1.解决NavigationView的图片灰色
NavigationView navigationView = (NavigationView) findViewById (R.id.nv);
//防止图片灰色 使图片显示原本的颜色
navigationView.setItemIconTintList (null);
2.获取头布局
//头布局
View headerView = navigationView.getHeaderView (0);
3.头布局中文件的点击事件
ImageView imageView = (ImageView) headerView.findViewById (R.id.iv);
imageView.setOnClickListener (new View.OnClickListener () {
@Override
public void onClick(View view) {
Toast.makeText (MainActivity.this, "我是头布局的图片", Toast.LENGTH_LONG).show ();
}
});
4.界面初始化的时候根据需求隐藏指定item
//界面初始化的时候根据需求隐藏指定item
for (int i = 0; i < navigationView.getMenu ().size (); i++) {
int id = navigationView.getMenu ().getItem (i).getItemId ();
switch (id) {
case R.id.favorite:
Log.e (TAG, "initView: " + "favorite");
navigationView.getMenu ().getItem (i).setVisible (false);
break;
}
}
5.界面初始化的时候根据需求移除指定的Group
navigationView.getMenu ().removeGroup (R.id.g2);
6.设置某个Group是否可点击 false:不可点击(如果设置为false，这个Group所有的item将不可点击) true:可点击
navigationView.getMenu ().setGroupEnabled (R.id.g1, true);
7 item点击事件
7.1 item选中状态设置
7.2 设置item的文本内容
7.3 关闭导航栏的两种方法
7.4 隐藏item
//item布局
navigationView.setNavigationItemSelectedListener (new NavigationView.OnNavigationItemSelectedListener () {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
//1.item被选中 和return true配合可以把item变成被选中状态
item.setCheckable (true);
switch (item.getItemId ()) {
case R.id.favorite:
break;
case R.id.wallet:
// 2.点击重新设置item的文本内容
item.setTitle ("我是item-wallet-2");
// 3.关闭导航菜单-----1. mDrawer.closeDrawers () 2. mDrawer.closeDrawers (GravityCompat.STAR)
//mDrawer.closeDrawers ();
mDrawer.closeDrawer (GravityCompat.START);
break;
case R.id.photo:
break;
case R.id.file:
Toast.makeText (MainActivity.this, "我是item-file", Toast.LENGTH_LONG).show ();
// 4.隐藏item
item.setVisible (false);
break;
}
// 配合1. (item.setCheckable (true))使用
return true;
}
});
全部核心代码：
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
private DrawerLayout mDrawer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate (savedInstanceState);
setContentView (R.layout.main);
initView ();
}
private void initView() {
mDrawer = (DrawerLayout) findViewById (R.id.drawer);
NavigationView navigationView = (NavigationView) findViewById (R.id.nv);
//防止图片灰色
navigationView.setItemIconTintList (null);
//头布局
View headerView = navigationView.getHeaderView (0);
ImageView imageView = (ImageView) headerView.findViewById (R.id.iv);
imageView.setOnClickListener (new View.OnClickListener () {
@Override
public void onClick(View view) {
Toast.makeText (MainActivity.this, "我是头布局的图片", Toast.LENGTH_LONG).show ();
}
});
//界面初始化的时候根据需求隐藏指定item
for (int i = 0; i < navigationView.getMenu ().size (); i++) {
int id = navigationView.getMenu ().getItem (i).getItemId ();
switch (id) {
case R.id.favorite:
Log.e (TAG, "initView: " + "favorite");
navigationView.getMenu ().getItem (i).setVisible (false);
break;
}
}
//界面初始化的时候根据需求移除指定的Group
navigationView.getMenu ().removeGroup (R.id.g2);
//设置某个Group是否可点击 false:不可点击(如果设置为false，这个Group所有的item将不可点击) true:可点击
navigationView.getMenu ().setGroupEnabled (R.id.g1, true);
//item布局
navigationView.setNavigationItemSelectedListener (new NavigationView.OnNavigationItemSelectedListener () {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
//item被选中 和return true配合可以把item变成被选中状态
item.setCheckable (true);
switch (item.getItemId ()) {
case R.id.favorite:
break;
case R.id.wallet:
//点击重新设置item的文本内容
item.setTitle ("我是item-wallet-2");
//关闭导航菜单-----1. mDrawer.closeDrawers () 2. mDrawer.closeDrawers (GravityCompat.STAR)
//mDrawer.closeDrawers ();
mDrawer.closeDrawer (GravityCompat.START);
break;
case R.id.photo:
break;
case R.id.file:
Toast.makeText (MainActivity.this, "我是item-file", Toast.LENGTH_LONG).show ();
item.setVisible (false);
break;
}
//
return true;
}
});
}
}
demo地址
https://github.com/momosnail/NavigationViewDemo
