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POHow to make a PreferenceActivity launch a Dialog to set a custom preference
 

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  1. POHow to make a PreferenceActivity launch a Dialog to set a custom preference
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    <p>I have a working Preferences setup launched from a menu option. In the preferences I have setup a Custom Preference that must launch a dialog with 3 TextViews to set confirm and change a password. Now I do not know how to launch the dialog from the PreferenceActivity's onPreferenceClick. If I sound like a newby - I am, sorry!</p> <p>Here is my xml layout for the dialog popup:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;LinearLayout android:layout_height="match_parent" android:layout_width="match_parent" android:orientation="vertical" android:id="@+id/root" xmlns:android="http://schemas.android.com/apk/res/android"&gt; &lt;TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/TextView_Pwd1" android:text="@string/settings_oldpassword" android:textStyle="bold" /&gt; &lt;EditText android:layout_height="wrap_content" android:layout_width="match_parent" android:id="@+id/EditText_OldPwd" /&gt; &lt;TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/TextView_Pwd1" android:text="@string/settings_password" android:textStyle="bold" /&gt; &lt;EditText android:layout_height="wrap_content" android:layout_width="match_parent" android:id="@+id/EditText_Pwd1" android:inputType="textPassword" /&gt; &lt;TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/TextView_Pwd2" android:text="@string/settings_password2" android:textStyle="bold" /&gt; &lt;EditText android:layout_height="wrap_content" android:layout_width="match_parent" android:id="@+id/EditText_Pwd2" android:inputType="textPassword" /&gt; &lt;TextView android:layout_height="wrap_content" android:layout_width="match_parent" android:id="@+id/TextView_PwdProblem" android:textStyle="bold" android:gravity="center" /&gt; &lt;TextView android:id="@+id/TextView_PwdProblem" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:text="@string/settings_pwd_not_equal" /&gt; &lt;CheckBox android:id="@+id/checkShowPwdText" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/settings_showpwd_text" /&gt; </code></pre> <p>Here is my DialogChangePassword class for the dialog popup:</p> <pre><code>package biz.linsys.package; import android.app.Dialog; import android.content.Context; import android.content.SharedPreferences; import android.preference.DialogPreference; import android.text.Editable; import android.text.TextWatcher; import android.util.AttributeSet; import android.view.View; import android.widget.EditText; import android.widget.TextView; public class DialogChangePassword extends DialogPreference { private String strPass1; private String strPass2; public DialogChangePassword(Context context, AttributeSet attrs) { super(context, attrs); setDialogLayoutResource(R.layout.dialog_pwdchange); } @Override protected void onBindDialogView(View view) { Dialog pwdDialog = getDialog(); final EditText password1 = (EditText) pwdDialog.findViewById(R.id.EditText_Pwd1); final EditText password2 = (EditText) pwdDialog.findViewById(R.id.EditText_Pwd2); final TextView error = (TextView) pwdDialog.findViewById(R.id.TextView_PwdProblem); password2.addTextChangedListener(new TextWatcher() { @Override public void afterTextChanged(Editable s) { strPass1 = password1.getText().toString(); strPass2 = password2.getText().toString(); if (strPass1.equals(strPass2)) { error.setText(R.string.settings_pwd_equal); } else { error.setText(R.string.settings_pwd_not_equal); } } public void beforeTextChanged(CharSequence s, int start, int count, int after) {} public void onTextChanged(CharSequence s, int start, int before, int count) {} }); super.onBindDialogView(view); } @Override protected void onDialogClosed(boolean positiveResult) { if(!positiveResult) return; SharedPreferences.Editor editor = getEditor(); if (strPass1.equals(strPass2)) { editor.putString("password", strPass1); editor.commit(); } super.onDialogClosed(positiveResult); } } </code></pre> <p>This the PreferenceActivity class containing Custom Preference onPreferenceClick. This is where I need to call the dialog box to change the user password setting.</p> <pre><code>package biz.linsys.package; import android.content.Context; import android.os.Bundle; import android.preference.Preference; import android.preference.Preference.OnPreferenceClickListener; import android.preference.PreferenceActivity; public class Preferences extends PreferenceActivity { public static Context dialogContext; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.preferences); // Get the custom preference Preference customPref = (Preference) findPreference("customPref"); customPref.setOnPreferenceClickListener(new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { // [ NEED TO CALL DIALOG FROM HERE ] return false; } }); } } </code></pre>
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    1. USAlexander Dunaev
    1. USLukuluba
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    1. COSo you have preference activity, when clicked launches a dialogue box with buttons?
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      1. USJared Burrows
    2. CO@MasterJB: Yes, the dialog has buttons. I realise I didn't include the buttons in the XML Layout file.
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    3. COWell I asked that because, in the past, I have simply launched a small activity from a button that had the Dialogue GUI that was setup from within the manifest:"android:theme="@android:style/Theme.Dialog". You would do this by simply intenting to the activity and wit will popup in a Dialogue.
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