我有一个联系人列表，用户可以从中选择联系人并将这些联系人发送到其他班级，当用户回到活动时，选择的联系人保持选中状态，我比较活动中的列表，并敬酒他们，吐司给我ans，但是然后复选框也没有被检查，如何做以使它们始终被检查..
MainActivity.java
package com.example.smscampaign;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.ActionBar;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Parcelable;
import android.provider.ContactsContract;
import android.telephony.gsm.SmsManager;
import android.util.SparseBooleanArray;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class MainActivity extends Activity implements OnItemClickListener {
ArrayList<String> name1 = new ArrayList<String>();
static ArrayList<String> phno1 = new ArrayList<String>();
ArrayList<String> phno0 = new ArrayList<String>();
MyAdapter ma;
Button send;
String[] cellArray = null;
int[] str;
int v = 0;
String contacts;
static int check1;
ListView lv;
int index;
int top;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
setContentView(R.layout.get);
TextView txt = (TextView) findViewById(R.id.textView1);
getAllCallLogs(this.getContentResolver());
lv = (ListView) findViewById(R.id.lv);
ma = new MyAdapter();
lv.setAdapter(ma);
lv.setOnItemClickListener(this);
lv.setItemsCanFocus(false);
lv.setTextFilterEnabled(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
getMenuInflater().inflate(R.menu.contact_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
switch (item.getItemId()) {
case R.id.addPage:
break;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onBackPressed() {
// TODO Auto-generated method stub
if(SmsSend.conct != null)
{
StringBuilder b= SmsSend.conct;
//Toast.makeText(getBaseContext(), b, Toast.LENGTH_LONG).show();
// b3.append("");
contacts = b.toString() ;
cellArray = contacts.split(";"); //matching the phno with selected contacts came from activity a
for(int i=0; i<cellArray.length;i++)
{
for(int j=0; j< phno1.size();j++){
if(cellArray[i].equals(phno1.get(j)) ){
Toast.makeText(getBaseContext(), cellArray[i] + "hii" +phno1.get(j), Toast.LENGTH_LONG)
.show();
ma.cb.setChecked(ma.mCheckStates.get(j, true));
break;
}
}
}
}
ArrayList<String> mylist = new ArrayList<String>();
StringBuilder checkedcontacts = new StringBuilder();
System.out.println(ma.mCheckStates.size());
for (int i = 0; i < name1.size(); i++)
{
if (ma.mCheckStates.get(i) == true) {
phno0.add(phno1.get(i).toString());
checkedcontacts.append(name1.get(i).toString());
checkedcontacts.append("\n");
ma.cb.setChecked( true);
} else {
System.out.println("..Not Checked......"
+ name1.get(i).toString());
}
}
Intent returnIntent = new Intent();
returnIntent.putStringArrayListExtra("name", phno0);
setResult(RESULT_OK, returnIntent);
finish();
}
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
// TODO Auto-generated method stub
ma.toggle(arg2);
}
public void getAllCallLogs(ContentResolver cr) {
Cursor phones = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null,
null, null);
while (phones.moveToNext()) {
String phoneNumber = phones
.getString(phones
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
String name = phones
.getString(phones
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
System.out.println(phoneNumber);
name1.add(name);
phno1.add(phoneNumber);
}
phones.close();
}
class MyAdapter extends BaseAdapter implements
CompoundButton.OnCheckedChangeListener {
public SparseBooleanArray mCheckStates;
LayoutInflater mInflater;
TextView tv1, tv;
CheckBox cb;
MyAdapter() {
mCheckStates = new SparseBooleanArray(name1.size());
mInflater = (LayoutInflater) MainActivity.this
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
// Save ListView state
@Override
public int getCount() {
// TODO Auto-generated method stub
return name1.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(final int position, View convertView,
ViewGroup parent) {
// TODO Auto-generated method stub
View vi = convertView;
if (convertView == null)
vi = mInflater.inflate(R.layout.row, null);
tv = (TextView) vi.findViewById(R.id.textView1);
tv1 = (TextView) vi.findViewById(R.id.textView2);
cb = (CheckBox) vi.findViewById(R.id.checkBox1);
tv.setText(name1.get(position));
tv1.setText(phno1.get(position));
cb.setTag(position);
cb.setChecked(mCheckStates.get(position, false));
cb.setOnCheckedChangeListener(this);
Collections.sort(name1);
return vi;
}
public boolean isChecked(int position) {
return mCheckStates.get(position, false);
}
public void setChecked(int position, boolean isChecked) {
mCheckStates.put(position, isChecked);
}
public void toggle(int position) {
setChecked(position, !isChecked(position));
}
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
// TODO Auto-generated method stub
mCheckStates.put((Integer) buttonView.getTag(), isChecked);
}
}
}
SmsSend.java
