tab 转换图片步骤

1 //得到资源文件
2         a0=getResources().getDrawable(R.drawable.icon_tab_hp_normal);
3         b0=getResources().getDrawable(R.drawable.icon_tab_hp_pressed);
4         a1=getResources().getDrawable(R.drawable.icon_tab_video_normal);
5         b1=getResources().getDrawable(R.drawable.icon_tab_video_pressed);
6         a2=getResources().getDrawable(R.drawable.icon_tab_discovery_normal);
7         b2=getResources().getDrawable(R.drawable.icon_tab_discovery_pressed);
8         a3=getResources().getDrawable(R.drawable.icon_tab_my_normal);
9         b3=getResources().getDrawable(R.drawable.icon_tab_my_pressed);

//设置图片尺寸
1 a0.setBounds(0,0 , a0.getMinimumWidth(), a0.getMinimumHeight());
2         b0.setBounds(0,0 , b0.getMinimumWidth(), b0.getMinimumHeight());
3         a1.setBounds(0,0 , a1.getMinimumWidth(), a1.getMinimumHeight());
4         b1.setBounds(0,0 , b1.getMinimumWidth(), b1.getMinimumHeight());
5         a2.setBounds(0,0 , a2.getMinimumWidth(), a2.getMinimumHeight());
6         b2.setBounds(0,0 , b2.getMinimumWidth(), b2.getMinimumHeight());
7         a3.setBounds(0,0 , a3.getMinimumWidth(), a3.getMinimumHeight());
8         b3.setBounds(0,0 , b3.getMinimumWidth(), b3.getMinimumHeight());

//设置更改的图片
1 R1.setCompoundDrawables(null, a0, null, null);
2                 R2.setCompoundDrawables(null, a1, null, null);
3                 R3.setCompoundDrawables(null, a2, null, null);
4                 R4.setCompoundDrawables(null, a3, null, null);

//设置更改的颜色、
1 R1.setTextColor(getResources().getColor(R.color.bottom));
2                 R2.setTextColor(getResources().getColor(R.color.bottom));
3                 R3.setTextColor(getResources().getColor(R.color.bottom));
4                 R4.setTextColor(getResources().getColor(R.color.bottom));