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2014/10/16 ¤W¤È 08:20:42

android Programming Glossary: observer

Android ViewPager - can't update dynamically

http://stackoverflow.com/questions/10849552/android-viewpager-cant-update-dynamically

is its own controller. A fragment can add a listener or an observer to another object in onCreate and then remove it in onDestroy..

how to listen for changes in Contact Database

http://stackoverflow.com/questions/1401280/how-to-listen-for-changes-in-contact-database

as it is and it works fine. package com.test.contentobserver import android.app.Activity import android.database.ContentObserver.. wrong. Are you making the changes through the cursor the observer is registered with Check that with the Observer function deliverSelfNotifications.. it returns false by default You may want to override that observer function with something like @Override public boolean deliverSelfNotifications..

What should I use Android AccountManager for? [closed]

http://stackoverflow.com/questions/2720315/what-should-i-use-android-accountmanager-for

threading. ContentProvider ties into ContentResolver's observer this means it is easy to notify views when content is changed..

Install apps silently, with granted INSTALL_PACKAGES permission

http://stackoverflow.com/questions/5803999/install-apps-silently-with-granted-install-packages-permission

public void initView ... pm.installPackage mPackageURI observer installFlags installerPackageName Next step is to inspect PackageManager.. void installPackage Uri packageURI IPackageInstallObserver observer int flags String installerPackageName But you will be able..

install / uninstall APKs programmatically (PackageManager vs Intents)

http://stackoverflow.com/questions/6813322/install-uninstall-apks-programmatically-packagemanager-vs-intents

a little while the result will be posted back to the given observer. An installation will fail if the calling context lacks the.. install. This can be a 'file ' or a 'content ' URI. @param observer An observer callback to get notified when the package installation.. can be a 'file ' or a 'content ' URI. @param observer An observer callback to get notified when the package installation is complete...

Android - Is there a broadcast action for volume changes?

http://stackoverflow.com/questions/6896746/android-is-there-a-broadcast-action-for-volume-changes

broadcast action but I did find you can hook up a content observer to get notified when the settings change volume of streams being.. true mSettingsContentObserver The content observer might look something like this public class SettingsContentObserver..

how to use LocalBroadcastManager?

http://stackoverflow.com/questions/8802157/how-to-use-localbroadcastmanager

... Register to receive messages. We are registering an observer mMessageReceiver to receive Intents with actions named custom..

Android ViewPager - can't update dynamically

http://stackoverflow.com/questions/10849552/android-viewpager-cant-update-dynamically

That's the advantage of having a fragment after all it is its own controller. A fragment can add a listener or an observer to another object in onCreate and then remove it in onDestroy thus managing the updates itself. You don't have to put all..

how to listen for changes in Contact Database

http://stackoverflow.com/questions/1401280/how-to-listen-for-changes-in-contact-database

share improve this question I have deployed your example as it is and it works fine. package com.test.contentobserver import android.app.Activity import android.database.ContentObserver import android.os.Bundle import android.provider.Contacts.People.. new MyContentObserver So you must be doing something else wrong. Are you making the changes through the cursor the observer is registered with Check that with the Observer function deliverSelfNotifications . it returns false by default You may.. that with the Observer function deliverSelfNotifications . it returns false by default You may want to override that observer function with something like @Override public boolean deliverSelfNotifications return true Make sure that People.CONTENT_URI..

What should I use Android AccountManager for? [closed]

http://stackoverflow.com/questions/2720315/what-should-i-use-android-accountmanager-for

ANR errors while not requiring you to explicitly handle threading. ContentProvider ties into ContentResolver's observer this means it is easy to notify views when content is changed Bottom line the framework AccountManager SyncAdapter ContentProvider..

Install apps silently, with granted INSTALL_PACKAGES permission

http://stackoverflow.com/questions/5803999/install-apps-silently-with-granted-install-packages-permission

it does is call to PackageManager 's installPackage function public void initView ... pm.installPackage mPackageURI observer installFlags installerPackageName Next step is to inspect PackageManager which is abstract class. You'll find installPackage.. with call to this method . @hide .... public abstract void installPackage Uri packageURI IPackageInstallObserver observer int flags String installerPackageName But you will be able to access this methods via reflection. If you are interested..

install / uninstall APKs programmatically (PackageManager vs Intents)

http://stackoverflow.com/questions/6813322/install-uninstall-apks-programmatically-packagemanager-vs-intents

PackageManager @hide Install a package. Since this may take a little while the result will be posted back to the given observer. An installation will fail if the calling context lacks the @link android.Manifest.permission#INSTALL_PACKAGES permission.. @param packageURI The location of the package file to install. This can be a 'file ' or a 'content ' URI. @param observer An observer callback to get notified when the package installation is complete. @link IPackageInstallObserver#packageInstalled.. packageURI The location of the package file to install. This can be a 'file ' or a 'content ' URI. @param observer An observer callback to get notified when the package installation is complete. @link IPackageInstallObserver#packageInstalled String..

Android - Is there a broadcast action for volume changes?

http://stackoverflow.com/questions/6896746/android-is-there-a-broadcast-action-for-volume-changes

volume broadcast share improve this question There is no broadcast action but I did find you can hook up a content observer to get notified when the settings change volume of streams being some of those settings. Register for the android.provider.Settings.System.CONTENT_URI.. .registerContentObserver android.provider.Settings.System.CONTENT_URI true mSettingsContentObserver The content observer might look something like this public class SettingsContentObserver extends ContentObserver public SettingsContentObserver..

how to use LocalBroadcastManager?

http://stackoverflow.com/questions/8802157/how-to-use-localbroadcastmanager

. @Override public void onCreate Bundle savedInstanceState ... Register to receive messages. We are registering an observer mMessageReceiver to receive Intents with actions named custom event name . LocalBroadcastManager.getInstance this .registerReceiver..