5.3 添加移除黑名单号码

最新推荐文章于 2025-07-14 10:35:52 发布

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最新推荐文章于 2025-07-14 10:35:52 发布

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分类专栏：手机安全卫士笔记

本文链接：https://blog.youkuaiyun.com/yangxingting/article/details/13277281

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本文介绍了一个管理通讯录应用的核心功能，包括如何通过点击按钮显示自定义对话框来添加或删除黑名单号码，并根据不同的拦截模式进行操作。应用通过加载数据、更新界面、实现分页以及设置滚动监听事件等功能，提供了完整的通讯录管理体验。

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1.点击添加按钮显示自定义对话框布局

2.给自定义对话框中控件设置点击事件

3.刷新界面要移除集合中对应的数据

public class CallSmsSafeActivity extends Activity {

private String TAG= "CallSmsSafeActivity";

private ListView lv_callsms_safe;

private BlackNumberDao dao;

private BlackNumberBean blackNumberBean;

private List<BlackNumberBean> numberList ;

private TextView tv_number;

private TextView tv_mode;

private ImageView iv_delete;

private MyAdapter adpter;

private LinearLayout loading;

private int currentNumber=0; //分页参数

private int maxNumber=20;

private int totalCount;

private boolean loadingflag;

/**

* 创建消息处理机制

private Handler handler= new Handler() {

@Override

public void handleMessage(Message msg) {

super.handleMessage(msg);

Log. i(TAG , "主线程跟新界面" );

loading.setVisibility(View. GONE); //加载到布局时移除

if( adpter== null){

adpter= new MyAdapter();

lv_callsms_safe.setAdapter( adpter);

} else{

//复用旧的数据适配器，通知数据适配器数据跟新了

adpter.notifyDataSetChanged();

loadingflag= false; //标记已加载完

}

};

/**

* Activity创建时

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout. activity_callsms_safe);

lv_callsms_safe=(ListView) findViewById(R.id.lv_callsms_safe );

loading=(LinearLayout) findViewById(R.id. loading);

loading.setVisibility(View. VISIBLE); //加载布局可见

dao= new BlackNumberDao( this); //首次加载数据

fillDate();

totalCount= dao.getMaxNumber();

Log. i(TAG , "数据库总条目数:" +totalCount );

//给lv 注册滚动监听事件

lv_callsms_safe.setOnScrollListener( new OnScrollListener() {

// 滚动状态发生改变的时候调用的方法

@Override

public void onScrollStateChanged(AbsListView view, int scrollState) {

switch (scrollState) {

case OnScrollListener. SCROLL_STATE_IDLE: // listview静止状态

// 获取最后一个可见条目对应的集合里面数据的位置. 从0开始

int lastPosition = lv_callsms_safe.getLastVisiblePosition();

// 获取集合的大小从1开始

int total = numberList.size();

if (lastPosition == (total - 1)) {

Log. i(TAG , "拖动到了最后一个条目,加载更多的数据..." );

if ( loadingflag) {

Toast. makeText(getApplicationContext(), "正在加载数据.",0).show();

}

currentNumber += maxNumber;

if ( currentNumber >= totalCount ) {

Toast. makeText(getApplicationContext(), "没有更多的数据了",0).show();

return;

}

fillDate();

}

break;

case OnScrollListener.SCROLL_STATE_TOUCH_SCROLL: //手指触摸滚动

break;

case OnScrollListener. SCROLL_STATE_FLING: //手指已经离开惯性滑翔状态

break;

}

//滚动的时候调用的方法

@Override

public void onScroll(AbsListView view, int firstVisibleItem,

int visibleItemCount, int totalItemCount) {

}

});

}

/**

* 查询数据

private void fillDate() {

loadingflag= true; //标记正在加载数据

new Thread(){

public void run() {

//numberList=dao.getPraNumberInfo(currentPage, pageSize);

if ( numberList == null) {

numberList = dao.getPraNumberInfo( currentNumber, maxNumber);

} else {

numberList.addAll( dao.getPraNumberInfo( currentNumber, maxNumber));

}

handler.sendEmptyMessage(0);

};

}.start();

}

/**

* 创建适配器

public class MyAdapter extends BaseAdapter{

@Override

public int getCount() {

return numberList.size();

