Question

当我在buildType下的build.gradle文件中添加minifyEnable:true时，应用程序崩溃了：

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'int android.support.v4.view.ViewPager.getCurrentItem()' on a null object reference
   at com.myapp.springindicator.SpringIndicator.createPoints(Unknown Source)
   at com.myapp.springindicator.SpringIndicator.onLayout(Unknown Source)
   at android.view.View.layout(View.java:16636)
   at android.view.ViewGroup.layout(ViewGroup.java:5437)
   at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1735)
   at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1579)
   at android.widget.LinearLayout.onLayout(LinearLayout.java:1488)
   at android.view.View.layout(View.java:16636)
   at android.view.ViewGroup.layout(ViewGroup.java:5437)
   at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1735)
   at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1579)
   at android.widget.LinearLayout.onLayout(LinearLayout.java:1488)
   ...

有人可以帮帮我吗？我已经在proguard文件中添加了这个：

-keep class android.support.v4.app.** { *; } -keep interface android.support.v4.app.** { *; } -keep class android.support.v7.app.** { *; } -keep interface android.support.v7.app.** { *; }

我也尝试过使用应用类

Answer 1

-keep class android.support.** { *; }对我有用。

尝试一下，因为您只是将课程保留在android.support.v4.app.下，并在android.support.v4.view.

崩溃

minifyEnabled：在发布应用程序崩溃支持v4中为true

1 个答案: