————————-main.java———————————
package com.example.de;import java.util.List;import android.app.AlertDialog;import android.app.AlertDialog.Builder;import android.content.DialogInterface;import android.os.Bundle;import android.support.v7.app.ActionBarActivity;import android.text.TextUtils;import android.util.Log;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;public class MainActivity extends ActionBarActivity {public static final String TAG = "MainActivity";private ListView lv_callsms_safe;private List<BlackNumberInfo> infos;private BlackNumberDao dao;private CallSmsSafeAdapter adapter;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);lv_callsms_safe = (ListView) findViewById(R.id.lv_callsms_safe);dao = new BlackNumberDao(this);infos = dao.findAll();adapter = new CallSmsSafeAdapter();lv_callsms_safe.setAdapter(adapter);}private class CallSmsSafeAdapter extends BaseAdapter{@Overridepublic int getCount() {return infos.size();}//有多少个条目被显示，这个方法就会被调用多少次@Overridepublic View getView(final int position, View convertView, ViewGroup parent) {View view;ViewHolder holder;//1.减少内存中view对象创建的个数if(convertView==null){Log.i(TAG,"创建新的view对象："+position);//把一个布局文件转化成 view对象。view = View.inflate(getApplicationContext(), R.layout.list_item_callsms, null);//2.减少子孩子查询的次数 内存中对象的地址。holder = new ViewHolder();holder.tv_number = (TextView) view.findViewById(R.id.tv_black_number);holder.tv_mode = (TextView) view.findViewById(R.id.tv_block_mode);holder.iv_delete = (ImageView) view.findViewById(R.id.iv_delete);//当孩子生出来的时候找到他们的引用，存放在记事本，，放在父亲的口袋view.setTag(holder);}else{Log.i(TAG,"厨房有历史的view对象，复用历史缓存的view对象："+position);view = convertView;holder = (ViewHolder) view.getTag();//5%}holder.tv_number.setText(infos.get(position).getNumber());String mode = infos.get(position).getMode();if("1".equals(mode)){holder.tv_mode.setText("电话拦截");}else if("2".equals(mode)){holder.tv_mode.setText("短信拦截");}else{holder.tv_mode.setText("全部拦截");}holder.iv_delete.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {AlertDialog.Builder builder = new Builder(MainActivity.this);builder.setTitle("警告");builder.setMessage("确定要删除这条记录么？");builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {//删除数据库的内容dao.delete(infos.get(position).getNumber());//更新界面。infos.remove(position);//通知listview数据适配器更新adapter.notifyDataSetChanged();}});builder.setNegativeButton("取消", null);builder.show();}});return view;}@Overridepublic Object getItem(int position) {return null;}@Overridepublic long getItemId(int position) {return 0;}}/*** view对象的容器*记录孩子的内存地址。*相当于一个记事本*/static class ViewHolder{TextView tv_number;TextView tv_mode;ImageView iv_delete;}private EditText et_blacknumber;private CheckBox cb_phone;private CheckBox cb_sms;private Button bt_ok;private Button bt_cancel;public void addBlackNumber(View view){AlertDialog.Builder builder = new Builder(this);final AlertDialog dialog = builder.create();View contentView = View.inflate(this, R.layout.dialog_add_blacknumber, null);et_blacknumber = (EditText) contentView.findViewById(R.id.et_blacknumber);cb_phone = (CheckBox) contentView.findViewById(R.id.cb_phone);cb_sms = (CheckBox) contentView.findViewById(R.id.cb_sms);bt_cancel = (Button) contentView.findViewById(R.id.cancel);bt_ok = (Button) contentView.findViewById(R.id.ok);dialog.setView(contentView, 0, 0, 0, 0);dialog.show();bt_cancel.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {dialog.dismiss();}});bt_ok.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {String blacknumber = et_blacknumber.getText().toString().trim();if(TextUtils.isEmpty(blacknumber)){Toast.makeText(getApplicationContext(), "黑名单号码不能为空", 0).show();return;}String mode ;if(cb_phone.isChecked()&&cb_sms.isChecked()){//全部拦截mode = "3";}else if(cb_phone.isChecked()){//电话拦截mode = "1";}else if(cb_sms.isChecked()){//短信拦截mode = "2";}else{Toast.makeText(getApplicationContext(), "请选择拦截模式", 0).show();return;}//数据被加到数据库dao.add(blacknumber, mode);//更新listview集合里面的内容。BlackNumberInfo info = new BlackNumberInfo();info.setMode(mode);info.setNumber(blacknumber);infos.add(0, info);//通知listview数据适配器数据更新了。adapter.notifyDataSetChanged();dialog.dismiss();}});}}
——————————-BlackNumberDao.java————–数据库的增删改查代码—————–
三亚呀——赴一个蓝天碧海。
