Gestire una Activity tramite le dialogs

[Jordano]

devi farti un layout come alert_dialog_text_entry.xml nelle api demos e poi fare l'inflate di questo dentro al dialog come fa qui

// This example shows how to add a custom layout to an AlertDialog<br /> LayoutInflater factory = LayoutInflater.f<span class="forTooltip">rom</span>(this);<br /> final View textEntryView = factory.inflate(R.layout.alert_dialog_text_entry, null);<br /> return new AlertDialog.Builder(AlertDialogSamples.this)<br /> .setIcon(R.drawable.alert_dialog_icon)<br /> .setTitle(R.string.alert_dialog_text_entry)<br /> .setView(textEntryView)<br /> .setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {<br /> public void onClick(DialogInterface dialog, int whichButton) {<br /> <br /> /* User clicked OK so do some stuff */<br /> }<br /> })<br /> .setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {<br /> public void onClick(DialogInterface dialog, int whichButton) {<br /> <br /> /* User clicked cancel so do some stuff */<br /> }<br /> })<br /> .create();

​x

 

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// This example shows how to add a custom layout to an AlertDialog

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            LayoutInflater factory = LayoutInflater.from(this);

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            final View textEntryView = factory.inflate(R.layout.alert_dialog_text_entry, null);

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            return new AlertDialog.Builder(AlertDialogSamples.this)

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                .setIcon(R.drawable.alert_dialog_icon)

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                .setTitle(R.string.alert_dialog_text_entry)

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                .setView(textEntryView)

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                .setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {

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                    public void onClick(DialogInterface dialog, int whichButton) {

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                        /* User clicked OK so do some stuff */

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                    }

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                })

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                .setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {

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                    public void onClick(DialogInterface dialog, int whichButton) {

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​

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                        /* User clicked cancel so do some stuff */

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                    }

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                })

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                .create();

[Anular]

Perfetto, funziona!

Ora vorrei effettuare il check degli input inseriti.
Sto provando a impostare un addTextChangedListener

package com.android.quizzle;<br /> <br /> import android.app.Activity;<br /> import android.app.AlertDialog;<br /> import android.app.Dialog;<br /> import android.content.DialogInterface;<br /> import android.os.Bundle;<br /> import android.text.Editable;<br /> import android.text.TextWatcher;<br /> import android.view.KeyEvent;<br /> import android.view.LayoutInflater;<br /> import android.view.View;<br /> import android.view.View.OnClickListener;<br /> import android.widget.Button;<br /> import android.widget.EditText;<br /> import android.widget.TextView;<br /> <br /> <br /> public class SettingsActivity exten<span class="forTooltip">ds</span> Activity {<br /> final EditText p1 = (EditText) findViewById(R.id.EditText_Pwd1);<br /> final EditText p2 = (EditText) findViewById(R.id.EditText_Pwd2);<br /> final TextView error = (TextView) findViewById(R.id.TextView_PwdProblem);<br /> /** Called when the activity is first created. */<br /> private static final int Password_Dialog = 1;<br /> //preloading dialog<br /> @Override<br /> pr<span class="forTooltip">ot</span>ected Dialog onCreateDialog(int id) {<br /> <br /> switch (id) {<br /> case Password_Dialog:<br /> LayoutInflater factory = LayoutInflater.from(this);<br /> <br /> final View textEntryView = factory.inflate(R.layout.password, null);<br /> <br /> p2.addTextChangedListener(new TextWatcher() {<br /> @Override<br /> public void afterTextChanged(Editable s) {<br /> String strPass1 = p1.getText().toString();<br /> String strPass2 = p2.getText().toString();<br /> if (strPass1.equals(strPass2)) {<br /> error.setText(R.string.match);<br /> } else {<br /> error.setText(R.string.dismatch);<br /> }<br /> <br /> }<br /> @Override<br /> public void beforeTextChanged(CharSequence arg0,<br /> int arg1, int arg2, int arg3) {<br /> // TODO Auto-generated method stub<br /> <br /> }<br /> <br /> @Override<br /> public void onTextChanged(CharSequence arg0,<br /> int arg1, int arg2, int arg3) {<br /> // TODO Auto-generated method stub<br /> <br /> }});<br />

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package com.android.quizzle;

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​

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import android.app.Activity;

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import android.app.AlertDialog;

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import android.app.Dialog;

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import android.content.DialogInterface;

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import android.os.Bundle;

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import android.text.Editable;

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import android.text.TextWatcher;

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import android.view.KeyEvent;

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import android.view.LayoutInflater;

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import android.view.View;

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import android.view.View.OnClickListener;

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import android.widget.Button;

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import android.widget.EditText;

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import android.widget.TextView;

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​

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​

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public class SettingsActivity extends Activity {

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      final EditText p1 = (EditText) findViewById(R.id.EditText_Pwd1);

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      final EditText p2 = (EditText) findViewById(R.id.EditText_Pwd2);

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      final TextView error = (TextView) findViewById(R.id.TextView_PwdProblem);

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    /** Called when the activity is first created. */

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    private static final int Password_Dialog = 1;

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    //preloading dialog

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    @Override

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    protected Dialog onCreateDialog(int id) {

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        switch (id) {

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        case Password_Dialog:

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        LayoutInflater factory = LayoutInflater.from(this);

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        final View textEntryView = factory.inflate(R.layout.password, null);

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        p2.addTextChangedListener(new TextWatcher() {

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            @Override

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                             public void afterTextChanged(Editable s) {

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                                 String strPass1 = p1.getText().toString();

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                                 String strPass2 = p2.getText().toString();

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                                 if (strPass1.equals(strPass2)) {

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                                 error.setText(R.string.match);

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                                 } else {

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                                 error.setText(R.string.dismatch);

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                                 }

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                             }

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            @Override

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                            public void beforeTextChanged(CharSequence arg0,

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                                    int arg1, int arg2, int arg3) {

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                                // TODO Auto-generated method stub

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                            }

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​

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                            @Override

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                            public void onTextChanged(CharSequence arg0,

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                                    int arg1, int arg2, int arg3) {

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                                // TODO Auto-generated method stub

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                            }});

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Non credo però che vada li dove l'ho inserito, infatti se avvio l'app entra in crash!!

[Jordano]

ho notato ora che stai facendo un Activity di configurazione, osservando il titolo.

Magari lo sai già e vuoi fare col tuo metodo, però la butto li..

C'è già un framework per gestire l'inserimento e la modifica delle configurazioni per la tua applicazione come nome utente e password o quello che vuoi..

La vedi sempre in ogni applicazione Android quasi... si chiama PreferenceActivity



fai un file xml con le tue preference e poi crei una PreferenceActivity che te le caricherà in quella forma, garantendo poi anche il salvataggio dei dati inseriti e rendendoteli accessibili anche in altri punti dell'applicazione con le Preferences.