Android AppWidget未接收AppWidget\u启用意图
我正在尝试使用AlarmManager类创建我的第一个AppWidget,这样我可以比每30分钟更新一次更频繁。我将此作为设置小部件的基础,但由于某些原因,我无法正确开始更新。似乎我从未收到任何APPWIDGET_启用的意图,这会在我的AppWidgetProvider中触发OneEnabled事件回调 以下是我的AppWidgetProvider的清单定义:Android AppWidget未接收AppWidget\u启用意图,android,android-intent,android-appwidget,Android,Android Intent,Android Appwidget,我正在尝试使用AlarmManager类创建我的第一个AppWidget,这样我可以比每30分钟更新一次更频繁。我将此作为设置小部件的基础,但由于某些原因,我无法正确开始更新。似乎我从未收到任何APPWIDGET_启用的意图,这会在我的AppWidgetProvider中触发OneEnabled事件回调 以下是我的AppWidgetProvider的清单定义: <receiver android:name="com.myapp.android.appwidget.M
<receiver
android:name="com.myapp.android.appwidget.MarketTimingAppWidgetProvider"
android:label="@string/appwidget_markettiming_label">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
<action android:name="@string/appwidget_markettiming_updateintent" />
</intent-filter>
<meta-data android:name="android.appwidget.provider"
android:resource="@xml/appwidget_markettiming_info" />
</receiver>
public class MarketTimingAppWidgetProvider extends AppWidgetProvider {
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
final int N = appWidgetIds.length;
Log.d("myLogger", "onUpdate");
// Perform this loop procedure for each App Widget that belongs to this provider
for (int i=0; i<N; i++) {
int appWidgetId = appWidgetIds[i];
Log.d("myLogger", "Updating Widget: " + appWidgetId);
updateWidget(context, appWidgetManager, appWidgetId);
}
}
@Override
public void onEnabled(Context context) {
super.onEnabled(context);
Log.d("myLogger", "onEnabled running");
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 1);
alarmManager.setRepeating(AlarmManager.RTC, calendar.getTimeInMillis(),
1000, createClockIntent(context));
}
public void onDisabled(Context context) {
super.onDisabled(context);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(createClockIntent(context));
}
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
Log.d("myLogger", "Intent Received " + intent.getAction());
String widgetIntent = context.getResources().getString(R.string.appwidget_markettiming_updateintent);
// This code fires when my custom intent is received
if(widgetIntent.equals(intent.getAction())) {
ComponentName thisAppWidget = new ComponentName(context.getPackageName(), getClass().getName());
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
int ids[] = appWidgetManager.getAppWidgetIds(thisAppWidget);
for(int appWidgetId: ids) {
updateWidget(context, appWidgetManager, appWidgetId);
}
}
}
private void updateWidget(Context context, AppWidgetManager appWidgetManager, int appWidgetId) {
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.appwidget_markettiming);
views.setTextViewText(R.id.widget_text, "Update: " +
DateFormat.getDateTimeInstance(
DateFormat.LONG, DateFormat.LONG).format(new Date()));
// Tell the AppWidgetManager to perform an update on the current app widget
appWidgetManager.updateAppWidget(appWidgetId, views);
}
private PendingIntent createClockIntent(Context context) {
String updateIntent = context.getResources().getString(R.string.appwidget_markettiming_updateintent);
Log.d("myLogger", "my intent: " + updateIntent);
Intent intent = new Intent(updateIntent);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
return pendingIntent;
}
以下是我的AppWidgetProvider的代码:
<receiver
android:name="com.myapp.android.appwidget.MarketTimingAppWidgetProvider"
android:label="@string/appwidget_markettiming_label">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
<action android:name="@string/appwidget_markettiming_updateintent" />
</intent-filter>
<meta-data android:name="android.appwidget.provider"
