Work around for an Android 2.0 bug - gravity=right make EditText hint disppears

2010-01-17T04:43:00.000-08:00

At lease in Vista/Android2.0/Simulator, the hint text you set for an EditText will disppear unexpected if you set the gravity=right at the same time.I searched on the web and found no solution for it. But some guys thought it's a bug of Android 1.5+.I tried and found that if the following attribute set at the same time, the hint will come back.my_edit_text.setSingleLine(false);But android:

Layout trick: use layout_weight to strech the view to fill up the screen

2009-10-26T07:06:00.000-07:00

My intent was to put a ListView in the top of the screen, 2 buttons in the bottom of the screen.I hope the 2 buttons could stay put at the bottom, no matter whether List was too short to fill the space left, or too long to have to be scrolled.The trick was to use layout_weight="1" for the ListView.

Marquee feature of TextView in Android 1.1R1

2009-03-18T22:26:00.001-07:00

In the newest release, Android 1.1 R1, android.widget.TextView begins to support marquee feature.It provides a value, marquee, for android:ellipsize, and a new attribute, android:marqueeRepeatLimit.However you could not make the TextView scrolling if you only set these 2 attributes.According to my testing, at least the following 3 attributes shall be set: android:ellipsize="marquee"

Browse Android Java source codes online

2009-03-11T07:36:00.000-07:00

Sometimes, it's necessary for developer to check the implementation of an API when the SDK documentation is not enough for understanding.However, Android source codes are approximately 2.1G in size. It's not handy to download and browse them in local PC.Fortunately, source.android.com supports GitWeb for web browsing of the source codes though it's not intuitive to find out which git ball the

Technical Key Points of Androidmine Project

2009-03-04T05:13:00.000-08:00

Here are the techincal key points I learned from the open source project, androidmine.Its current version is 0.7.1. Customize the activity theme (window without title)AndroidManifest.xml ...res/values/styles.xml 2. Set the conent view

Dimension Values of Android API

2009-02-28T06:21:00.000-08:00

The document of Android API 1.0 rc2You can create common dimensions to use for various screen elements by defining dimension values in XML. A dimension resource is a number followed by a unit of measurement. For example: 10px, 2in, 5sp. Here are the units of measurement supported by Android:px Pixels - corresponds to actual pixels on the screen.in Inches - based on the physical size of the

find out the version of ksh/dtksh in Solaris

2009-01-12T23:24:00.000-08:00

It took me quite some minutes to find out in Google how to find out the versions of ksh and dtksh in Solaris.1. Start a shell $ ksh or $ dtksh2. Enter vi mod $ set -o vi Note: The option is letter 'o' , not number zero "0".3. Press ESC to enter command mode4. Press Ctrl-VHere are outputs in Solaris 8 & 9$ Version M-11/16/88$ Version M-12/28/93

ScrollTextView - scrolling TextView for Android

2009-01-06T21:55:00.000-08:00

I wrote a class derived from Android.Widget.TextView to customize a TextView which text can be scrolled.The derived class, named ScrollTextView, provides an effect just like the HTML marquee tag.Moreover, the scrolling can be restarted, paused and resumed.Here are the source codes.The key points are:setHorizontallyScrolling() and use android.widget.Scroller to make the text scroll;Use the

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