当我在 2.3.x 设备上运行我的应用程序时，在使用 proguard 缩小我的应用程序后出现此错误
10-17 11:36:10.045: WARN/System.err(17989): Caused by: java.lang.NullPointerException: Can't inject null value into class de.mobile.ui.BaseActivity.drawerLayout when field is not @Nullable
10-17 11:36:10.045: WARN/System.err(17989): at roboguice.inject.ViewListener$ViewMembersInjector.reallyInjectMemberViews(ViewListener.java:179)
10-17 11:36:10.045: WARN/System.err(17989): at roboguice.inject.ViewListener$ViewMembersInjector.reallyInjectMembers(ViewListener.java:138)
10-17 11:36:10.045: WARN/System.err(17989): at roboguice.inject.ViewListener$ViewMembersInjector.injectViews(ViewListener.java:246)
10-17 11:36:10.045: WARN/System.err(17989): at roboguice.inject.ContextScopedRoboInjector.injectViewMembers(ContextScopedRoboInjector.java:258)
10-17 11:36:10.045: WARN/System.err(17989): at de.mobile.ui.BaseActivity.onContentChanged(BaseActivity.java:484)
10-17 11:36:10.045: WARN/System.err(17989): at com.actionbarsherlock.internal.ActionBarSherlockCompat.setContentView(ActionBarSherlockCompat.java:876)
10-17 11:36:10.045: WARN/System.err(17989): at com.actionbarsherlock.app.SherlockFragmentActivity.setContentView(SherlockFragmentActivity.java:267)
10-17 11:36:10.045: WARN/System.err(17989): at de.mobile.ui.webview.WebViewActivity.createUI(WebViewActivity.java:135)
10-17 11:36:10.045: WARN/System.err(17989): at de.mobile.ui.BaseActivity.onCreate(BaseActivity.java:157)
10-17 11:36:10.045: WARN/System.err(17989): at de.mobile.ui.webview.WebViewActivity.onCreate(WebViewActivity.java:76)
这是我的 WebViewActivity 代码
@Override
protected void createUI(final Bundle savedInstanceState) {
LOG.debug("createUI");
// hack to enable keyboard in webviews which is not usable on Android 2.3.x together with new MenuSlider
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.GINGERBREAD_MR1) {
final LinearLayout layout = new LinearLayout(this);
final int CONTENT_VIEW_ID = 10101010; // any id
layout.setId(CONTENT_VIEW_ID);
layout.setBackgroundColor(Color.WHITE);
setContentView(layout,
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.add(CONTENT_VIEW_ID, getWebViewFragment());
fragmentTransaction.commit();
return;
}
setContentView(R.layout.web_activity);
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.add(R.id.web_layout, getWebViewFragment());
fragmentTransaction.commit();
}
在这里我在 BaseActivity 中得到 null
@Override
public void onContentChanged() {
super.onContentChanged();
RoboGuice.getInjector(this).injectViewMembers(this);
