){     this.context = context;   }   public void setListUsers(List<User> listUsers){     this.listUsers = listUsers;     this.notifyDataSetChanged();   }   @Override   public int getCount() {     // TODO Auto-generated method stub     return listUsers.size();   }   @Override   public User getItem(int position) {     // TODO Auto-generated method stub     return listUsers.get(position);   }   @Override   public long getItemId(int position) {     // TODO Auto-generated method stub     return 0;   }   @Override   public View getView(int position, View convertView, ViewGroup parent) {     UserHolder userHolder = null;     if(convertView == null){ <span style="white-space:pre">     </span>//这里装载也要这样写       convertView = LayoutInflater.from(parent.getContext())           .inflate(R.layout.adapter_user_item,parent,false);       userHolder = new UserHolder(convertView); <span style="white-space:pre">     </span>//这个很重要哦       userHolder.ivDelete.setTag(position);       userHolder.ivDelete.setOnClickListener(new OnClickListener(){         @Override         public void onClick(View v) {           deleteUser.deleteUserClick(v);         }       });       convertView.setTag(userHolder);     }else{       userHolder = (UserHolder)convertView.getTag();     }     User user = getItem(position);     Log.e("", user.getId());     userHolder.tvAccount.setText(user.getId());     userHolder.ivDelete.setImageResource(R.drawable.login_delete_account);     return convertView;   }   class UserHolder{     public TextView tvAccount;     public ImageView ivDelete;     public UserHolder(View v){       tvAccount = (TextView)v.findViewById(R.id.adapter_account_item_iphone);       ivDelete = (ImageView)v.findViewById(R.id.adapter_account_item_delete);     }   }   public interface DeleteUser{     public void deleteUserClick(View v);   } } activity_login.xml 布局[html] view plain copy<?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"   android:background="@android:color/white"   android:orientation="vertical"   android:paddingBottom="10dp" >   <ImageView     android:id="@+id/loginicon"     android:layout_width="120dp"     android:layout_height="120dp"     android:layout_centerHorizontal="true"     android:layout_marginTop="10dp"     android:contentDescription="@string/app_name"/>   <LinearLayout     android:id="@+id/mLayout"     android:layout_width="300dp"     android:layout_height="60dp"     android:layout_below="@+id/loginicon"     android:layout_centerHorizontal="true"     android:gravity="center"     android:layout_marginTop="30dp"     android:background="@drawable/login_input_bg" >     <EditText       android:id="@+id/mobilenum"       android:layout_width="0dip"       android:layout_height="wrap_content"       android:layout_weight="1"       android:layout_marginLeft="20dp"       android:background="@null"       android:hint="@string/please_input_phone"       android:maxLength="11"       android:singleLine="true"       android:textSize="15sp"       android:textColor="@android:color/black" />     <ImageView       android:id="@+id/login_iv_show_phone_list"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_gravity="center_vertical"       android:layout_marginLeft="10dp"       android:layout_marginRight="10dp"       android:scaleType="fitXY"       android:src="@drawable/ic_find_next_holo_light"/>   </LinearLayout>   <RelativeLayout     android:id="@+id/pLayout"     android:layout_width="300dp"     android:layout_height="60dp"     android:layout_below="@+id/mLayout"     android:layout_centerHorizontal="true"     android:layout_marginTop="10dp"     android:background="@drawable/login_input_bg" >     <EditText       android:id="@+id/pwd"       android:layout_width="fill_parent"       android:layout_height="wrap_content"       android:layout_centerVertical="true"       android:layout_marginLeft="20dp"       android:layout_marginRight="20dp"       android:background="@null"       android:hint="@string/please_input_password"       android:inputType="textPassword"       android:singleLine="true"       android:textColor="@android:color/black"/>   </RelativeLayout>   <Button     