package com.example.smscampaign;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import android.app.ActionBar;
import android.app.Activity;
import android.app.Dialog;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;
public class SmsSend extends Activity implements OnClickListener {
BroadcastReceiver smsSentReciver, smsSentDelivery;
EditText ed1, ed2;
static int ResultCode = 12;
static ArrayList<String> sendlist = new ArrayList<String>();
Button b1, b2, b3, b4;
TextView txt;
static StringBuilder conct = new StringBuilder();
String contacts = "";
String delim = ";";
public static String Name;
TextView ed;
int i=0;
DataBaseHandler notasdb = new DataBaseHandler(this);
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.smssend);
ed1 = (EditText) findViewById(R.id.editText1);
ed2 = (EditText) findViewById(R.id.editText2);
b1 = (Button) findViewById(R.id.button1);
b1.setOnClickListener(this);
b2 = (Button) findViewById(R.id.button2);
b2.setOnClickListener(this);
b3 = (Button) findViewById(R.id.button3);
b3.setOnClickListener(this);
b4 = (Button) findViewById(R.id.button4);
b4.setOnClickListener(this);
txt = (TextView) findViewById(R.id.textnum2);
ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
unregisterReceiver(smsSentReciver);
unregisterReceiver(smsSentDelivery);
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
smsSentReciver = new BroadcastReceiver() {
@Override
public void onReceive(Context arg0, Intent arg1) {
// TODO Auto-generated method stub
switch (getResultCode()) {
case Activity.RESULT_OK:
Toast.makeText(getBaseContext(), "sms has been sent",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
Toast.makeText(getBaseContext(), "Generic Fail",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_NO_SERVICE:
Toast.makeText(getBaseContext(), "No Service",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_NULL_PDU:
Toast.makeText(getBaseContext(), "Null PDU",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_RADIO_OFF:
Toast.makeText(getBaseContext(), "Radio Off",
Toast.LENGTH_SHORT).show();
break;
default:
break;
}
}
};
smsSentDelivery = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
switch (getResultCode()) {
case Activity.RESULT_OK:
Toast.makeText(getBaseContext(), "Sms Delivered",
Toast.LENGTH_SHORT).show();
break;
case Activity.RESULT_CANCELED:
Toast.makeText(getBaseContext(), "Sms not Delivered",
Toast.LENGTH_SHORT).show();
break;
}
}
};
registerReceiver(smsSentReciver, new IntentFilter("SMS_SENT"));
registerReceiver(smsSentDelivery, new IntentFilter("SMS_DELIVERED"));
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.button3:
Name = ed1.getText().toString();
Intent a = new Intent(SmsSend.this, MainActivity.class);
startActivityForResult(a, ResultCode);
break;
case R.id.button4:
Intent file = new Intent(SmsSend.this, File_Selecter.class);
startActivity(file);
break;
case R.id.button1:
break;
case R.id.button2:
Log.i("SMS", "Sendlist Size: " + sendlist.size());
boolean diditwork1 = true;
try {
String Name = ed1.getText().toString();
SmsManager smsManager = SmsManager.getDefault();
String msg = ed2.getText().toString();
PendingIntent piSend = PendingIntent.getBroadcast(this, 0,
new Intent("SMS_SENT"), 0);
PendingIntent piDelivered = PendingIntent.getBroadcast(this, 0,
new Intent("SMS_DELIVERED"), 0);
Log.i("SMS", "contacts: " + contacts);
String[] cellArray;
// b3.append("");
contacts = conct.toString() ;
Toast.makeText(getBaseContext(), contacts, Toast.LENGTH_LONG)
.show();
cellArray = contacts.split(";");
for (int a1 = 0; a1 < cellArray.length; a1++) {
// smsManager.sendTextMessage(cellArray[a1].toString(),
// null,
// msg, piSend, piDelivered);
}
DataBaseHandler entry = new DataBaseHandler(SmsSend.this);
entry.open();
entry.entryCreate(Name, msg);
entry.close();
} catch (Exception e) {
diditwork1 = false;
String erroe = e.toString();
Dialog d = new Dialog(this);
d.setTitle("Dang it!");
TextView tv = new TextView(this);
tv.setText(erroe);
d.setContentView(tv);
d.show();
} finally {
if (diditwork1) {
Dialog d = new Dialog(this);
d.setTitle("Heck Yeah!");
TextView tv = new TextView(this);
tv.setText("Success");
d.setContentView(tv);
d.show();
}
}
ed1.setText("");
ed2.setText("");
break;
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == ResultCode) {
if (resultCode == RESULT_OK) {
//Intent t = getIntent();
sendlist = data.getStringArrayListExtra("name");
if (sendlist != null) {
for (int i = 0; i < sendlist.size(); i++) {
conct.append(sendlist.get(i).toString());
conct.append(delim);
}
}
}
i = sendlist.size();
txt.setText(Integer.toString(i));
if (resultCode == RESULT_CANCELED) {
}
}
}
}
答案 0 :(得分：0)
在复选框项目
上设置“android：checked =”true“