Android SDK does not provide file selection dialog box, but the file selection dialog is sometimes very useful this code to create a file selection dialog, you can set the file filter type, and icon, very practical

OpenFileDialog\bin\AndroidManifest.xml
..............\...\classes.dex
..............\...\OpenFileDemo.apk
..............\...\classes\com\example\openfiledemo\OpenFileDialog$FileSelectView.class
..............\...\.......\...\.......\............\OpenFileDialog.class
..............\...\.......\...\.......\............\OpenFileDemo.class
..............\...\.......\...\.......\............\OpenFileDemo$2.class
..............\...\.......\...\.......\............\OpenFileDemo$1.class
..............\...\.......\...\.......\............\CallbackBundle.class
..............\...\.......\...\.......\............\R$string.class
..............\...\.......\...\.......\............\R$id.class
..............\...\.......\...\.......\............\R.class
..............\...\.......\...\.......\............\R$menu.class
..............\...\.......\...\.......\............\R$style.class
..............\...\.......\...\.......\............\R$layout.class
..............\...\.......\...\.......\............\R$attr.class
..............\...\.......\...\.......\............\R$dimen.class
..............\...\.......\...\.......\............\R$drawable.class
..............\...\.......\...\.......\............\BuildConfig.class
..............\...\res\drawable-hdpi\filedialog_file.png
..............\...\...\.............\filedialog_folder.png
..............\...\...\.............\filedialog_folder_up.png
..............\...\...\.............\filedialog_root.png
..............\...\...\.............\filedialog_wavfile.png
..............\...\...\.............\ic_action_search.png
..............\...\...\.............\ic_launcher.png
..............\...\...\.........ldpi\ic_launcher.png
..............\...\...\.........mdpi\ic_action_search.png
..............\...\...\.............\ic_launcher.png
..............\...\...\.........xhdpi\ic_action_search.png
..............\...\...\..............\ic_launcher.png
..............\...\jarlist.cache
..............\...\resources.ap_
..............\...\dexedLibs\annotations-bafda81664bd1292d0444f41867c1153.jar
..............\...\.........\android-support-v4-947018c9898421587165e0d7fcd142fb.jar
..............\...\OpenFileDialog.apk
..............\gen\com\example\openfiledemo\BuildConfig.java
..............\...\...\.......\............\R.java
..............\libs\android-support-v4.jar
..............\res\drawable-hdpi\filedialog_file.png
..............\...\.............\filedialog_folder.png
..............\...\.............\filedialog_folder_up.png
..............\...\.............\filedialog_root.png
..............\...\.............\filedialog_wavfile.png
..............\...\.............\ic_action_search.png
..............\...\.............\ic_launcher.png
..............\...\.........ldpi\ic_launcher.png
..............\...\.........mdpi\ic_action_search.png
..............\...\.............\ic_launcher.png
..............\...\.........xhdpi\ic_action_search.png
..............\...\..............\ic_launcher.png
..............\...\layout\activity_open_file_demo.xml
..............\...\......\filedialogitem.xml
..............\...\menu\activity_open_file_demo.xml
..............\...\values\dimens.xml
..............\...\......\strings.xml
..............\...\......\styles.xml
..............\...\......-large\dimens.xml
..............\src\com\example\openfiledemo\CallbackBundle.java
..............\...\...\.......\............\OpenFileDemo.java
..............\...\...\.......\............\OpenFileDialog.java
..............\.classpath
..............\.project
..............\AndroidManifest.xml
..............\ic_launcher-web.png
..............\proguard-project.txt
..............\project.properties
..............\bin\classes\com\example\openfiledemo
..............\...\.......\...\example
..............\gen\com\example\openfiledemo
..............\src\com\example\openfiledemo
..............\bin\classes\com
..............\...\res\drawable-hdpi
..............\...\...\drawable-ldpi
..............\...\...\drawable-mdpi
..............\...\...\drawable-xhdpi
..............\gen\com\example
..............\src\com\example
..............\bin\classes
...

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