}
这是我的proguard文件
-target 1.6
-ignorewarnings
-dontoptimize
-dontobfuscate
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable,*Annotation*
-printmapping map.txt
-printseeds seed.txt
-printusage unused.txt
# The -optimizations option disables some arithmetic simplifications that Dalvik 1.0 and 1.5 can't handle.
-optimizations !code/simplification/arithmetic
-keepclassmembers enum * { public static **[] values(); public static ** valueOf(java.lang.String); }
-keep class de.mobile.**
-keepclassmembers class de.mobile.** { public <init>(...); }
-keepclassmembers class de.mobile.** {
*** set*(***);
*** get*();
}
-keep class de.mobile.** {*;}
-keepclassmembers class de.mobile.** {*;}
-keep class de.mobile.test.R*
-keep class de.mobile.**.*Test { public void test* (); }
-keep class de.shop.api.** {*;}
-keepclassmembers class de.shop.api.** {*;}
-keepclassmembers class de.shop.api.client.** { public <init>(...); }
-keep class com.madgag.android.blockingprompt.**
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.view.View { public <init>(android.content.Context); public <init>(android.content.Context, android.util.AttributeSet); public <init>(android.content.Context, android.util.AttributeSet, int); public void set*(...); }
-keepclassmembers class * extends android.app.Activity { public void *(android.view.View); }
-keepclassmembers class android.support.v4.app.Fragment { *** getActivity(); public *** onCreate(); public *** onCreateOptionsMenu(...); }
-keep public class * extends junit.framework.TestCase
-keep class junit.framework.**
-keepclassmembers class * { @com.google.inject.Provides *; @android.test.suitebuilder.annotation.* *; void test*(...); }
# There's no way to keep all @Observes methods, so use the On*Event convention to identify event handlers
-keepclassmembers class * {
void *(**On*Event);
}
-keep public class roboguice.** {*;}
-keepclassmembers class roboguice.** {*;}
-keep class com.google.** {*;}
-keep class com.google.inject.Binder
-keep class com.google.inject.Key
-keep class com.google.inject.Provider
-keep class com.google.inject.TypeLiteral
-keepclassmembers class * { @com.google.inject.Inject <init>(...); }
-keepclassmembers class com.google.inject.assistedinject.FactoryProvider2 { *; }
-keepclassmembers class com.google.** {
private void finalizeReferent();
protected void finalizeReferent();
public void finalizeReferent();
void finalizeReferent();
private *** startFinalizer(java.lang.Class,java.lang.Object);
protected *** startFinalizer(java.lang.Class,java.lang.Object);
public *** startFinalizer(java.lang.Class,java.lang.Object);
*** startFinalizer(java.lang.Class,java.lang.Object);
}
-keepclassmembers class * extends com.actionbarsherlock.ActionBarSherlock { public <init>(...); }
-keepnames class * implements java.io.Serializable
-keepclassmembers class * implements java.io.Serializable {
static final long serialVersionUID;
private static final java.io.ObjectStreamField[] serialPersistentFields;
!static !transient <fields>;
!private <fields>;
!private <methods>;
private void writeObject(java.io.ObjectOutputStream);
private void readObject(java.io.ObjectInputStream);
java.lang.Object writeReplace();
java.lang.Object readResolve();
}
-keep class org.taptwo.android.widget.**
-keepclassmembers class org.taptwo.android.widget.** { public <init>(...); }
-keepclassmembers class org.taptwo.android.widget.** {
*** set*(***);
*** get*();
}
#ACRA specifics
# we need line numbers in our stack traces otherwise they are pretty useless
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable
# ACRA needs "annotations" so add this...
-keepattributes *Annotation*
# keep this class so that logging will show 'ACRA' and not a obfuscated name like 'a'.
# Note: if you are removing log messages elsewhere in this file then this isn't necessary
-keep class org.acra.ACRA {
*;
}
# keep this around for some enums that ACRA needs
-keep class org.acra.ReportingInteractionMode {
*;
}
-keepnames class org.acra.ReportField {
*;
}
# keep this otherwise it is removed by ProGuard
-keep public class org.acra.ErrorReporter
{
public void addCustomData(java.lang.String,java.lang.String);
public void putCustomData(java.lang.String,java.lang.String);
public void removeCustomData(java.lang.String);
}
# keep this otherwise it is removed by ProGuard
-keep public class org.acra.ErrorReporter
{
public void handleSilentException(java.lang.Throwable);
}
# Trademob Tracking
-keep class com.loopj.** { *; }
-keep class com.trademob.tracking.** { *; }
-assumenosideeffects class android.util.Log {
public static boolean isLoggable(java.lang.String, int);
public static int v(...);
public static int i(...);
public static int w(...);
public static int d(...);
public static int e(...);
}
-assumenosideeffects class * implements org.slf4j.Logger {
public void trace(...);
public void debug(...);
public void info(...);
public void warn(...);
public void error(...);
}