开发学院手机开发 Android 开发 Android中proguard的作用阅读

Android中proguard的作用

　2012-08-08 12:12:05　来源：WEB开发网　　　

核心提示：08-08 10:51:50.622 E/AndroidRuntime( 3169): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.android.settings.AppPrefe

08-08 10:51:50.622 E/AndroidRuntime( 3169): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.android.settings.AppPreferInstallLocation: make sure class name exists, is public, and has an empty constructor that is public
08-08 10:51:50.622 E/AndroidRuntime( 3169): at android.app.Fragment.instantiate(Fragment.java:581)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at android.preference.PreferenceActivity.switchToHeaderInner(PreferenceActivity.java:1117)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at android.preference.PreferenceActivity.switchToHeader(PreferenceActivity.java:1133)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at android.preference.PreferenceActivity.onCreate(PreferenceActivity.java:532)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at com.android.settings.Settings.onCreate(Settings.java:97)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at android.app.Activity.performCreate(Activity.java:4465)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
08-08 10:51:50.622 E/AndroidRuntime( 3169): ... 11 more
08-08 10:51:50.622 E/AndroidRuntime( 3169): Caused by: java.lang.ClassNotFoundException: com.android.settings.AppPreferInstallLocation
08-08 10:51:50.622 E/AndroidRuntime( 3169): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
08-08 10:51:50.622 E/AndroidRuntime( 3169): at android.app.Fragment.instantiate(Fragment.java:571)
08-08 10:51:50.622 E/AndroidRuntime( 3169): ... 18 more