Android 自定义View java.lang.RuntimeException: Unable to start activity ComponentInfo

在Android 4.1.2环境下，自定义了一个View，运行时出现

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.matrixtest/com.example.matrixtest.MainActivity}: android.view.InflateException: Binary XML file line #26: Error inflating class MatrixImageView

搜寻半天，后来发现是我自定义View的问题

自定义的View需要重写所有的构造方法即：

<span style="white-space:pre">  </span>public MatrixImageView(Context context) {super(context);// TODO Auto-generated constructor stub}public MatrixImageView(Context context, AttributeSet attri) {super(context, attri);// TODO Auto-generated constructor stub}public MatrixImageView(Context context, AttributeSet attri, int defStyle) {super(context, attri, defStyle);// TODO Auto-generated constructor stub}

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Android 自定义View java.lang.RuntimeException: Unable to start activity ComponentInfo

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