Caused by: java.lang.NoSuchMethodException: <init> [class android.content.Context, interface android.util.AttributeSet] 异常

1. 异常描述

FATAL EXCEPTION: main
Process: com.whereru.greengrass.goforit, PID: 13847
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.whereru.greengrass.goforit/com.whereru.greengrass.goforit.activity.MainActivity}: android.view.InflateException: Binary XML file line #6: Error inflating class com.whereru.greengrass.goforit.ui.BaseViewPager
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2457)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2519)
at android.app.ActivityThread.access$1200(ActivityThread.java:165)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1380)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5669)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class com.whereru.greengrass.goforit.ui.BaseViewPager
at android.view.LayoutInflater.createView(LayoutInflater.java:635)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:762)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:825)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:935)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:523)
at android.view.LayoutInflater.inflate(LayoutInflater.java:425)
at android.view.LayoutInflater.inflate(LayoutInflater.java:368)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:380)
at android.app.Activity.setContentView(Activity.java:2188)
at com.whereru.greengrass.goforit.activity.MainActivity.onCreate(MainActivity.java:24)
at android.app.Activity.performCreate(Activity.java:6102)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2410)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2519)
at android.app.ActivityThread.access$1200(ActivityThread.java:165)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1380)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5669)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: java.lang.NoSuchMethodException: <init> [class android.content.Context, interface android.util.AttributeSet]
at java.lang.Class.getConstructor(Class.java:531)
at java.lang.Class.getConstructor(Class.java:495)
at android.view.LayoutInflater.createView(LayoutInflater.java:599)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:762)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:825)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:935)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:523)
at android.view.LayoutInflater.inflate(LayoutInflater.java:425)
at android.view.LayoutInflater.inflate(LayoutInflater.java:368)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:380)
at android.app.Activity.setContentView(Activity.java:2188)
at com.whereru.greengrass.goforit.activity.MainActivity.onCreate(MainActivity.java:24)
at android.app.Activity.performCreate(Activity.java:6102)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2410)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2519)
at android.app.ActivityThread.access$1200(ActivityThread.java:165)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1380)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5669)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 

2. 自定义View时，要同时覆写

 public XXXX(Context context) {
        super(context);
    }

    /**
     * 自定义View时,如果自定义View有属性,这个方法一定要覆写!!
     *
     * @param context
     * @param attrs
     */
    public XXXX(Context context, AttributeSet attrs) {
        super(context, attrs);
    }