如何在导航抽屉中将项目添加为项目

Question

我想添加微调项目作为导航抽屉中的项目。我应该在哪里把纺纱机作为一个项目？在哪里膨胀微调的布局？在哪里初始化微调器？我希望它看起来像这样：

这是我加我的项目：

<menu xmlns:android="http://schemas.android.com/apk/res/android"> 

<group 
    android:id="@+id/group1" 
    android:checkableBehavior="single"> 
    <item 
     android:id="@+id/nav_login" 
     android:icon="@drawable/ic_login" 
     android:title="@string/login_menu_item"/> 
    <item 
     android:id="@+id/nav_signup" 
     android:icon="@drawable/ic_signup" 
     android:title="@string/signup_menu_item"/> 
    </group> 

<item android:title="@string/language"> 
    <menu> 
     <item 
      android:id="@+id/nav_eng" 
      android:title="@string/english"> 
     </item> 

     <item 
      android:id="@+id/nav_heb" 
      android:title="@string/hebrew"> 
     </item> 
    </menu> 

这是我的布局与抽屉：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
      xmlns:app="http://schemas.android.com/apk/res-auto" 
      xmlns:tools="http://schemas.android.com/tools" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:fitsSystemWindows="true" 
      android:orientation="vertical"> 

<android.support.v7.widget.Toolbar 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/toolbar_home" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:background="@color/colorPrimary" 
    android:minHeight="?attr/actionBarSize" 
    android:theme="@style/ThemeOverlay.AppCompat.ActionBar" 
    app:title="Masü" 
    /> 

<android.support.v4.widget.DrawerLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/drawer_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:openDrawer="start"> 

    <FrameLayout 
     android:id="@+id/fragment_container" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:orientation="vertical" 
     /> 

    <android.support.design.widget.NavigationView 
     android:id="@+id/nav_view" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_gravity="start" 
     app:itemIconTint="@color/colorAccent" 
     app:itemTextColor="@color/textColorSecondary" 
     app:menu="@menu/activity_home_drawer"/> 
</android.support.v4.widget.DrawerLayout> 
</LinearLayout> 

而且点击一个项目，这是它是如何工作的：

public boolean onNavigationItemSelected(MenuItem item) { 
    int id = item.getItemId(); 
    mDrawerLayout.closeDrawers(); 

    if (id == R.id.nav_login) { 
     if (mIsLoggedin) { 
      logout(); 
     } else { 
      mFragmentTransaction = mFragmentManager.beginTransaction(); 
      mFragmentTransaction.replace(R.id.fragment_container, new LoginFragment()).commit(); 
     } 

Answer 1

步骤1.请在menu.xml文件

<item 
      android:id="@+id/navigation_drawer_item3" 
      android:icon="@android:drawable/ic_menu_share" 
      android:title="" 
      app:actionLayout="@layout/spinner"/> 

第2步添加的项目。请将您的活动文件

Spinner spinner = (Spinner) navigationView.getMenu().findItem(R.id.navigation_drawer_item3).getActionView(); 
    spinner.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_spinner_dropdown_item,language)); 
    spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
     @Override 
     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 
      Toast.makeText(MainActivity.this,language[position],Toast.LENGTH_SHORT).show(); 
     } 
     @Override 
     public void onNothingSelected(AdapterView<?> parent) { 
     } 
    }); 

步骤4.为微调视图中创建布局

<?xml version="1.0" encoding="utf-8"?> 
<Spinner xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/spinner" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:layout_gravity="center_vertical" 
    android:gravity="center_vertical" /> 

第3步：设置微调数据请添加支持Android的设计库到项目，如果需要。

Answer 2

我将指导您如何在工具栏中创建自定义微调，以便您从这里获得创意。

步骤1添加支持库，并创建工具栏布局

toolbar.xml

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/toolbar" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:background="?attr/colorPrimaryDark" 
    android:minHeight="?attr/actionBarSize" 
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light" 
    > 

    <Spinner 
     android:id="@+id/spinner_nav" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" /> 

</android.support.v7.widget.Toolbar> 

步骤2包括工具栏在你的活动布局文件中像这样

spintoolbaractivity .xml

个

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:background="#c9c9c9" 
    android:orientation="vertical" > 

    <include 
     android:id="@+id/toolbar" 
     layout="@layout/spintoolbar" /> 


</LinearLayout> 

spinner_row.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_margin="5dp" 
    android:background="@drawable/spinner_selector" 
    android:orientation="vertical" > 

    <TextView 
     android:id="@+id/tvCategory" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_margin="10dp" 
     android:textSize="18sp" 
     /> 

</RelativeLayout> 

值/ styles.xml

<resources xmlns:android="http://schemas.android.com/apk/res/android"> 

<style name="AppTheme" parent="AppTheme.Base" /> 

<style name="AppTheme.Base" parent="Theme.AppCompat.NoActionBar"> 
    <!-- your app branding color for the app bar --> 
    <item name="colorPrimary">@color/md_teal_500_primary</item> 

