android SubMenu的使用



public class MainActivity extends Activity {

//定义字体大小菜单项的标识

final int FONT_10 = 0x111;

final int FONT_12 = 0x112;

final int FONT_14 = 0x113;

final int FONT_16 = 0x114;

final int FONT_18 = 0x115;

//定义普通菜单项的标识

final int PLAIN_ITEM = 0x11b;

//定义字体颜色菜单项标识

final int FONT_RED = 0x116;

final int FONT_BLUE = 0x117;

final int FONT_GREEN = 0x118;

private EditText edit;

@Override

public boolean onCreateOptionsMenu(Menu menu) {

SubMenu fontMenu = menu.addSubMenu("字体大小");

fontMenu.setIcon(R.drawable.ic_launcher);

fontMenu.setHeaderIcon(R.drawable.fy_d_kf);

fontMenu.setHeaderTitle("选择字体大小");

fontMenu.addSubMenu(0, FONT_10, 0, "10号字体");

fontMenu.addSubMenu(0, FONT_12, 0, "12号字体");

fontMenu.addSubMenu(0, FONT_14, 0, "14号字体");

fontMenu.addSubMenu(0, FONT_16, 0, "16号字体");

fontMenu.addSubMenu(0, FONT_18, 0, "18号字体");

menu.addSubMenu(0, PLAIN_ITEM, 0, "普通菜单项");

SubMenu colorMenu = menu.addSubMenu("字体颜色");

colorMenu.setIcon(R.drawable.fy_d_kf_s);

colorMenu.setHeaderIcon(R.drawable.fy_d_more_s);

colorMenu.setHeaderTitle("选择文字颜色");

colorMenu.addSubMenu(0, FONT_RED, 0, "红色");

colorMenu.addSubMenu(0, FONT_GREEN, 0, "绿色");

colorMenu.addSubMenu(0, FONT_BLUE, 0, "蓝色");

return super.onCreateOptionsMenu(menu);

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {

case FONT_10:

edit.setTextSize(10*2);

break;

case FONT_12:

edit.setTextSize(12*2);

break;

case FONT_14:

edit.setTextSize(14*2);

break;

case FONT_16:

edit.setTextSize(16*2);

break;

case FONT_18:

edit.setTextSize(18*2);

break;

case FONT_GREEN:

edit.setTextColor(Color.GREEN);

break;

case FONT_BLUE:

edit.setTextColor(Color.BLUE);

break;

case FONT_RED:

edit.setTextColor(Color.RED);

break;

case PLAIN_ITEM:

Toast.makeText(this, "nin点击的普通菜单", Toast.LENGTH_LONG).show();

break;

}

return true;

}

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

edit = (EditText) findViewById(R.id.editText1);

}

}