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J'ai étendu la classe DialogPreference et espérer que je pourrais faire fonctionner une solution comme this.Exception de classe Android Cast lors de l'extension de DialogPreference
Je voudrais mettre en œuvre ma classe TimePreference dans mon système, mais lorsque vous appelez le PreferenceActivity je reçois un temps d'exécution exception
04-15 16:47:31.555: W/MediaPlayer(28689): mediaplayer went away with unhandled events
04-15 16:47:31.555: W/MediaPlayer(28689): mediaplayer went away with unhandled events
04-15 16:47:31.594: D/libEGL(28689): loaded /system/lib/egl/libGLES_android.so
04-15 16:47:31.609: D/libEGL(28689): loaded /vendor/lib/egl/libEGL_POWERVR_SGX540_120.so
04-15 16:47:31.633: D/libEGL(28689): loaded /vendor/lib/egl/libGLESv1_CM_POWERVR_SGX540_120.so
04-15 16:47:31.637: D/libEGL(28689): loaded /vendor/lib/egl/libGLESv2_POWERVR_SGX540_120.so
04-15 16:47:31.793: D/OpenGLRenderer(28689): Enabling debug mode 0
04-15 16:47:36.938: D/AndroidRuntime(28689): Shutting down VM
04-15 16:47:36.938: W/dalvikvm(28689): threadid=1: thread exiting with uncaught exception (group=0x40a4c1f8)
04-15 16:47:37.024: E/AndroidRuntime(28689): FATAL EXCEPTION: main
04-15 16:47:37.024: E/AndroidRuntime(28689): java.lang.RuntimeException: Unable to start activity ComponentInfo{app.timer/app.timer.PrefsActivity}: java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.app.ActivityThread.access$600(ActivityThread.java:123)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.os.Handler.dispatchMessage(Handler.java:99)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.os.Looper.loop(Looper.java:137)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.app.ActivityThread.main(ActivityThread.java:4424)
04-15 16:47:37.024: E/AndroidRuntime(28689): at java.lang.reflect.Method.invokeNative(Native Method)
04-15 16:47:37.024: E/AndroidRuntime(28689): at java.lang.reflect.Method.invoke(Method.java:511)
04-15 16:47:37.024: E/AndroidRuntime(28689): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
04-15 16:47:37.024: E/AndroidRuntime(28689): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
04-15 16:47:37.024: E/AndroidRuntime(28689): at dalvik.system.NativeStart.main(Native Method)
04-15 16:47:37.024: E/AndroidRuntime(28689): Caused by: java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.app.SharedPreferencesImpl.getString(SharedPreferencesImpl.java:205)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.Preference.getPersistedString(Preference.java:1396)
04-15 16:47:37.024: E/AndroidRuntime(28689): at app.timer.TimePreference.onSetInitialValue(TimePreference.java:110)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.Preference.dispatchSetInitialValue(Preference.java:1312)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.Preference.onAttachedToHierarchy(Preference.java:1124)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.PreferenceGroup.addPreference(PreferenceGroup.java:156)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.PreferenceGroup.addItemFromInflater(PreferenceGroup.java:97)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.PreferenceGroup.addItemFromInflater(PreferenceGroup.java:38)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.GenericInflater.rInflate(GenericInflater.java:488)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.GenericInflater.rInflate(GenericInflater.java:493)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.GenericInflater.inflate(GenericInflater.java:326)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.GenericInflater.inflate(GenericInflater.java:263)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.PreferenceManager.inflateFromResource(PreferenceManager.java:269)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.preference.PreferenceActivity.addPreferencesFromResource(PreferenceActivity.java:1403)
04-15 16:47:37.024: E/AndroidRuntime(28689): at app.timer.PrefsActivity.onCreate(PrefsActivity.java:12)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.app.Activity.performCreate(Activity.java:4465)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
04-15 16:47:37.024: E/AndroidRuntime(28689): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
04-15 16:47:37.024: E/AndroidRuntime(28689): ... 11 more
04-15 16:47:37.137: D/dalvikvm(28689): GC_CONCURRENT freed 230K, 4% free 9362K/9671K, paused 2ms+13ms
Mon pref.xml ressemble à ceci et fonctionne si je retire mon TimePreference
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
<PreferenceCategory
android:key="time_settings"
android:title="@string/time_settings"
android:summary="@string/time_settings_summary">
<app.timer.TimePreference
android:key="synchronize"
android:title="@string/synchronize"
