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package com.example.app_sql;
import java.io.FileNotFoundException;
import java.io.IOException;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
private TextView view1;
private TextView view2;
private TextView view3;
private TextView view4;
private TextView view5;
private Button buse;
private Button bufun;
private EditText seain;
private EditText ev;
private EditText ediev1;
private EditText ediev2;
private EditText ediev3;
private EditText ediev4;
private EditText ediev5;
private SQLiteHelper hp;
private Cursor cursor;
private int id=0;
public ListView listview;
private mydialog dialog;
private diaedi dialog2;
private long exitTime=0;
private int leng=0;;
private Dataup dataup;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 界面匹配
ev=(EditText)this.findViewById(R.id.search_in);
bufun=(Button)this.findViewById(R.id.functionall);
buse=(Button)this.findViewById(R.id.search);
seain=(EditText)this.findViewById(R.id.search_in);
listview=(ListView)this.findViewById(R.id.listview);
bufun.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
showdia();
}
});
buse.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
queryRec();
}
});
// 单例模式
hp=SQLiteHelper.getInstance(this);
cursor=hp.select();
// 自定义布局
@SuppressWarnings("deprecation")
SimpleCursorAdapter adapter=new SimpleCursorAdapter(
this,R.layout.lv_layout,
cursor,
new String[]{"GoodName","GoodPrice","GoodLow","DataTime","Note"},
new int[]{R.id.name,R.id.price,R.id.low,R.id.time,R.id.note});
// 检测是否创建listview
if(listview==null)
{
Log.d("debug"," list null");
}
listview.addHeaderView(LayoutInflater.from(this).inflate(
R.layout.listhead, null));
listview.setAdapter(adapter);
// 设置监听事件，点击时显示在编辑界面
// 问题
listview.setOnItemClickListener(new AdapterView.OnItemClickListener(){
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3){
cursor.moveToPosition(arg2); // 将cursor移到所点击的值
id = cursor.getInt(0); // 取得字段_id的值 ，游标选中的第一列
// 通知，数据选中
Toast.makeText(MainActivity.this, "--"+cursor.getString(1)+"--已选中", Toast.LENGTH_LONG).show();
}
});
}
public void showdia2(){
// test
// Toast.makeText(MainActivity.this, "数据", Toast.LENGTH_LONG).show();
dialog2=new diaedi(this,R.style.dialog,
new diaedi.DialogListener() {
@Override
public void onClick(View view) {
// TODO Auto-generated method stub
switch(view.getId()){
case R.id.edibu:{
edit();
dialog2.dismiss();
dialog.dismiss();
// 通知，数据修改成功
Toast.makeText(MainActivity.this, "数据已修改", Toast.LENGTH_LONG).show();
}
break;
case R.id.qu:{
dialog2.dismiss();
}
break;
default:
break;
}
}
} );
dialog2.show();
ediev1=(EditText)dialog2.findViewById(R.id.ediname);
ediev2=(EditText)dialog2.findViewById(R.id.ediprice);
ediev3=(EditText)dialog2.findViewById(R.id.edilow);
ediev4=(EditText)dialog2.findViewById(R.id.editime);
ediev5=(EditText)dialog2.findViewById(R.id.edinote);
ediev1.setText(cursor.getString(1)); // 取得字段Rec_text的值
ediev2.setText(cursor.getString(2));
ediev3.setText(cursor.getString(3));
ediev4.setText(cursor.getString(4));
ediev5.setText(cursor.getString(5));
}
//
public void showdia(){
dialog = new mydialog(this,R.style.dialog,
new mydialog.LeaveMyDialogListener() {
@Override
public void onClick(View view) {
// TODO Auto-generated method stub
switch(view.getId()){
case R.id.addbutton:
{
dialog.dismiss();
Intent in = new Intent();
in.setClassName( getApplicationContext(), "com.example.app_sql.Sql_add" );
startActivity( in );
}
break;
case R.id.insbutton:{
showdia2();
}
break;
case R.id.delbutton:
{
deleteRec();
dialog.dismiss();
// 通知，数据删除成功
Toast.makeText(MainActivity.this, "数据已删除", Toast.LENGTH_LONG).show();
}
break;
case R.id.daobutton:
{
genxin();
}
break;
default:
break;
}
}
});
dialog.show();
}
public void genxin(){
dataup=new Dataup();
try {
dataup.preReadCheck();
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
boolean d=dataup.getbool();
if(d){
//
// 加入新线程
new Thread(new Runnable(){
public void run(){
try {
leng = dataup.jisuqi();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String [][]shuju=new String[leng][5];
try {
shuju=dataup.readshuzu(leng);
System.out.println("ok");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
deletealldata();
for(int i=0;i<leng;i++){
add(shuju[i][0],shuju[i][1],shuju[i][2],shuju[i][3],shuju[i][4]);
}
}
}).start();
// 不在main线程里更新会有异常
cursor.requery();
Toast.makeText(MainActivity.this, "数据已全部更新，请重启", Toast.LENGTH_LONG).show();
}
else{
// 通知
Toast.makeText(MainActivity.this, "更新文件不存在", Toast.LENGTH_LONG).show();
}
}
@SuppressWarnings("deprecation")
public void add(String t1,String t2,String t3,String t4,String t5){
if (t1.equals("")||t2.equals(""))
// 空值不进行修改
{
Toast.makeText(this, "数据有空值", Toast.LENGTH_LONG).show();
return;
}
hp.insert(t1,Float.parseFloat(t2),Float.parseFloat(t3),t4,t5);
}
public void edit(){
if (ediev1.getText().toString().equals("")){
// 空值不进行修改
// 通知，数据修改失败
Toast.makeText(MainActivity.this, "数据修改失败", Toast.LENGTH_LONG).show();
return;
}
// 数据修改
hp.updata(id, ediev1.getText().toString(),Float.parseFloat(ediev2.getText().toString()),Float.parseFloat(ediev3.getText().toString()),ediev4.getText().toString(),ediev5.getText().toString());
// 控件更新
cursor.requery();
}
//删除记录
private void deleteRec()
{
hp.delete(id);
cursor.requery();
}
//根据名查询
private void queryRec()
{
String et=ev.getText().toString();
String args[]=new String[]{"%"+et+"%"};
System.out.println("---------------------");
System.out.println(args[0]);
cursor=hp.query(args);
@SuppressWarnings("deprecation")
SimpleCursorAdapter adapter=new SimpleCursorAdapter(
this,R.layout.lv_layout,
cursor,
new String[]{"GoodName","GoodPrice","GoodLow","DataTime","Note"},
new int[]{R.id.name,R.id.price,R.id.low,R.id.time,R.id.note}
);
listview.setAdapter(adapter);
}
public void deletealldata(){
hp.onUpgrade(hp.getReadableDatabase(),0,1);
}
// 按两下返回退出
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if(keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_DOWN)
{
if((System.currentTimeMillis()-exitTime) > 2000) //System.currentTimeMillis()无论何时调用，肯定大于2000
{
Toast.makeText(getApplicationContext(), "再按一次退出程序",Toast.LENGTH_SHORT).show();
exitTime = System.currentTimeMillis();
}
else
{
finish();
System.exit(0);
}
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
// 搜索键enter监听
public boolean dispatchKeyEvent(KeyEvent event) {
if(event.getKeyCode() == KeyEvent.KEYCODE_ENTER){
/*隐藏软键盘*/
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
if(inputMethodManager.isActive()){
inputMethodManager.hideSoftInputFromWindow(MainActivity.this.getCurrentFocus().getWindowToken(), 0);
}
queryRec();
return true;
}
return super.dispatchKeyEvent(event);
}
}