}

@Override

public View getView( final int position, View convertView, ViewGroup parent) {

//复用历史缓存view对象,减少内存消耗,防止内存溢出

View view= null;

ViewHolder holder= null;

if(convertView!= null&&convertView instanceof RelativeLayout){ //RelativeLayout:填充view的布局类型

view=convertView;

Log. i(TAG , "复用历史缓存view:" +position);

holder=(ViewHolder) view.getTag(); //复用孩子的id

} else{

view = View. inflate(getApplicationContext(), R.layout.list_callsms_item,null );

Log. i(TAG , "创建新的view对象:" +position);

holder= new ViewHolder(); //初始化view持有者

//只是在创建view的时候去寻找控件,然后把控件的id存起来

holder. tv_number=(TextView) view.findViewById(R.id.tv_number );

holder. tv_mode=(TextView) view.findViewById(R.id.tv_mode );

holder. iv_delete=(ImageView) view.findViewById(R.id.iv_delete );

view.setTag(holder); //将holder存到view中

}

//非常消耗内存

//View view = View.inflate(getApplicationContext(), R.layout.list_callsms_item,null);

blackNumberBean = numberList.get(position);

holder. tv_number.setText( "号码:"+blackNumberBean .getNumber());

String mode= blackNumberBean.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 if( "3".equals(mode)){

holder. tv_mode.setText( "全部拦截");

}

//给删除图标注册点击事件

holder. iv_delete.setOnClickListener( new OnClickListener() {

@Override

public void onClick(View v) {

Log. i(TAG , "删除号码:" +blackNumberBean .getNumber());

dao.delete( blackNumberBean.getNumber());

numberList.remove(position); //集合中移除listview对应的条目

adpter.notifyDataSetChanged(); //刷新界面

}

});

return view;

}

@Override

public Object getItem( int position) {

return null;

}

@Override

public long getItemId( int position) {

return 0;

}

/**

* 创建view持有者,将需要找的控件的应用放在 viewholder中

static class ViewHolder{

TextView tv_number;

TextView tv_mode;

ImageView iv_delete;

}

private EditText et_blacknumber;

private RadioGroup gr_mode;

private Button bt_ok;

private Button bt_cancle;

/**

* 添加按钮触发的点击事件

public void addBlackNumber(View view){

AlertDialog.Builder builder= new Builder( this); //创建对话框建设者

final AlertDialog dialog = builder.create(); //创建对话框

//将自定义对话框布局填充到对话框上

View contentView=View. inflate(this, R.layout.dialog_enter_blacknumber , null);

et_blacknumber=(EditText) contentView.findViewById(R.id.et_blacknumber );

gr_mode=(RadioGroup) contentView.findViewById(R.id.radioGroup1 );

bt_ok=(Button) contentView.findViewById(R.id. bt_ok);

bt_cancle=(Button) contentView.findViewById(R.id. bt_cancle);

//给取消按钮设置点击事件

bt_cancle.setOnClickListener( new OnClickListener() {

@Override

public void onClick(View v) {

Log. i(TAG , "取消对话框" );

dialog.dismiss();

}

});

//给确定按钮选择点击事件

bt_ok.setOnClickListener( new OnClickListener() {

@Override

public void onClick(View v) {

String et_number=et_blacknumber.getText().toString().trim();

if(TextUtils. isEmpty(et_number)){

Toast. makeText(getApplicationContext(), "输入的号码不能为空" , 0).show();

return;

}

if( dao.find(et_number)){ //如果输入的号码已经存在

Toast. makeText(getApplicationContext(), "输入的号码已经在黑名单中" , 0).show();

return;

}

//判断选择的模式

String mode= "3";

switch ( gr_mode.getCheckedRad ioButtonId()) {

case R.id. rb_phone: // 1. 电话拦截

mode= "1";

break;

case R.id. rb_sms: // 2. 短信拦截

mode= "2" ;

break;

case R.id. rb_all: // 3. 全部拦截

mode= "3";

break;

}

//添加黑名单号吗

dao.add(et_number,mode);

//将新添加的黑名单号码添加到集合中,显示到界面上最上面一个条目

numberList.add(0, new BlackNumberBean(0, et_number, mode));

adpter.notifyDataSetChanged(); // 刷新界面

dialog.dismiss();

}

});

dialog.setView(contentView, 0, 0, 0, 0);

dialog.show();

}