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Mastering Android Widget Development - Part5 - Final

Fri, 04/23/2010 - 07:15 | by gabor
SDK Version: 
M3

In this last part of the tutorial we will implement buttons to the appWidget, which will directly interact with the appWidget functionality.
We will have 2 buttons, a plus button to add one more day to the target date, and a minus button to decrease time left by one day.

First add the buttons to the countdownwidget.xml layout:

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <LinearLayout
  3.   xmlns:android="http://schemas.android.com/apk/res/android"
  4.   android:layout_width="wrap_content"
  5.   android:layout_height="wrap_content" android:orientation="vertical">
  6.  
  7. <TextView android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Time left"></TextView>
  8. <LinearLayout android:id="@+id/LinearLayout01"; android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal">

Mastering Android Widget Development - Part3

Fri, 04/09/2010 - 08:58 | by gabor
SDK Version: 
M3

I just come to a new discovery regarding widgets. I was developing an appwidget, which - just like the widgets we are trying to make in this series of tutorials - and tried it out multiple phones. Unfortunatelly on one of our test phones it didn't function properly. For random intervals it stopped to refresh, and it din't responded to button presses on the widget, only after 1-2 minutes. After hard work I discivered the following:

Buttons on appwiget can have their onclick flunctionality thorough RemoteViews.setOnClickPendingIntent(). This method gets a PendingIntent ap parametes to bound to a button. PendingIntent's can have 3 types created with

getActivity(Context, int, Intent, int)


getBroadcast(Context, int, Intent, int)


and getService(Context, int, Intent, int).

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