如果单击警报框按钮，我想发送一条短信。单击复选框后，我有一个带有复选框的列表视图，在上面我选择了一个按钮，单击该按钮后，它显示一个警报框，其中包含带有“确定”警报集按钮的选定内容.我需要的是在单击确定按钮后，我必须发送带有所选内容的短信和电子邮件。我怎样才能做到这一点。
主要活动.java
public class MainActivity extends Activity implements FetchDataListener,OnClickListener
{
private static final int ACTIVITY_CREATE=0;
private ProgressDialog dialog;
ListView lv;
private List<Application> items;
private Button btnGetSelected;
//private ProjectsDbAdapter mDbHelper;
//private SimpleCursorAdapter dataAdapter;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list_item);
//mDbHelper = new ProjectsDbAdapter(this);
//mDbHelper.open();
//fillData();
//registerForContextMenu(getListView());
lv =(ListView)findViewById(R.id.list);
btnGetSelected = (Button) findViewById(R.id.btnget);
btnGetSelected.setOnClickListener(this);
initView();
}
private void initView()
{
// show progress dialog
dialog = ProgressDialog.show(this, "", "Loading...");
String url = "http://dry-brushlands-3645.herokuapp.com/posts.json";
FetchDataTask task = new FetchDataTask(this);
task.execute(url);
//mDbHelper.open();
//Cursor projectsCursor = mDbHelper.fetchAllProjects();
//startManagingCursor(projectsCursor);
// Create an array to specify the fields we want to display in the list (only TITLE)
//String[] from = new String[]{ProjectsDbAdapter.KEY_TITLE};
// and an array of the fields we want to bind those fields to (in this case just text1)
//int[] to = new int[]{R.id.text1};
/* Now create a simple cursor adapter and set it to display
SimpleCursorAdapter projects =
new SimpleCursorAdapter(this, R.layout.activity_row, projectsCursor, from, to);
setListAdapter(projects);
*/
// create the adapter using the cursor pointing to the desired data
//as well as the layout information
/*dataAdapter = new SimpleCursorAdapter(
this, R.layout.activity_row,
projectsCursor,
from,
to,
0);
setListAdapter(dataAdapter);
*/
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
//getMenuInflater().inflate(R.menu.activity_main, menu);
super.onCreateOptionsMenu(menu);
MenuInflater mi = getMenuInflater();
mi.inflate(R.menu.activity_main, menu);
return true;
}
@Override
public boolean onMenuItemSelected(int featureId, MenuItem item) {
createProject();
return super.onMenuItemSelected(featureId, item);
}
private void createProject() {
Intent i = new Intent(this, ProjectEditActivity.class);
startActivityForResult(i, ACTIVITY_CREATE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
initView();
}
@Override
public void onFetchComplete(List<Application> data)
{
this.items = data;
// dismiss the progress dialog
if ( dialog != null )
dialog.dismiss();
// create new adapter
ApplicationAdapter adapter = new ApplicationAdapter(this, data);
// set the adapter to list
lv.setAdapter(adapter);
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
CheckBox chk = (CheckBox) view.findViewById(R.id.checkbox);
Application bean = items.get(position);
if (bean.isSelected()) {
bean.setSelected(false);
chk.setChecked(false);
} else {
bean.setSelected(true);
chk.setChecked(true);
}
}
});
}
// Toast is here...
private void showToast(String msg) {
Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
}
@Override
public void onFetchFailure(String msg)
{
// dismiss the progress dialog
if ( dialog != null )
dialog.dismiss();
// show failure message
Toast.makeText(this, msg, Toast.LENGTH_LONG).show();
}
@Override
public void onClick(View v) {
StringBuffer sb = new StringBuffer();
// Retrive Data from list
for (Application bean : items) {
if (bean.isSelected()) {
sb.append(Html.fromHtml(bean.getContent()));
sb.append(",");
}
}
showAlertView(sb.toString().trim());
}
@SuppressWarnings("deprecation")
private void showAlertView(String str) {
AlertDialog alert = new AlertDialog.Builder(this).create();
if (TextUtils.isEmpty(str)) {
alert.setTitle("Not Selected");
alert.setMessage("No One is Seleceted!!!");
} else {
// Remove , end of the name
String strContactList = str.substring(0, str.length() - 1);
alert.setTitle("Selected");
alert.setMessage(strContactList);
}
alert.setButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
try {
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("sms_body", "default");
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);
} catch (Exception e) {
Toast.makeText(getApplicationContext(),
"SMS faild, please try again later!",
Toast.LENGTH_LONG).show();
e.printStackTrace();
}
dialog.dismiss();
}
});
/*buttonSendSms_intent.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
String smsNumber = edittextSmsNumber.getText().toString();
String smsText = edittextSmsText.getText().toString();
Uri uri = Uri.parse("smsto:" + smsNumber);
Intent intent = new Intent(Intent.ACTION_SENDTO, uri);
intent.putExtra("sms_body", smsText);
startActivity(intent);
}});*/
alert.show();
}
@Override
public void onBackPressed() {
AlertDialog alert_back = new AlertDialog.Builder(this).create();
alert_back.setTitle("Quit?");
alert_back.setMessage("Are you sure want to Quit?");
alert_back.setButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alert_back.setButton2("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
MainActivity.this.finish();
}
});
alert_back.show();
}
@Override
public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
// TODO Auto-generated method stub
}
}
这里 alert.setbutton 是关键按钮，从那里我只需要，我已经输入了短信代码，它不能正常工作。
在这里我也添加了我的异步任务。
public class FetchDataTask extends AsyncTask<String, Void, String>
{
private final FetchDataListener listener;
private String msg;
public FetchDataTask(FetchDataListener listener)
{
this.listener = listener;
}
@Override
protected String doInBackground(String... params)
{
if ( params == null )
return null;
// get url from params
String url = params[0];
try
{
// create http connection
HttpClient client = new DefaultHttpClient();
HttpGet httpget = new HttpGet(url);
// connect
HttpResponse response = client.execute(httpget);
// get response
HttpEntity entity = response.getEntity();
if ( entity == null )
{
msg = "No response from server";
return null;
}
// get response content and convert it to json string
InputStream is = entity.getContent();
return streamToString(is);
}
catch ( IOException e )
{
msg = "No Network Connection";
}
return null;
}
@Override
protected void onPostExecute(String sJson)
{
if ( sJson == null )
{
if ( listener != null )
listener.onFetchFailure(msg);
return;
}
try
{
// convert json string to json object
JSONObject jsonObject = new JSONObject(sJson);
JSONArray aJson = jsonObject.getJSONArray("post");
// create apps list
List<Application> apps = new ArrayList<Application>();
for ( int i = 0; i < aJson.length(); i++ )
{
JSONObject json = aJson.getJSONObject(i);
Application app = new Application();
app.setContent(json.getString("content"));
// add the app to apps list
apps.add(app);
}
//notify the activity that fetch data has been complete
if ( listener != null )
listener.onFetchComplete(apps);
}
catch ( JSONException e )
{
e.printStackTrace();
msg = "Invalid response";
if ( listener != null )
listener.onFetchFailure(msg);
return;
}
}
/**
* This function will convert response stream into json string
*
* @param is
* respons string
* @return json string
* @throws IOException
*/
public String streamToString(final InputStream is) throws IOException
{
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try
{
while ( (line = reader.readLine()) != null )
{
sb.append(line + "\n");
}
}
catch ( IOException e )
{
throw e;
}
finally
{
try
{
is.close();
}
catch ( IOException e )
{
throw e;
}
}
return sb.toString();
}
}