[android] 手机卫士黑名单功能（ListView结合SQLite增删改）详解手机开发

package com.qingguow.mobilesafe; 
import java.util.HashMap; 
import java.util.List; 
import java.util.Map; 
import android.app.Activity; 
import android.app.AlertDialog; 
import android.app.AlertDialog.Builder; 
import android.content.DialogInterface; 
import android.os.Bundle; 
import android.text.TextUtils; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.view.ViewGroup; 
import android.widget.BaseAdapter; 
import android.widget.Button; 
import android.widget.CheckBox; 
import android.widget.EditText; 
import android.widget.ImageView; 
import android.widget.ListView; 
import android.widget.TextView; 
import android.widget.Toast; 
import com.qingguow.mobilesafe.db.ado.BlackNumberAdo; 
/** 
* 通讯卫士 
*  
* @author taoshihan 
*  
*/ 
public class CallSmsSafeActivity extends Activity { 
private ListView listview; 
private List<Map<String, String>> infos; 
private BlackNumberAdo dao; 
private MyAdapter myAdapter; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_call_sms_safe); 
listview = (ListView) findViewById(R.id.lv_blacknumber); 
myAdapter=new MyAdapter(); 
dao = new BlackNumberAdo(this); 
infos = dao.findAll(); 
listview.setAdapter(myAdapter); 
// //添加100条测试数据 
// Random random=new Random(); 
// for(int i=1;i<=100;i++){ 
// ado.add("18805419000"+i, String.valueOf(random.nextInt(3)+1)); 
// } 
         
} 
class ViewHolder{ 
public TextView phoneView; 
public TextView modeView; 
public ImageView iv_delete; 
} 
private class MyAdapter extends BaseAdapter { 
@Override 
public int getCount() { 
// TODO Auto-generated method stub 
return infos.size(); 
} 
@Override 
public View getView(final int position, View convertView, ViewGroup parent) { 
View view; 
ViewHolder holder=new ViewHolder(); 
if(convertView==null){ 
view = View.inflate(CallSmsSafeActivity.this, 
R.layout.list_call_sms_safe_item, null); 
holder.phoneView=(TextView) view 
.findViewById(R.id.tv_main_phone); 
holder.modeView=(TextView) view 
.findViewById(R.id.tv_block_mode); 
holder.iv_delete=(ImageView) view.findViewById(R.id.iv_delete); 
view.setTag(holder); 
System.out.println("创建新的View对象"+position); 
}else{ 
view=convertView; 
holder=(ViewHolder) view.getTag(); 
System.out.println("使用历史View对象"+position); 
} 
holder.phoneView.setText(infos.get(position).get("phone")); 
switch (infos.get(position).get("mode")) { 
case "1": 
holder.modeView.setText("电话拦截"); 
break; 
case "2": 
holder.modeView.setText("短信拦截"); 
break; 
case "3": 
holder.modeView.setText("全部拦截"); 
break; 
default: 
break; 
} 
//删除条目 
holder.iv_delete.setOnClickListener(new OnClickListener() { 
@Override 
public void onClick(View v) { 
AlertDialog.Builder builder=new AlertDialog.Builder(CallSmsSafeActivity.this); 
builder.setTitle("警告"); 
builder.setMessage("是否确认删除？"); 
builder.setPositiveButton("确认", new DialogInterface.OnClickListener() { 
@Override 
public void onClick(DialogInterface dialog, int which) { 
infos.remove(position); 
myAdapter.notifyDataSetChanged(); 
dao.delete(infos.get(position).get("phone")); 
} 
}); 
builder.setNegativeButton("取消", null); 
builder.show(); 
} 
}); 
return view; 
} 
@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 0; 
} 
} 
private EditText blackNumber; 
private CheckBox blockCall; 
private CheckBox blockSms; 
/** 
* 添加黑名单 
* @param v 
*/ 
public void addCallSmsSafe(View v) { 
AlertDialog.Builder builder=new AlertDialog.Builder(this); 
View view=View.inflate(this, R.layout.dialog_add_safe_sms, null); 
builder.setView(view); 
final AlertDialog alertDialog=builder.show(); 
Button submit=(Button) view.findViewById(R.id.bt_submit); 
Button cancel=(Button) view.findViewById(R.id.bt_cancel); 
blackNumber=(EditText) view.findViewById(R.id.et_black_number); 
blockCall=(CheckBox) view.findViewById(R.id.cb_block_call); 
blockSms=(CheckBox) view.findViewById(R.id.cb_block_sms); 
submit.setOnClickListener(new OnClickListener() { 
@Override 
public void onClick(View v) { 
String phone=blackNumber.getText().toString().trim(); 
String mode = "3"; 
if(TextUtils.isEmpty(phone)){ 
Toast.makeText(CallSmsSafeActivity.this, "请输入手机号码", 0).show(); 
} 
if(blockCall.isChecked()&&blockSms.isChecked()){ 
//全部拦截 
mode="3"; 
}else if(blockCall.isChecked()){ 
//电话拦截 
mode="1"; 
}else if(blockSms.isChecked()){ 
//短信拦截 
mode="2"; 
}else{ 
Toast.makeText(CallSmsSafeActivity.this, "请勾选拦截模式", 0).show(); 
} 
dao.add(phone, mode); 
Map<String, String> info=new HashMap<String, String>(); 
info.put("phone", phone); 
info.put("mode", mode); 
infos.add(0,info); 
myAdapter.notifyDataSetChanged(); 
alertDialog.dismiss(); 
} 
}); 
cancel.setOnClickListener(new OnClickListener() { 
@Override 
public void onClick(View v) { 
alertDialog.dismiss(); 
} 
}); 
} 
}