OptionMenuActivity

package cn.thewee.gourmetmeal.staff;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
import cn.thewee.gourmetmeal.staff.logic.DishesLogic;
import cn.thewee.gourmetmeal.staff.logic.ImgDownloadLogic;
import cn.thewee.gourmetmeal.staff.logic.NetLogic;
import cn.thewee.gourmetmeal.staff.logic.TableLogic;

public class OptionMenuActivity extends BaseActivity{
private static final String TAG = "OptionMenuActivity";
Button btn_netTest;
Button btn_updateOrder;
Button btn_updateTable;

ProgressDialog p_dialog;//进度条对话框
Thread t_update = null;
Handler my_handler = new Handler(){//自定义handler用于多线程UI交互
@Override
public void handleMessage(Message msg) {
//关闭对话框
if(p_dialog != null && p_dialog.isShowing()){
p_dialog.dismiss();
}

switch(msg.what){
case WHAT_LOADING_COMPLETED://读取更新完成
Toast.makeText(getApplicationContext(),
getString(R.string.update_complete),
Toast.LENGTH_SHORT)
.show();
break;
case WHAT_NET_AVAILABLE://网络正常
Toast.makeText(getApplicationContext(),
getString(R.string.net_available),
Toast.LENGTH_SHORT)
.show();
break;
case WHAT_NET_DISABLE://网络不可用
Toast.makeText(getApplicationContext(),
getString(R.string.net_disable),
Toast.LENGTH_SHORT)
.show();
break;
}
}
};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
p_dialog = new ProgressDialog(this);

}
//初始化控件
@Override
protected void initViews() {
this.setContentView(R.layout.options);

btn_netTest = (Button) this.findViewById(R.id.btn_netTest);
btn_updateOrder = (Button) this.findViewById(R.id.btn_updateOrder);
btn_updateTable = (Button) this.findViewById(R.id.btn_updateTable);

//配置监听器
OptionOnClickListener btnListener = new OptionOnClickListener();
btn_netTest.setOnClickListener(btnListener);
btn_updateOrder.setOnClickListener(btnListener);
btn_updateTable.setOnClickListener(btnListener);
}
class OptionOnClickListener implements OnClickListener{
@Override
public void onClick(View v) {
optionClick(v);
}
}

//按钮点击事件
public void optionClick(View view){

switch(view.getId()){
case R.id.btn_netTest://网络测试
//对话框文字
p_dialog
.setMessage(
getString(R.string.is_loading));

if(!p_dialog.isShowing())
p_dialog.show();
//开启线程测试
new Thread(){
@Override
public void run() {
if(NetLogic.netIsAvailable())
my_handler.sendEmptyMessage(WHAT_NET_AVAILABLE);
else
my_handler.sendEmptyMessage(WHAT_NET_DISABLE);
}
}.start();

break;
case R.id.btn_updateOrder://更新菜单
//对话框文字
p_dialog.
setMessage(
getString(
R.string.is_loading));

if(!p_dialog.isShowing())
p_dialog.show();
//开启新线程更新
if(t_update ==null || !t_update.isAlive()){
t_update = new Thread(){
@Override
public void run() {
//更新菜单内容
DishesLogic dishesLogic = new DishesLogic();
dishesLogic.updateMenu(getApplicationContext());
//下载图片
ImgDownloadLogic imgDown = new ImgDownloadLogic();
imgDown.downloadImg(getApplicationContext());

my_handler.sendEmptyMessage(WHAT_LOADING_COMPLETED);
}
};
t_update.setDaemon(true);
t_update.start();
}
break;
case R.id.btn_updateTable://更新桌子
//对话框文字
p_dialog.setMessage(getString(R.string.is_loading));

if(!p_dialog.isShowing())
p_dialog.show();
//开启新线程更新
if(t_update ==null || !t_update.isAlive()){
t_update = new Thread(){
@Override
public void run() {
TableLogic tableLogic = new TableLogic();
tableLogic.updateTableInfo(getApplicationContext());
my_handler.sendEmptyMessage(WHAT_LOADING_COMPLETED);
}
};
t_update.setDaemon(true);
t_update.start();
}
break;
}
}
@Override
protected void getExtras() {

}
}

<?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:orientation="vertical"
android:gravity="center"
android:background="@drawable/menu_background" >

<LinearLayout
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_margin="20dp"
android:gravity="center_vertical" >
<ImageView
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:scaleType="center"
android:src="@drawable/img_net"/>
<Button
android:id="@+id/btn_netTest"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:background="@drawable/btn_net_test"/>
</LinearLayout>

<LinearLayout
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_margin="20dp"
android:gravity="center_vertical" >
<ImageView
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:scaleType="center"
android:src="@drawable/img_order"/>
<Button
android:id="@+id/btn_updateOrder"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:background="@drawable/btn_update_menu"/>
</LinearLayout>

<LinearLayout
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_margin="20dp"
android:gravity="center_vertical" >
<ImageView
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:scaleType="center"
android:src="@drawable/img_table"/>
<Button
android:id="@+id/btn_updateTable"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:background="@drawable/btn_update_table"/>
</LinearLayout>
</LinearLayout>