android:resource="@xml/appwidget_markettiming_info" />
</receiver>
public class MarketTimingAppWidgetProvider extends AppWidgetProvider {
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
final int N = appWidgetIds.length;
Log.d("myLogger", "onUpdate");
// Perform this loop procedure for each App Widget that belongs to this provider
for (int i=0; i<N; i++) {
int appWidgetId = appWidgetIds[i];
Log.d("myLogger", "Updating Widget: " + appWidgetId);
updateWidget(context, appWidgetManager, appWidgetId);
}
}
@Override
public void onEnabled(Context context) {
super.onEnabled(context);
Log.d("myLogger", "onEnabled running");
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 1);
alarmManager.setRepeating(AlarmManager.RTC, calendar.getTimeInMillis(),
1000, createClockIntent(context));
}
public void onDisabled(Context context) {
super.onDisabled(context);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(createClockIntent(context));
}
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
Log.d("myLogger", "Intent Received " + intent.getAction());
String widgetIntent = context.getResources().getString(R.string.appwidget_markettiming_updateintent);
// This code fires when my custom intent is received
if(widgetIntent.equals(intent.getAction())) {
ComponentName thisAppWidget = new ComponentName(context.getPackageName(), getClass().getName());
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
int ids[] = appWidgetManager.getAppWidgetIds(thisAppWidget);
for(int appWidgetId: ids) {
updateWidget(context, appWidgetManager, appWidgetId);
}
}
}
private void updateWidget(Context context, AppWidgetManager appWidgetManager, int appWidgetId) {
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.appwidget_markettiming);
views.setTextViewText(R.id.widget_text, "Update: " +
DateFormat.getDateTimeInstance(
DateFormat.LONG, DateFormat.LONG).format(new Date()));
// Tell the AppWidgetManager to perform an update on the current app widget
appWidgetManager.updateAppWidget(appWidgetId, views);
}
private PendingIntent createClockIntent(Context context) {
String updateIntent = context.getResources().getString(R.string.appwidget_markettiming_updateintent);
Log.d("myLogger", "my intent: " + updateIntent);
Intent intent = new Intent(updateIntent);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
return pendingIntent;
}
公共类MarketTimeingAppWidgetProvider扩展了AppWidgetProvider{
公共void onUpdate(上下文上下文,AppWidgetManager AppWidgetManager,int[]AppWidgetId){
final int N=appWidgetIds.length;
Log.d(“myLogger”、“onUpdate”);
//对属于此提供商的每个应用程序小部件执行此循环过程
对于(int i=0;i您的清单中有错误。此元素中的操作名称:
<action android:name="@string/appwidget_markettiming_updateintent" />
应替换为实际字符串,而不是引用。因此应如下所示:
<action android:name="com.myapp.android.appwidget.action.MARKETTIMING_UPDATE" />
或者
元素中的values/something.xml中的任何内容
问题是BroadcastReceiver没有从AlarmManager接收广播。我用您的代码创建了一个项目,在清单中只替换了这个字符串(当然,还向values/strings.xml添加了适当的值),所有这些都可以正常工作
此外,您可能希望仅用System.currentTimeMillis()替换alarmManager.setRepeating()
的第二个参数+1000
并删除所有与日历相关的额外内容。显然,从模拟器中卸载它,然后重新安装它就成功了。现在,当我添加一个小部件时,会收到APPWIDGET_启用意图,当我删除它时,APPWIDGET_禁用意图会像我预期的那样被触发。我仍然有一个问题,即警报被触发anager实际上并没有像我预期的那样激发我的自定义意图,但这是我需要研究的另一个问题。Hmm,出于某种原因,我没有得到这个意图,但至少很高兴知道代码的结构是我认为应该的。小部件上的TextView是否每秒更新一次?不,只更新一次。现在我睡觉了,但没有omorrow将尝试花时间更详细地查看代码。我目前也在学习使用应用程序小部件,因此将一起查找错误。:)所以我发现,当我从emulator中完全卸载应用程序,然后重新安装它时,启用的事件就会触发。我想这意味着我真的不知道什么时候会触发这个意图。我想任何时候都可以将小部件的第一个实例添加到主屏幕上。如果我将其删除并再次添加,我会想象e应该再次激发启用的意图。你是对的,我发现这是我的第二个问题的根源。我想我只是想在配置中变得太花哨了:)。尽管如此,我不完全确定为什么这不能像我预期的那样工作,因为我可以在清单中的任何其他地方使用字符串资源。我也不知道为什么会这样与清单的其他部分或xml资源的工作方式不同。另一方面,在代码中使用字符串常量更简单、更清晰。因此更好。:)