对于没有复现onWindowFocusChange方法的Activity子类，插入一个onWindowFocusChange方法

private void insertWindowFocusChangeMethod(ClassVisitor cv) {
MethodVisitor methodVisitor = cv.visitMethod(Opcodes.ACC_PUBLIC, TraceBuildConstants.MATRIX_TRACE_ON_WINDOW_FOCUS_METHOD,
TraceBuildConstants.MATRIX_TRACE_ON_WINDOW_FOCUS_METHOD_ARGS, null, null);
methodVisitor.visitCode();
methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
methodVisitor.visitVarInsn(Opcodes.ILOAD, 1);
methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, TraceBuildConstants.MATRIX_TRACE_ACTIVITY_CLASS, TraceBuildConstants.MATRIX_TRACE_ON_WINDOW_FOCUS_METHOD,
TraceBuildConstants.MATRIX_TRACE_ON_WINDOW_FOCUS_METHOD_ARGS, false);
traceWindowFocusChangeMethod(methodVisitor);
methodVisitor.visitInsn(Opcodes.RETURN);
methodVisitor.visitMaxs(2, 2);
methodVisitor.visitEnd(http://www.amjmh.com/v/);

}