Android以编程方式向应用程序添加小部件警告消息 [英] Android Adding Widgets To App Programmatically Warning Message
问题描述
我已经创建了一个测试版Android启动器应用程序，并将其作为系统应用程序安装在有根设备上.该应用程序的目标是将所有已安装的小部件放置在viewpager的片段上.这已经成功完成；但是，每次显示新页面时，都会向用户显示一条消息.
I have created a test Android launcher application and installed it on a rooted device as a system app. The goal is for the app to place all installed widgets on fragments of a viewpager. This has been successfully accomplished; however, the user is shown a message every time a new page is shown.
即使用户选中了该框，每次添加小部件时仍会显示该消息.
Even if the user checks the box, the message is still shown every time a widget is to be added.
我通常遵循在android启动器中托管小部件中的步骤和将小部件添加到没有bindAppWidgetId()的启动器页面中将小部件添加到应用中.
I have generally followed the steps in Hosting widgets in an android launcher and Adding widgets to a launcher page without bindAppWidgetId() to add widgets to the app.
首先，我获得了扩展应用程序的类中的小部件列表，并将其存储在公共静态变量中
First I get a list of widgets in the class that extends application and store it in a public static variable
AppWidgetManager manager = AppWidgetManager.getInstance(this);
widgetList = manager.getInstalledProviders();
接下来，我将使用绑定意图来获取小部件
Next I use a bind intent to get the widget
appWidgetManager = AppWidgetManager.getInstance(this.getActivity());
appWidgetHost = new AppWidgetHost(this.getActivity(), APPWIDGET_HOST_ID);
int id = appWidgetHost.allocateAppWidgetId();
Intent bindIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_BIND);
bindIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, id);
bindIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER,LauncherExperiment.widgetList.get(mParam1).provider);
startActivityForResult(bindIntent, REQUEST_BIND_APPWIDGET);
然后在活动结果中创建窗口小部件
Then on activity result I create the widget
Bundle extras = data.getExtras();
int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
AppWidgetProviderInfo appWidgetInfo = appWidgetManager.getAppWidgetInfo(appWidgetId);
AppWidgetHostView hostView = appWidgetHost.createView(this.getActivity(), appWidgetId, appWidgetInfo);
hostView.setAppWidget(appWidgetId, appWidgetInfo);
// Add it on the layout you want
myLayout.addView(hostView);
同样，我已经通过更新清单建立了设备的根目录并将该应用程序安装为系统应用程序
Again, I have rooted the device and installed the app as a system app by updating the manifest
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test.launcherexperiment"
android:sharedUserId="android.uid.system" >
并按照此处的步骤操作:如何使用系统签名对我的应用程序进行签名键?
And by following the steps here: How can I sign my application with the system signature key?
因此，总而言之，我已经能够成功绑定应用并显示它们；但是问题在于警告消息最多应显示一次.
So in summary, I have been able to successfully bind apps and display them; but the issue is that the warning message should be displayed at most one time.
推荐答案
我们去了！使用此代码，只会向用户显示一次对话框.它还显示了以编程方式添加小部件的完整解决方案.
Here we go! With this code the user will only be shown the dialog once. It also shows a complete solution for adding widgets programmatically.
As I will be updating this on my github, look here for the latest version, https://github.com/DagW/FragmentHomescreen/blob/master/app/src/main/java/se/dw/fragmenthomescreen/widget/WidgetFragment.java.
但是出于存档目的，这是我现在的做法.
But for archiving purposes here is the way I do it now.
/**
* checkToAddWidget
* <p/>
* At the creation of WidgetFragment,
* add a default widget so that the homescreen is not empty
* shows how to add widgets programmatically
*/
private void checkToAddWidget () {
MainActivity m = (MainActivity) getActivity();
AppWidgetManager manager = m.getAppWidgetManager();
AppWidgetHost host = m.getAppWidgetHost();
List<AppWidgetProviderInfo> widgetList = manager.getInstalledProviders();
AppWidgetProviderInfo searchProvider = null;
AppWidgetProviderInfo search2Provider = null;
AppWidgetProviderInfo clockProvider = null;
for ( AppWidgetProviderInfo info : widgetList ) {
Log.d(TAG, info.provider.getPackageName() + " " + info.provider.getClassName());
if ( info.provider.getClassName().equals("com.google.android.googlequicksearchbox.SearchWidgetProvider") ) {
searchProvider = info;
break;
}
if ( info.provider.getClassName().equals("com.android.alarmclock.AnalogAppWidgetProvider") ) {
clockProvider = info;
}
if ( info.provider.getClassName().equals("com.android.alarmclock.DigitalAppWidgetProvider") ) {
clockProvider = info;
}
if ( info.provider.getClassName().equals("com.android.quicksearchbox.SearchWidgetProvider") ) {
search2Provider = info;
}
}
if ( searchProvider != null || search2Provider != null || clockProvider != null ) {
AppWidgetProviderInfo provider = null;
if ( searchProvider != null ) {
provider = searchProvider;
} else if ( clockProvider != null ) {
provider = clockProvider;
} else {
provider = search2Provider;
}
addProvider(m, host, manager, provider);
}
}
public void addProvider (MainActivity m, AppWidgetHost host, AppWidgetManager manager, AppWidgetProviderInfo provider) {
int id = host.allocateAppWidgetId();
boolean success = false;
success = manager.bindAppWidgetIdIfAllowed(id, provider.provider);
if ( success ) {
AppWidgetHostView hostView = host.createView(getActivity(), id, provider);
AppWidgetProviderInfo appWidgetInfo = manager.getAppWidgetInfo(id);
LauncherAppWidgetInfo info = new LauncherAppWidgetInfo(id);
info.setHostView(hostView);
info.getHostView().setAppWidget(id, appWidgetInfo);
ItemInfo launcherInfo = attachWidget(info);
if ( launcherInfo != null ) {
WidgetPersistance.addDesktopAppWidget(screen, launcherInfo);
}
} else {
Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_BIND);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, id);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER, provider.provider);
m.startActivityForResult(intent, MainActivity.REQUEST_BIND_APPWIDGET);
}
}
您可能还需要
<uses-permission android:name="android.permission.BIND_APPWIDGET"
tools:ignore="ProtectedPermissions"/>
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