setBackgroundColor

１．setBackgroundColor(0xFFFF0000);

２．setBackgroundColor(Color.BLACK);

public class Color {
public static final int BLACK       = 0xFF000000;
public static final int DKGRAY      = 0xFF444444;
public static final int GRAY        = 0xFF888888;
public static final int LTGRAY      = 0xFFCCCCCC;
public static final int WHITE       = 0xFFFFFFFF;
public static final int RED         = 0xFFFF0000;
public static final int GREEN       = 0xFF00FF00;
public static final int BLUE        = 0xFF0000FF;
public static final int YELLOW      = 0xFFFFFF00;
public static final int CYAN        = 0xFF00FFFF;
public static final int MAGENTA     = 0xFFFF00FF;
public static final int TRANSPARENT = 0;

３．setBackgroundColor(Color.rgb(0, 200, 0));

4.textview.setTextColor(Color.rgb(0, 200, 0));

5.textview.setTextColor(Color.parseColor("#234234"));

6.textview.setTextColor(getResources().getColor(R.color.white));

7.textview.setTextColor(Color.BLACK);