android定位导航图标png,在动作栏上更改导航栏图标android

我已经在我的应用程序中使用ActionBar创建了一个NavigationDrawer。

如上图所示，我想将NavigationDrawer切换按钮图标更改为我想要的。我该怎么改呢？

这是我的代码：

mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

// enabling action bar app icon and behaving it as toggle button

getActionBar().setDisplayHomeAsUpEnabled(true);

getActionBar().setHomeButtonEnabled(true);

mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,

R.drawable.hamburger_button, //nav menu toggle icon

R.string.app_name, // nav drawer open - description for accessibility

R.string.app_name // nav drawer close - description for accessibility

) {

public void onDrawerClosed(View view)

{

getActionBar().setTitle(mTitle);

// calling onPrepareOptionsMenu() to show action bar icons

invalidateOptionsMenu();

}

public void onDrawerOpened(View drawerView) {

getActionBar().setTitle("Settings");

// calling onPrepareOptionsMenu() to hide action bar icons

invalidateOptionsMenu();

}

};

mDrawerLayout.setDrawerListener(mDrawerToggle);

@Override

protected void onPostCreate(Bundle savedInstanceState) {

super.onPostCreate(savedInstanceState);

// Sync the toggle state after onRestoreInstanceState has occurred.

mDrawerToggle.syncState();

}

@Override

public void onConfigurationChanged(Configuration newConfig) {

super.onConfigurationChanged(newConfig);

// Pass any configuration change to the drawer toggls

mDrawerToggle.onConfigurationChanged(newConfig);

}

如果我尝试将其更改为R.drawable.hamburger_button它仍然显示默认图标