选择联系人打电话
package com.zymic.home;import java.util.ArrayList;import java.util.List;import android.app.AlertDialog;import android.app.ListActivity;import android.app.AlertDialog.Builder;import android.content.DialogInterface;import android.content.Intent;import android.database.Cursor;import android.net.Uri;import android.os.Bundle;import android.provider.ContactsContract;import android.view.View;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;public class ContactList extends ListActivity {private ListView contactList;//private Cursor contact_cursor;private Cursor iphonenumber_cursor;//private List<string> phonenumbers=new ArrayList<string>();private int contact_id;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);//实例化ListView;contactList=this.getListView();//异步的方法将联系人的信息放入contactList;new MyAsyncTask(this).execute(contactList);}@Overrideprotected void onListItemClick(ListView l, View v, int position, long id) {super.onListItemClick(l, v, position, id);//参数v是TextView tvid=(TextView) v.findViewById(R.id.idtv);contact_id=Integer.valueOf(tvid.getText().toString());//Toast.makeText(this, contact_id+"", Toast.LENGTH_SHORT).show();iphonenumber_cursor=getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,ContactsContract.CommonDataKinds.Phone.CONTACT_ID+"=?", new String[]{String.valueOf(contact_id)}, null);while(iphonenumber_cursor.moveToNext()){phonenumbers.add(iphonenumber_cursor.getString(iphonenumber_cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)));}//R.layout.dialogtextview应该是不带有布局的只有一个TextView;否则会报错的；//final ArrayAdapter arrayadapter=new ArrayAdapter(this, android.R.layout.test_list_item, phonenumbers);final ArrayAdapter arrayadapter=new ArrayAdapter(this, R.layout.dialogtextview, phonenumbers);//AlertDialog.Builder builder=new AlertDialog.Builder(this);builder.setTitle("电话号码");builder.setAdapter(arrayadapter, new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {//得到选择的电话号码；//此处选择实际上是在对话框的数据适配器中选择；String phone_number=(String) arrayadapter.getItem(which);//Intent intent=new Intent();intent.setAction(Intent.ACTION_CALL);intent.setData(Uri.parse("tel://"+phone_number));ContactList.this.startActivity(intent);}});builder.show();}}//package com.zymic.home;import android.content.Context;import android.database.Cursor;import android.os.AsyncTask;import android.provider.ContactsContract;import android.widget.BaseAdapter;import android.widget.ListView;public class MyAsyncTask extends AsyncTask<listview void baseadapter> {private Context context;private Cursor cursor;private ListView lv;//构造方法；public MyAsyncTask(Context context){this.context=context;}@Overrideprotected BaseAdapter doInBackground(ListView... params) {//根据ContactsContract.Contacts.CONTENT_URI这个Uri查询出所有联系人对象的cursor;cursor=context.getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null, null, null, null);//MyBaseAdapter myAdapter=new MyBaseAdapter(context,cursor);lv=params;if(myAdapter!=null){return myAdapter;}else{return null;}}@Overrideprotected void onPostExecute(BaseAdapter result) {super.onPostExecute(result);if(result!=null){lv.setAdapter(result);}}}//package com.zymic.home;import android.content.Context;import android.database.Cursor;import android.provider.ContactsContract;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.TextView;public class MyBaseAdapter extends BaseAdapter {private Context context;private Cursor cursor;//构造方法；public MyBaseAdapter(Context context,Cursor cursor){this.context=context;this.cursor=cursor;}@Overridepublic int getCount() {return cursor.getCount();}@Overridepublic Object getItem(int arg0) {return arg0;}@Overridepublic long getItemId(int arg0) {return arg0;}@Overridepublic View getView(int arg0, View arg1, ViewGroup arg2) {//得到LayoutInflater对象；LayoutInflater inflater = (LayoutInflater)context.getSystemService( Context.LAYOUT_INFLATER_SERVICE);//将布局文件转化为视图；View myview=inflater.inflate(R.layout.textview, null);//找到视图myview中的TextView控件tv；TextView tv=(TextView)myview.findViewById(R.id.tv);//找到视图myview中的TextView控件tv_id；TextView tvid=(TextView)myview.findViewById(R.id.idtv);if(cursor.moveToPosition(arg0)){tv.setText(cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)));tvid.setText(cursor.getInt(cursor.getColumnIndex(ContactsContract.Contacts._ID))+"");return myview;}return null;}}</listview></string></string>
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