android:id="@+id/dologin"     android:layout_width="300dp"     android:layout_height="60dp"     android:layout_below="@+id/pLayout"     android:layout_centerHorizontal="true"     android:layout_marginTop="30dp"     android:background="@drawable/loginbtn_selector"     android:text="@string/login"     android:textColor="@android:color/white"     android:textSize="@dimen/text_size_larger" />   <RelativeLayout     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignParentBottom="true"     android:layout_centerHorizontal="true"     android:layout_marginLeft="10dp"     android:layout_marginRight="10dp"     android:layout_marginTop="10dp" >     <Button       android:id="@+id/forgetPassword"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_alignParentLeft="true"       android:layout_marginTop="5dp"       android:background="@null"       android:text="@string/forget_password"       android:textColor="@android:color/black"       android:textSize="@dimen/text_size_larger" />     <Button       android:id="@+id/registerbtn"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_alignParentRight="true"       android:layout_marginTop="5dp"       android:background="@null"       android:text="@string/register_new_custom"       android:textColor="@android:color/black"       android:textSize="@dimen/text_size_larger" />   </RelativeLayout> </RelativeLayout> 

package com.weikong.views; import java.util.ArrayList; import java.util.List; import com.weikong.R; import com.weikong.adapter.UserAdapter; import com.weikong.adapter.UserAdapter.DeleteUser; import com.weikong.bean.User; import com.weikong.tools.DateUtil; import com.weikong.tools.Constants; import com.weikong.tools.LocalInfoUtil; import android.annotation.SuppressLint; import android.app.ActionBar.LayoutParams; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.text.Editable; import android.text.InputType; import android.text.TextWatcher; import android.util.Log; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.View.OnFocusChangeListener; import android.view.View.OnTouchListener; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.EditText; import android.widget.ImageView; import android.widget.ListView; import android.widget.PopupWindow; import android.widget.PopupWindow.OnDismissListener; /**  *  * @author dengyancheng  * @version 1.0 ―{2015-07-31} 登陆界面  *  */ public class TestActivity extends BaseActivity implements OnTouchListener, OnItemClickListener, OnFocusChangeListener, DeleteUser, TextWatcher, OnDismissListener{   private final static String TAG = LoginActivity.class.getName();   private Context context;   /**** 手机号、密码 ***/   private EditText etPhone, etPassword;   /**用来显示电话号码列表*/   private ImageView ivShowPhoneList;   /**存储电话与密码*/   private List<User> listUsers = null;   /**点击ivShowPhoneList图片弹出的会话框*/   private PopupWindow popupWindow;   /**在popupWindow中显示账户列表*/   // Cprivate WrapListView wrapListView;   private ListView wrapListView;   /**适配器*/   private UserAdapter userAdapter;   protected static final int UPDATE_POPUWINDOW_HEIGHT_DELETE = 1000;   protected static final int UPDATE_POPUWINDOW_HEIGHT_SHOW = 1001;   private static final int UPDATE_POPUWINDOW_HEIGHT_DISMISS = 1002;   @SuppressLint("HandlerLeak")   private Handler myHandler = new Handler() {     @Override     public void handleMessage(android.os.Message msg) {       switch (msg.what) {       case UPDATE_POPUWINDOW_HEIGHT_DISMISS:          ivShowPhoneList.setImageResource(R.drawable.ic_find_next_holo_light);         break;       case UPDATE_POPUWINDOW_HEIGHT_DELETE:             int popuWidthDelete = findViewById(R.id.mLayout).getWidth()+10;           int popuHeightDelete = ((Integer)msg.obj)<3?LayoutParams.WRAP_CONTENT:findViewById(R.id.mLayout).getHeight()*3;           popupWindow.setWidth(popuWidthDelete);           popupWindow.setHeight(popuHeightDelete);           Log.e(TAG, "isShowing()=" + popupWindow.isShowing());           if(popupWindow.isShowing()) {             popupWindow.dismiss();           }           popupWindow.showAsDropDown(findViewById(R.id.mLayout), -5, -1);         break;       case UPDATE_POPUWINDOW_HEIGHT_SHOW:           