OpenGL ES glCheckFramebufferStatus return 0

OpenGL ES glCheckFramebufferStatus return 0

I am writing Android OepnGL program in native code.
The following code is called through jni, normal call, not inside any
surface view.
When the glCheckFramebufferStatus() is called, the status is always 0.
GLuint textureA;
glEnable(GL_TEXTURE_2D);
glGenTextures(1, &textureA);
glBindTexture(GL_TEXTURE_2D, textureA);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0, GL_RGBA,
GL_UNSIGNED_BYTE, NULL);
GLuint fboA;
glGenFramebuffers(1, &fboA);
glBindFramebuffer(GL_FRAMEBUFFER, fboA);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
textureA, 0);
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status == GL_FRAMEBUFFER_COMPLETE) {
LOGH("Single FBO setup successfully.");
} else {
LOGH("Problem in setup FBO texture: %d .", status);
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);