英文:
show a simple toast after click on imagebutton on android widget
问题
这是 XML 部分代码的翻译:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#09C"
android:padding="@dimen/widget_margin">
<ImageButton
android:id="@+id/widget_btn"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:srcCompat="@drawable/on" />
</RelativeLayout>
这是 Java 类的翻译:
public class wow_shortcut extends AppWidgetProvider {
static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
int appWidgetId) {
CharSequence widgetText = wow_shortcutConfigureActivity.loadTitlePref(context, appWidgetId);
// 构建 RemoteViews 对象
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.wow_shortcut);
// 指示小部件管理器更新小部件
appWidgetManager.updateAppWidget(appWidgetId, views);
}
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
// 可能有多个小部件处于活动状态,因此更新所有小部件
for (int appWidgetId : appWidgetIds) {
updateAppWidget(context, appWidgetManager, appWidgetId);
}
}
@Override
public void onDeleted(Context context, int[] appWidgetIds) {
// 当用户删除小部件时,删除与之关联的首选项
for (int appWidgetId : appWidgetIds) {
wow_shortcutConfigureActivity.deleteTitlePref(context, appWidgetId);
}
}
@Override
public void onEnabled(Context context) {
// 创建第一个小部件时的相关功能
}
@Override
public void onDisabled(Context context) {
// 禁用最后一个小部件时的相关功能
}
}
希望对你有所帮助!祝你有美好的一天!
英文:
I need help in adding action to a homescreen widget I want to add to my app.
I've searched for a solution on many thread, but none of them worked for me.
All I want to do is toast a simple message after a click on an image button on my widget.
If this works, I want to run a service intent after a click on this button.
I would be wonderful if you could add the code that you wrote in java.
This is the code of the xml widget
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#09C"
android:padding="@dimen/widget_margin">
<ImageButton
android:id="@+id/widget_btn"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:srcCompat="@drawable/on" />
</RelativeLayout>
This is the class itself:
public class wow_shortcut extends AppWidgetProvider {
static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
int appWidgetId) {
CharSequence widgetText = wow_shortcutConfigureActivity.loadTitlePref(context, appWidgetId);
// Construct the RemoteViews object
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.wow_shortcut);
// Instruct the widget manager to update the widget
appWidgetManager.updateAppWidget(appWidgetId, views);
}
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
// There may be multiple widgets active, so update all of them
for (int appWidgetId : appWidgetIds) {
updateAppWidget(context, appWidgetManager, appWidgetId);
}
}
@Override
public void onDeleted(Context context, int[] appWidgetIds) {
// When the user deletes the widget, delete the preference associated with it.
for (int appWidgetId : appWidgetIds) {
wow_shortcutConfigureActivity.deleteTitlePref(context, appWidgetId);
}
}
@Override
public void onEnabled(Context context) {
// Enter relevant functionality for when the first widget is created
}
@Override
public void onDisabled(Context context) {
// Enter relevant functionality for when the last widget is disabled
}
}
Thank you and have a good day!
答案1
得分: 1
从Android启动一个服务
- 创建一个继承自
BroadcastReceiver
的类,并将其添加到AndroidManifest文件中。 - 创建一个
PendingIntent
来启动广播,并将其附加到小部件视图。
val intent = Intent(context, MyBroadcast::class.java)
val pendingIntent = PendingIntent.getBroadcast(
context,
MY_REQUEST_CODE,
intent,
PendingIntent.FLAG_UPDATE_CURRENT
)
setOnClickPendingIntent(R.id.widget_btn, pendingIntent)
- 在你的
BroadcastReceiver
中启动服务。
class MyBroadcastReceiver : BroadcastReceiver() {
override fun onReceive(context: Context?, intent: Intent?) {
// 创建新的Intent来启动你的服务。
}
}
- 由于后台限制,服务可能会被停止,你可能需要将其调至前台。
注意:这段代码是用Kotlin编写的,但在Java中也类似。
英文:
Starting a service from Android
-
Create a class that extends
BroadcastReceiver
and add it to the AndroidManifest file. -
Create a.
PendingIntent
to start a Broadcast. And attach it to the widget view.val intent = Intent(context, MyBroadcast::class.java) val pendingIntent = PendingIntent.getBroadcast( context, MY_REQUEST_CODE, intent, PendingIntent.FLAG_UPDATE_CURRENT ) setOnClickPendingIntent(R.id.widget_btn, pendingIntent)
-
In your
BroadcastReceiver
, start the service.class MyBroadcastReceiver : BroadcastReceiver() { override fun onReceive(context: Context?, intent: Intent?) { // Create new Intent to start your service. } }
-
The Service may be stopped due to background restrictions and you may need to bring it in the foreground.
Note: the code is in Kotlin, but it should be similar in Java.
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