int popuWidthShow = findViewById(R.id.mLayout).getWidth()+10;           int popuHeightShow = ((Integer)msg.obj)<3?LayoutParams.WRAP_CONTENT:findViewById(R.id.mLayout).getHeight()*3;           popupWindow.setWidth(popuWidthShow);           popupWindow.setHeight(popuHeightShow);           Log.e(TAG, "isShowing()=" + popupWindow.isShowing());           if(popupWindow.isShowing()) {             popupWindow.dismiss();             return;           }           ivShowPhoneList.setImageResource(R.drawable.ic_find_previous_holo_light);           popupWindow.showAsDropDown(findViewById(R.id.mLayout), -5, -1);           break;       default:         break;       }     };   };   @Override   protected void onCreate(Bundle arg0) {     super.onCreate(arg0);     setContentView(R.layout.activity_test);     context = this;     initView();     addlisener();   }   /***    * 初始化控件    */   private void initView() {     // 获取本机系统语言     String systemlanguage = getResources().getConfiguration().locale         .getCountry();     etPhone = (EditText) findViewById(R.id.mobilenum);     etPhone.setOnFocusChangeListener(this);     etPhone.addTextChangedListener(this);     if (systemlanguage.equals("CN")) {       etPhone.setInputType(InputType.TYPE_CLASS_NUMBER);     }     etPassword = (EditText) findViewById(R.id.pwd);     etPassword.setOnFocusChangeListener(this);     ivShowPhoneList = (ImageView)findViewById(R.id.login_iv_show_phone_list);     ivShowPhoneList.setOnClickListener(this);     wrapListView = (ListView) LayoutInflater.from(context).inflate(R.layout.login_pop_view, null);     wrapListView.setOnItemClickListener(this);     userAdapter = new UserAdapter(this);     userAdapter.setDeleteUser(this);     wrapListView.setAdapter(userAdapter);     popupWindow = new PopupWindow(wrapListView);     popupWindow.setBackgroundDrawable(getResources().getDrawable(R.color.transparent));     popupWindow.setFocusable(true);      popupWindow.setOutsideTouchable(true);     popupWindow.setOnDismissListener(this);   }   /***    * 添加监听事件    */   private void addlisener() {     findViewById(R.id.dologin).setOnClickListener(this);     findViewById(R.id.forgetPassword).setOnClickListener(this);     findViewById(R.id.registerbtn).setOnClickListener(this);     etPhone.setOnTouchListener(this);     etPassword.setOnTouchListener(this);   }   @Override   public void onClick(View v) {     super.onClick(v);     switch (v.getId()) {     //点击图片显示存储登录过的账户列表     case R.id.login_iv_show_phone_list:        //获取存储在本地的用户登录数据       listUsers = LocalInfoUtil.getUser(context);       if(listUsers != null && listUsers.size() > 0){         userAdapter.setListUsers(listUsers);         Message message = new Message();         message.obj = listUsers.size();         message.what = UPDATE_POPUWINDOW_HEIGHT_SHOW;         myHandler.sendMessage(message);       }       break;     case R.id.dologin:       //把登录User信息进行存储       User user = new User();       user.setId(etPhone.getEditableText().toString());       user.setPwd(etPassword.getEditableText().toString());       user.setLoginStatus(1);       user.setLoginTime(DateUtil.getCurrentNowTime());       if(listUsers == null){         listUsers = new ArrayList<User>();       }       listUsers.add(user);       LocalInfoUtil.saveUser(context,listUsers);       break;     default:       break;     }   }   @Override   public boolean onTouch(View v, MotionEvent event) {     Drawable drawable = null;     //判断是否是电话删除     if(v.getId() == R.id.mobilenum){       drawable = etPhone.getCompoundDrawables()[2];       //判断有没有图片       if(drawable == null)return false;       //判断是不是按下事件       if(event.getAction() != MotionEvent.ACTION_UP)return false;       //进行判断在right图片点击范围       if (event.getX() > etPhone.getWidth()- etPhone.getPaddingRight()           - drawable.getIntrinsicWidth()){         etPhone.setText(null);         etPassword.setText(null);         Log.e("LoginActivity","onTouch()进入删除电话");       }     }     //判断是否是密码删除     if(v.getId() == R.id.pwd){       drawable = etPassword.getCompoundDrawables()[2];       //判断有没有图片       if(drawable == null)return false;       //判断是不是按下事件       if(event.getAction() != MotionEvent.ACTION_UP)return false;       if (event.getX() > etPassword.getWidth()- etPassword.getPaddingRight()           - drawable.getIntrinsicWidth()){         Log.e("LoginActivity","onTouch()进入删除密码");         etPassword.setText(null);       }     }     return false;   }   @Override   public void onItemClick(AdapterView<?