我试图Notify基于一些标准的用户.Multiple Notifications正在显示,Status Bar但我想Group the notification in single notification,当用户点击时Status Bar,我想检索该组中的所有通知.那可能吗?或者我必须保留PendingIntents这些通知?任何帮助将不胜感激.例如,如果两个朋友的生日在同一天出现,则应显示2个通知.我想结合这些通知,即在状态栏中不是2个通知,我想要一个,当用户点击它时,它应该有2个通知的信息.可能吗?
请参阅以下代码以显示通知.
public void displayNotification(BirthdayDetail detail)
{
NotificationCompat.Builder builder = new NotificationCompat.Builder(this.context);
builder.setSmallIcon(R.drawable.ic_launcher);
builder.setContentTitle(detail.getContactName());
builder.setContentText(detail.getContactBirthDate());
Intent resultIntent = new Intent(this.context, NotificationView.class);
resultIntent.putExtra("name", detail.getContactName());
resultIntent.putExtra("birthdate", detail.getContactBDate());
resultIntent.putExtra("picture_path", detail.getPicturePath());
resultIntent.putExtra("isContact", detail.isFromContact());
resultIntent.putExtra("notificationId", notificationId);
if(detail.isFromContact())
{
resultIntent.putExtra("phone_number", detail.getPhoneNumber());
}
PendingIntent resultPendingIntent = PendingIntent.getActivity(this.context, requestCode++,
resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(resultPendingIntent);
notificationManager
= (NotificationManager) this.context.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(notificationId, builder.build());
notificationId++;
}
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我是新来的Material Design 3。我试图理解并使用Android Views (XML). DynamicColors我想参考下图构建设计:
我无法理解如何使用设计令牌,例如 Surface 容器 md.sys.color.surface-container 来Android XML用作颜色background。我的基本设计主题文件如下:
<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Base.Theme.BasicM3App" parent="Theme.Material3.DynamicColors.DayNight">
</style>
<style name="Theme.BasicM3App" parent="Base.Theme.BasicM3App" />
</resources>
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和我的布局文件,我想使用colorSurface作为背景颜色:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:background="" <<<======== Here I want to use colorSurface for dynamic behavior
android:layout_weight="1">
Run Code Online (Sandbox Code Playgroud) 我对访问SQLiteDatabase. 它应该是一个连接或多个连接才能从多个线程访问。我已经阅读了很多文章,包括以下两篇。
/sf/answers/258291841/ http://touchlabblog.tumblr.com/post/24474398246/android-sqlite-locking
这两者都建议使用单一连接。甚至我自己对同一问题的回答也被 OP 接受了。我使用了Singleton访问SQLiteopenHelper类的方法。
但是在阅读了enableWriteAheadLogging哪些州的文档后我仍然感到困惑
此方法支持从同一数据库上的多个线程并行执行查询。它通过打开到数据库的多个连接并为每个查询使用不同的数据库连接来实现这一点。数据库日志模式也更改为允许写入与读取同时进行。
现在这是令人困惑的部分。如果我想从多个线程同时访问数据库,我可以Singleton访问SQLiteOpenHelper它,在我的理解中这意味着插入的串行执行,同时同步读取可以无错误地完成。但是上面的文档说,为了同时访问,enableWriteAheadLogging应该调用它返回创建多个连接。这是怎么回事??如果我getWritableDatabase()通过Singleton SQLiteOpenHelper从多个线程调用using来进行插入,这意味着什么?电话会是连续的吗?应该enableWriteAheadLogging叫?
请说清楚。
sqlite multithreading android sqliteopenhelper android-sqlite
我正在我的应用程序中使用LocationServices。在使用位置服务之前,我尝试验证具有所需设置的位置是否已打开,但我面临的问题SettingsClient.checkSettings始终是failing。请参阅我LocationRequest和LocationSettingRequest建造者:
位置请求
mLocationRequest = LocationRequest()
mLocationRequest.interval = interval
mLocationRequest.fastestInterval = interval
Log.v(TAG, "distance => $distance")
if(distance > 0) {
mLocationRequest.smallestDisplacement = distance
}
mLocationRequest.priority = LocationRequest.PRIORITY_HIGH_ACCURACY
buildLocationSettingsRequest()
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位置设置RequestBuilder
private fun buildLocationSettingsRequest() {
val builder = LocationSettingsRequest.Builder()
builder.addLocationRequest(mLocationRequest)
mLocationSettingsRequest = builder.build()
mSettingsClientInit = true
}
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我checkSettings要求
mSettingsClient.checkLocationSettings(mLocationSettingsRequest)
.addOnSuccessListener(this, object : OnSuccessListener<LocationSettingsResponse> {
override fun onSuccess(locationSettingsResponse: LocationSettingsResponse) {
Log.i(TAG, "LocationManager: All location settings are satisfied.");
mLocationCallback?.let {
fusedLocationClient?.requestLocationUpdates(mLocationRequest, mLocationCallback, Looper.myLooper()); …Run Code Online (Sandbox Code Playgroud) I have an app which has fragment and image button on that. The problem is it's working on and above 5.0 but not below 5.0. The min sdk version is 17.
Not getting what's wrong here. I am getting 2 exceptions.
One is RuntimeException for image button.
Second is ResourceNotFoundException for fab selector file.
Log : 1st exception --
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.siddhi.timetablelayout/com.example.siddhi.timetablelayout.MainActivity}: android.view.InflateException: Binary XML file line #16:
Error inflating class ImageButton
2nd exception --
Caused …
android android-resources inflate-exception binary-xml android-imagebutton
我LinearLayout是以RelativeLayout编程方式创建的.我想要做的是分配weigtsumin LinearLayout并想要设置layout_above属性.问题是weightSum可用的,LinearLayout.LayoutParams并且layout_above可用RelativeLayout.LayoutParams.目前,我在做
LinearLayout ll_menu_code = new LinearLayout(this);
ll_menu_code.setId(1001);
LinearLayout.LayoutParams parmas_ll_menu_code = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 2f);
parmas_ll_menu_code.setMargins(0, 20, 0, 0);
ll_menu_code.setLayoutParams(parmas_ll_menu_code);
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哪个设置了weightSum.怎么设置layout_above?应该如何设置这两个属性?
我想以xml编程方式创建以下布局
<LinearLayout
android:layout_below="@id/ll_menu_code"
android:id="@+id/ll_quantity"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="20dp"
android:weightSum="5">
Run Code Online (Sandbox Code Playgroud) android android-layout android-linearlayout android-relativelayout
这是我的问题:
git stash,但我之前没有执行过git add .。git stash.pop更改时,我发现该文件夹不在那里。发生了什么?有什么解决办法吗?
再次感谢。