android QQ界面和部分逻辑（更新，使用Map显示下拉框

package com.android.test.login; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Set; import util.ImagedbUtil; import util.QQ; import android.app.Activity; import android.database.Cursor; import android.os.Bundle; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnFocusChangeListener; import android.view.View.OnTouchListener; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.EditText; import android.widget.ImageButton; import android.widget.LinearLayout; import android.widget.LinearLayout.LayoutParams; import android.widget.ListView; import android.widget.PopupWindow; import android.widget.TextView; public class Date extends Activity implements OnClickListener,OnFocusChangeListener { @Override public void onFocusChange(View v, boolean hasFocus) { // TODO Auto-generated method stub switch(v.getId()){ case R.id.login_edit_pwd: if(hasFocus){//获得焦点，则获得密码 String account=mAccountsEditText.getText().toString(); if(account.equals("")){ break;// } if(list.containsKey(account)){ mPassEditText.setText(list.get(account)); } } break; case R.id.login_edit_account: if(hasFocus){ mAccountsEditText.setText(""); mPassEditText.setText(""); } break; } } // ListView listView; @Override public void onClick(View v) { // TODO Auto-generated method stub switch(v.getId()){ case R.id.popupwindow: if(pop==null){ if(adapter==null){ adapter=new myAdapter(); listView=new ListView(Date.this); pop=new PopupWindow(listView, mAccountsEditText.getWidth(), LayoutParams.WRAP_CONTENT); listView.setAdapter(adapter); pop.showAsDropDown(mAccountsEditText); } else{ account=list.keySet().toArray(); adapter.notifyDataSetChanged(); pop=new PopupWindow(listView, mAccountsEditText.getWidth(), LayoutParams.WRAP_CONTENT); pop.showAsDropDown(mAccountsEditText); } } else{ pop.dismiss(); pop=null; } break; case R.id.login_btn_login: if(mAccountsEditText.getText().toString().equals("")){ break; } String account=mAccountsEditText.getText().toString(); String pass=mPassEditText.getText().toString(); ImagedbUtil db=new ImagedbUtil(Date.this); db.open(); Cursor cursor=db.getCursorArgs(new String[]{db.getKEY()}, new String[]{account}); int keyindex=cursor.getColumnIndexOrThrow(db.getKEY()); if(mRemPassCheck.isChecked()){ //保存密码 if(cursor.getCount()>0){ int id=cursor.getInt(keyindex); safeReleaseCursor(cursor); db.update(id, pass); safeReleaseDatabase(db); } else { safeReleaseCursor(cursor); db.create(account, pass); safeReleaseDatabase(db); } list.put(account, pass);//重新替换或者添加记录 } else{ //不保存密码 if(cursor.getCount()>0){ int id=cursor.getInt(keyindex); safeReleaseCursor(cursor); db.update(id, ""); safeReleaseDatabase(db); } else { safeReleaseCursor(cursor); db.create(account, ""); safeReleaseDatabase(db); } list.put(account, "");//重新替换或者添加记录 } mAccountsEditText.setText(""); mPassEditText.setText(""); break; } } LinearLayout popupLinear; ImageButton mPopupImageButton; public PopupWindow pop; public EditText mAccountsEditText; EditText mPassEditText; CheckBox mRemPassCheck; Button mLoginButton; public myAdapter adapter; public HashMap<String,String> list; Object[] account; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.loginpage); prepare(); mPopupImageButton=(ImageButton)findViewById(R.id.popupwindow); mRemPassCheck=(CheckBox)findViewById(R.id.login_cb_savepwd); mLoginButton=(Button)findViewById(R.id.login_btn_login); mAccountsEditText=(EditText)findViewById(R.id.login_edit_account); mPassEditText=(EditText)findViewById(R.id.login_edit_pwd); mPassEditText.setOnFocusChangeListener(this); mAccountsEditText.setOnFocusChangeListener(this); mPopupImageButton.setOnClickListener(this); mLoginButton.setOnClickListener(this); } private void prepare(){ list=new HashMap<String, String>(); ImagedbUtil db=new ImagedbUtil(this); db.open(); Cursor cursor=db.getCursor(db.getKEY(),db.getACCOUNTS(),db.getPASSWORD()); int accountsindex=cursor.getColumnIndexOrThrow(db.getACCOUNTS()); int passindex=cursor.getColumnIndexOrThrow(db.getPASSWORD()); String accounts; String pass; if(cursor.getCount()>0){ do{ accounts=cursor.getString(accountsindex); pass=cursor.getString(passindex); list.put(accounts, pass); }while(cursor.moveToNext()); } safeReleaseCursor(cursor); safeReleaseDatabase(db); } private void safeReleaseCursor(Cursor cursor){ cursor.close(); cursor=null; } private void safeReleaseDatabase(ImagedbUtil db){ db.close(); db=null; } class myAdapter extends BaseAdapter { LayoutInflater mInflater; public myAdapter() { mInflater=LayoutInflater.from(Date.this); account=list.keySet().toArray(); // TODO Auto-generated constructor stub } @Override public int getCount() { // TODO Auto-generated method stub return account.length; } @Override public Object getItem(int position) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return position; } @Override public View getView(final int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub Holder holder=null; if(convertView==null){ convertView=mInflater.inflate(R.layout.popup, null); holder=new Holder(); holder.view=(TextView)convertView.findViewById(R.id.mQQ); holder.button=(ImageButton)convertView.findViewById(R.id.mQQDelete); convertView.setTag(holder); } else{ holder=(Holder) convertView.getTag(); } if(holder!=null){ convertView.setId(position); holder.setId(position); holder.view.setText(account[position].toString()); holder.view.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub pop.dismiss(); mAccountsEditText.setText(account[position].toString()); mPassEditText.setText(list.get(account[position])); return true; } }); holder.button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub String accounts=account[position].toString(); list.remove(accounts); ImagedbUtil db=new ImagedbUtil(Date.this); db.open(); Cursor cursor=db.getCursorArgs(new String[]{db.getKEY()}, new String[]{accounts}); int keyindex=cursor.getColumnIndexOrThrow(db.getKEY()); int id=cursor.getInt(keyindex); cursor.close(); db.delete(id); account=list.keySet().toArray(); adapter.notifyDataSetChanged(); } }); } return convertView; } class Holder{ TextView view; ImageButton button; void setId(int position){ view.setId(position); button.setId(position); } }