调试很久的java.lang.NullPointerException: Attempt to invoke virtual method ...

其他 2018-07-12 18:11:25 阅读次数: 0

java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference 报错；

一直查不出报错的原因：最后发现适配器要加载的View中有个小控件写错了如下：

只需要把view改成View就OK了！

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转载自blog.csdn.net/qq_42618969/article/details/80930296

调试很久的java.lang.NullPointerException: Attempt to invoke virtual method ...

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.C

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.

java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()'

java.lang.NullPointerException: Attempt to invoke virtual method ‘boolean java.lang.String.equals(j

Android:NullPointerException: Attempt to invoke virtual method

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setTe

java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getImportant

java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.Intent.getI...

报错：java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget错误解

java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.Vie

android studio 运行活动闪退Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'vo

java.lang.NullPointerException: Attempt to invoke virtual method ‘void android.widget.RadioGroup.set

java.lang.NullPointerException: Attempt to invoke virtual method ‘void android.view.View.setDrawingC

java.lang.NullPointerException: Attempt to invoke virtual method ‘void android.view.View.setScaleX(f

java.lang.NullPointerException: Attempt to invoke virtual method ‘void android.view.View...的解决方法

遇到java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View...的解决方法

NullPointerException Attempt to invoke virtual method 'int android.widget....

caused by NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(ja

Android秒退并出现“java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.appcompat.app.ActionBar.setTitle(java.lang.CharSequence)”时解决办法

ava.lang.NullPointerException: Attempt to invoke virtual method 'android.database.sqlite.SQLiteDatab

报错Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)'

Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null obje

Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object

Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null

Attempt to invoke virtual method 'boolean java.util.ArrayList.add(java.lang.

Binary XML file Attempt to invoke virtual method 'boolean java.lang.String.equal

Binary XML file line #0: Attempt to invoke virtual method 'boolean java.lang.String.equals

Attempt to invoke virtual method 'void java.lang.reflect.Field.setAccessible(boolean)' on a null obj

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