android:summary="@string/synchronize_summary"
android:icon="@drawable/ic_dialog_time" />
</PreferenceCategory>
<PreferenceCategory
android:key="sound_cat"
android:title="@string/sound_cat"
android:summary="@string/sound_cat_summary">
<CheckBoxPreference
android:key="mute"
android:title="@string/mute"
android:summary="@string/mute_summary"
android:icon="@drawable/ic_audio_vol" />
<ListPreference
android:key="beep_interval"
android:title="@string/beep_interval"
android:summary="@string/beep_interval_summary"
android:entries="@array/beep_interval_options"
android:entryValues="@array/beep_interval_option_values"
android:defaultValue="2"
android:icon="@drawable/ic_audio_alarm" />
</PreferenceCategory>
<PreferenceCategory
android:key="screen"
android:title="@string/screen_cat"
android:summary="@string/screen_cat_summary">
<CheckBoxPreference
android:key="screen_dim"
android:title="@string/screen_dim"
android:summary="@string/screen_dim_summary"
android:icon="@drawable/ic_menu_view" />
<ListPreference
android:key="format"
android:title="@string/format"
android:summary="@string/format_summary"
android:entries="@array/format_options"
android:entryValues="@array/format_option_values"
android:defaultValue="0"
android:icon="@drawable/ic_menu_edit" />
<CheckBoxPreference
android:key="indigo"
android:title="@string/indigo"
android:summary="@string/indigo_summary"
android:icon="@drawable/brightness" />
</PreferenceCategory>
<PreferenceCategory
android:title="@string/about"
android:summary="@string/about_summary" >
<ListPreference
android:key="version_build"
android:enabled="false"
android:title="version 1.01"
android:summary="build 3" />
</PreferenceCategory>
</PreferenceScreen>
Voici ce que je la classe TimePreference
package app.timer;
import android.content.Context;
import android.content.res.TypedArray;
import android.preference.DialogPreference;
import android.text.format.DateFormat;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.TimePicker;
public class TimePreference extends DialogPreference {
protected int lastHour=0;
protected int lastMinute=0;
protected boolean is24HourFormat;
protected TimePicker picker=null;
protected TextView timeDisplay;
public TimePreference(Context ctxt) {
this(ctxt, null);
}
public TimePreference(Context ctxt, AttributeSet attrs) {
this(ctxt, attrs, 0);
}
public TimePreference(Context ctxt, AttributeSet attrs, int defStyle) {
super(ctxt, attrs, defStyle);
is24HourFormat = DateFormat.is24HourFormat(ctxt);
setPositiveButtonText("Set");
setNegativeButtonText("Cancel");
}
@Override
public String toString() {
if(is24HourFormat) {
return ((lastHour < 10) ? "0" : "")
+ Integer.toString(lastHour)
+ ":" + ((lastMinute < 10) ? "0" : "")
+ Integer.toString(lastMinute);
} else {
int myHour = lastHour % 12;
return ((myHour == 0) ? "12" : ((myHour < 10) ? "0" : "") + Integer.toString(myHour))
+ ":" + ((lastMinute < 10) ? "0" : "")
+ Integer.toString(lastMinute)
+ ((lastHour >= 12) ? " PM" : " AM");
}
}
@Override
protected View onCreateDialogView() {
picker=new TimePicker(getContext().getApplicationContext());
return(picker);
}
@Override
protected void onBindDialogView(View v) {
super.onBindDialogView(v);
picker.setIs24HourView(is24HourFormat);
picker.setCurrentHour(lastHour);
picker.setCurrentMinute(lastMinute);
}
@Override
public void onBindView(View view) {
View widgetLayout;
int childCounter = 0;
do {
widgetLayout = ((ViewGroup) view).getChildAt(childCounter);
childCounter++;
} while (widgetLayout.getId() != android.R.id.widget_frame);
((ViewGroup) widgetLayout).removeAllViews();
timeDisplay = new TextView(widgetLayout.getContext());
timeDisplay.setText(toString());
((ViewGroup) widgetLayout).addView(timeDisplay);
super.onBindView(view);
}
@Override
protected void onDialogClosed(boolean positiveResult) {
super.onDialogClosed(positiveResult);
if (positiveResult) {
picker.clearFocus();
lastHour=picker.getCurrentHour();
lastMinute=picker.getCurrentMinute();
String time=String.valueOf(lastHour)+":"+String.valueOf(lastMinute);
if (callChangeListener(time)) {
persistString(time);
timeDisplay.setText(toString());
}
}
}
@Override
protected Object onGetDefaultValue(TypedArray a, int index) {
return(a.getString(index));
}
@Override
protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
String time=null;
if (restoreValue) {
if (defaultValue==null) {
time=getPersistedString("00:00");
}
else {
time=getPersistedString(defaultValue.toString());
}
}
else {
if (defaultValue==null) {
time="00:00";
}
else {
time=defaultValue.toString();
}
if (shouldPersist()) {
persistString(time);
}
}
String[] timeParts=time.split(":");
lastHour=Integer.parseInt(timeParts[0]);
lastMinute=Integer.parseInt(timeParts[1]);;
}
}
L'erreur doit être à TimePreference.java:110 –