> parent, View view, int position,       long id) {     User user = (User)parent.getAdapter().getItem(position);     etPhone.setText(user.getId());     etPassword.setText(user.getPwd());   }   @Override   public void deleteUserClick(final View v) {     final User user = userAdapter.getItem((Integer)v.getTag());     AlertDialog.Builder builder = new AlertDialog.Builder(context);     builder.setTitle(getString(R.string.tips))     .setMessage(getString(R.string.sure_clear)+"("+user.getId()+")?")     .setNegativeButton(getString(R.string.cancle), null)     .setPositiveButton(getString(R.string.sure), new DialogInterface.OnClickListener(){       @Override       public void onClick(DialogInterface dialog, int which) {         listUsers = LocalInfoUtil.getUser(context);         if(listUsers == null){           return;         }         Log.e(TAG,""+listUsers.size());         for (int i = 0; i < listUsers.size(); i++) {           if(user.getId().equals(listUsers.get(i).getId())){             listUsers.remove(i);             String account = LocalInfoUtil.getValueFromSP(context, Constants.LOACAL_FILE_NAME,                 Constants.CUSTOME_PHONE_NUN);             if(account != null && user.getId().equals(account)){               Log.e(TAG,"清理内存中的对应的账户与密码");               etPassword.setText(null);               etPhone.setText(null);               LocalInfoUtil.clearValuesByKey(context, Constants.LOACAL_FILE_NAME,                   Constants.CUSTOME_PHONE_NUN);               LocalInfoUtil.clearValuesByKey(context, Constants.LOACAL_FILE_NAME,                   Constants.CUSTOME_PWD);             }             break;           }         }         LocalInfoUtil.saveUser(context, listUsers);         userAdapter.setListUsers(listUsers);         Log.e(TAG, "listUsers.size()="+listUsers.size());         Message message = new Message();         message.obj = listUsers.size();         message.what = UPDATE_POPUWINDOW_HEIGHT_DELETE;         myHandler.sendMessage(message);       }     }).show();   }   @Override   public void beforeTextChanged(CharSequence s, int start, int count,       int after) {   }   @Override   public void onTextChanged(CharSequence s, int start, int before, int count) {     if(before > 0){       Log.e(TAG, "onTextChanged before>0=true");       etPassword.setText(null);     }     Log.e(TAG, "onTextChanged start=" + start + " count="+count);     if((start + count) == 11){       listUsers = LocalInfoUtil.getUser(context);       if(listUsers != null){         Log.e(TAG, "onTextChanged s=" + s);         for(User user:listUsers){           if(s.toString().equals(user.getId())){             etPassword.setText(user.getPwd());             break;           }           Log.e(TAG, "onTextChanged " + user.getId());         }       }     }   }   @Override   public void afterTextChanged(Editable s) {   }   @Override   public void onFocusChange(View v, boolean hasFocus) {     if(v.getId() == R.id.mobilenum){       Log.e(TAG, "onFocusChange mobilenum");       if(hasFocus){         Log.e(TAG, "onFocusChange 图片显示");         etPhone.setCompoundDrawablesWithIntrinsicBounds(null, null,              getResources().getDrawable(R.drawable.login_delete_account), null);       }else{         Log.e(TAG, "onFocusChange 图片隐藏");         etPhone.setCompoundDrawablesWithIntrinsicBounds(null, null,null, null);       }     }     if(v.getId() == R.id.pwd){       if(hasFocus){         etPassword.setCompoundDrawablesWithIntrinsicBounds(null, null,              getResources().getDrawable(R.drawable.login_delete_account), null);       }else{         etPassword.setCompoundDrawablesWithIntrinsicBounds(null, null,null, null);       }     }   }   @Override   public void onDismiss() {     myHandler.sendEmptyMessage(UPDATE_POPUWINDOW_HEIGHT_DISMISS);   } }