    <!-- darker variant for the status bar and contextual app bars --> 
    <item name="colorPrimaryDark">@color/md_teal_700</item> 

    <!-- theme UI controls like checkboxes and text fields --> 
    <item name="colorAccent">@color/md_teal_900</item> 


</style> 

步骤3创建微调这个定制适配器。

CustomSpinnerAdapter.java

import java.util.ArrayList; 
    import android.content.Context; 
    import android.content.res.Resources; 
    import android.view.LayoutInflater; 
    import android.view.View; 
    import android.view.ViewGroup; 
    import android.widget.ArrayAdapter; 
    import android.widget.TextView; 

    // Custom Adapter for Spinner 
    public class CustomSpinnerAdapter extends ArrayAdapter<String> { 

    private Context context1; 
    private ArrayList<String> data; 
    public Resources res; 
    LayoutInflater inflater; 

    public CustomSpinnerAdapter(Context context, ArrayList<String> objects) { 
     super(context, R.layout.spinner_row, objects); 

     context1 = context; 
     data = objects; 

     inflater = (LayoutInflater) context1 
     .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

    } 

    @Override 
    public View getDropDownView(int position, View convertView, ViewGroup parent) { 
     return getCustomView(position, convertView, parent); 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     return getCustomView(position, convertView, parent); 
    } 

    // This funtion called for each row (Called data.size() times) 
    public View getCustomView(int position, View convertView, ViewGroup parent) { 

     View row = inflater.inflate(R.layout.spinner_row, parent, false); 

     TextView tvCategory = (TextView) row.findViewById(R.id.tvCategory); 

     tvCategory.setText(data.get(position).toString()); 

     return row; 
    } 
    } 

SpinToolbarActivity.java

import java.util.ArrayList; 
import android.os.Bundle; 
import android.support.v7.app.ActionBarActivity; 
import android.support.v7.widget.Toolbar; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.AdapterView.OnItemSelectedListener; 
import android.widget.Spinner; 
import android.widget.Toast; 

public class SpinToolbarActivity extends AppCompatActivity { 

private Toolbar toolbar; 

private Spinner spinner_nav; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.spintoolbaractivity); 
    toolbar = (Toolbar) findViewById(R.id.toolbar); 
    spinner_nav = (Spinner) findViewById(R.id.spinner_nav); 

    if (toolbar != null) { 
    setSupportActionBar(toolbar); 
    getSupportActionBar().setDisplayShowTitleEnabled(false); 

    } 
    addItemsToSpinner(); 

} 

// add items into spinner dynamically 
public void addItemsToSpinner() { 

    ArrayList<String> list = new ArrayList<String>(); 
    list.add("Top News"); 
    list.add("Politics"); 
    list.add("Business"); 
    list.add("Sports"); 
    list.add("Movies"); 

    // Custom ArrayAdapter with spinner item layout to set popup background 

    CustomSpinnerAdapter spinAdapter = new CustomSpinnerAdapter(
    getApplicationContext(), list); 



    // Default ArrayAdapter with default spinner item layout, getting some 
    // view rendering problem in lollypop device, need to test in other 
    // devices 

    /* 
    * ArrayAdapter<String> spinAdapter = new ArrayAdapter<String>(this, 
    * android.R.layout.simple_spinner_item, list); 
    * spinAdapter.setDropDownViewResource 
    * (android.R.layout.simple_spinner_dropdown_item); 
    */ 

    spinner_nav.setAdapter(spinAdapter); 

    spinner_nav.setOnItemSelectedListener(new OnItemSelectedListener() { 

    @Override 
    public void onItemSelected(AdapterView<?> adapter, View v, 
    int position, long id) { 
    // On selecting a spinner item 
    String item = adapter.getItemAtPosition(position).toString(); 

    // Showing selected spinner item 
    Toast.makeText(getApplicationContext(), "Selected : " + item, 
     Toast.LENGTH_LONG).show(); 
    } 

    @Override 
    public void onNothingSelected(AdapterView<?> arg0) { 
    // TODO Auto-generated method stub 

    } 
    }); 

} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 
    if (id == R.id.action_settings) { 
    Toast.makeText(getApplicationContext(), "Settings Clicked", 
    Toast.LENGTH_SHORT).show(); 
    return true; 
    } else if (id == R.id.action_search) { 
    Toast.makeText(getApplicationContext(), "Search Clicked", 
    Toast.LENGTH_SHORT).show(); 
    return true; 
    } else if (id == R.id.action_add) { 
    Toast.makeText(getApplicationContext(), "Add Clicked", 
    Toast.LENGTH_SHORT).show(); 
    return true; 
    } else if (id == R.id.action_delete) { 
    Toast.makeText(getApplicationContext(), "Delete Clicked", 
    Toast.LENGTH_SHORT).show(); 
    return true; 
    } 
    return super.onOptionsItemSelected(item); 
} 
} 

请参阅微调这个样子的