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How to get IP address of the device from code?
...block in getMACAddress() which could read the value from the special Linux(Android) file. I've run this code only on few devices and Emulator but let me know here if you find weird results.
// AndroidManifest.xml permissions
<uses-permission android:name="android.permission.INTERNET" />
<u...
IN clause and placeholders
I'm attempting to do the following SQL query within Android:
9 Answers
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How can I convert an image into a Base64 string?
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You can use the Base64 Android class:
String encodedImage = Base64.encodeToString(byteArrayImage, Base64.DEFAULT);
You'll have to convert your image into a byte array though. Here's an example:
Bitmap bm = BitmapFactory.decodeFile("/path/to/ima...
CharSequence VS String in Java?
Programming in Android, most of the text values are expected in CharSequence .
9 Answers
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When to use a Content Provider
...does not worth the effort in most cases. I have done at least 12 different Android apps (published to the Play Store) and have never need a ContentProvider. In fact, the last app we were working on was initially made with a ContentProvider and we just deleted that since it is actually more a pain in...
Purpose of buildscript block in Gradle
...le is able to perform the build). So this section will usually include the Android Gradle plugin.
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Android Spanned, SpannedString, Spannable, SpannableString and CharSequence
Android offers a variety of interfaces all related to text and strings:
Spanned , SpannedString , Spannable , SpannableString and CharSequence .
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Difference between onCreateView and onViewCreated in Fragment
...onViewCreated is a make sure that view is fully created.
onViewCreated android Documentation
Called immediately after onCreateView(android.view.LayoutInflater, android.view.ViewGroup, android.os.Bundle) has returned, but before any saved state has been restored in to the view. This gives subcl...
Sending data back to the Main Activity in Android
...orResult() method call
There is an example of this here:
http://developer.android.com/training/notepad/notepad-ex2.html
and in the "Returning a Result from a Screen" of this:
http://developer.android.com/guide/faq/commontasks.html#opennewscreen
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...代码质量密切相关的几点：
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熟悉开发平台, 不同的开发平台，有不同的API, 有不同的工作原理，...