Android联系人ContentProvider

package cn.wuxiaocheng.contentprovider; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.LayoutInflater; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.EditText; import android.widget.ListView; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private MyAdapter myAdapter; private List<ContactBean> contacts; private FloatingActionButton fab; private ListView lv; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); lv = (ListView) findViewById(R.id.lv); contacts = new ArrayList<ContactBean>(); myAdapter = new MyAdapter(this, contacts); lv.setAdapter(myAdapter); setContactsData(); add(); //点击 lv.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { ContactBean contact = myAdapter.getItem(position); showCheckChoose(contact); } }); //长按 lv.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() { @Override public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { ContactBean contact = myAdapter.getItem(position); deleteContact(contact); return true; } }); } private void deleteContact(final ContactBean contact) { new AlertDialog.Builder(this) .setTitle("删除该联系人") .setPositiveButton("确定", new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { ContactManager.deleteContact(MainActivity.this, contact); setContactsData(); } }) .setNegativeButton("取消", null) .show(); } private void showCheckChoose(final ContactBean contact) { new AlertDialog.Builder(this) .setItems(new String[]{"拨打电话", "发送短信", "修改联系人"}, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { switch (which) { case 0: Intent intentCall = new Intent(); intentCall.setAction(Intent.ACTION_CALL); intentCall.setData(Uri.parse("tel:" + contact.getNum())); startActivity(intentCall); break; case 1: Intent intentSend = new Intent(); intentSend.setAction(Intent.ACTION_SENDTO); intentSend.setData(Uri.parse("smsto:" + contact.getNum())); startActivity(intentSend); break; case 2: updateContact(contact); setContactsData(); break; default: break; } } }) .show(); } //悬浮按钮 private void add() { fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { addContext(); } }); } //添加联系人对话框 private void addContext() { //拿到自定义布局 final LayoutInflater inflate = getLayoutInflater(); View layout = inflate.inflate(R.layout.add_contact, null); final EditText ed_Name = (EditText) layout.findViewById(R.id.ed_Name); final EditText ed_Num = (EditText) layout.findViewById(R.id.ed_Num); AlertDialog dialog = new AlertDialog.Builder(this).create(); dialog.setView(layout); //添加联系人 DialogInterface.OnClickListener ls = new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { ContactBean contact = new ContactBean(); contact.setName(ed_Name.getText().toString()); contact.setNum(ed_Num.getText().toString()); ContactManager.addContact(MainActivity.this, contact); setContactsData(); } }; dialog.setButton(DialogInterface.BUTTON_POSITIVE, "确定", ls); dialog.setButton(DialogInterface.BUTTON_NEGATIVE, "取消", cancel); dialog.show(); } //更新联系人对话框 private void updateContact(final ContactBean oldContact) { View view = View.inflate(this, R.layout.custom, null); final EditText ed_Name = (EditText) view.findViewById(R.id.ed_Name); final EditText ed_Num = (EditText) view.findViewById(R.id.ed_Num); ed_Name.setText(oldContact.getName()); ed_Num.setText(oldContact.getNum()); new AlertDialog.Builder(this) .setTitle("修改联系人") .setView(view) .setPositiveButton("确定", new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { ContactBean contact = new ContactBean(); contact.setRawContactId(oldContact.getRawContactId()); contact.setName(ed_Name.getText() + ""); contact.setNum(ed_Num.getText() + ""); ContactManager.updateContact(MainActivity.this, contact); setContactsData(); } }) .setNegativeButton("取消", null) .show(); } //加载联系人 private void setContactsData() { List<ContactBean> contactData = ContactManager.getContacts(this); contacts.clear(); contacts.addAll(contactData); myAdapter.notifyDataSetChanged(); } //取消动作 DialogInterface.OnClickListener cancel = new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }; }