Caused by: java.lang.NoSuchMethodException: <init> [class android.content.Context, interface androi_android java.lang.nosuchmethodexception: <init-优快云博客

本文详细解析了在Android应用中自定义View时遇到的NoSuchMethodException错误原因及解决方案，强调了覆写构造函数的重要性。

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

     Caused by: android.view.InflateException: Binary XML file line #37: Binary XML file line #37: Error inflating class com.vision.myapplicationtest.MyRegionView
     Caused by: android.view.InflateException: Binary XML file line #37: Error inflating class com.vision.myapplicationtest.MyRegionView
     Caused by: java.lang.NoSuchMethodException: <init> [class android.content.Context, interface android.util.AttributeSet]
        at java.lang.Class.getConstructor0(Class.java:2320)
        at java.lang.Class.getConstructor(Class.java:1725)
        at android.view.LayoutInflater.createView(LayoutInflater.java:619)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:794)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:734)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:867)
        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:828)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:519)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:427)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
        at android.support.v7.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
        at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
        at com.vision.myapplicationtest.MainActivity.onCreate(MainActivity.java:22)
        at android.app.Activity.performCreate(Activity.java:7098)
        at android.app.Activity.performCreate(Activity.java:7089)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1215)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2895)
        at android.app.ActivityThread.-wrap11(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1616)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:173)
        at android.app.ActivityThread.main(ActivityThread.java:6653)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:821)

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

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