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September 1, 2016 01:40
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Android: Easiest way to reuse a common Navigation drawer among a group of activities.
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<?xml version="1.0" encoding="utf-8"?> | |
<android.support.v4.widget.DrawerLayout | |
android:id="@+id/drawer_layout" | |
xmlns:android="http://schemas.android.com/apk/res/android" | |
android:layout_width="match_parent" | |
android:layout_height="match_parent" | |
xmlns:app="http://schemas.android.com/apk/res-auto"> | |
<FrameLayout | |
android:id="@+id/view_stub" | |
android:layout_width="match_parent" | |
android:layout_height="match_parent"> | |
</FrameLayout> | |
<android.support.design.widget.NavigationView | |
android:id="@+id/navigation_view" | |
android:layout_width="240dp" | |
android:layout_height="match_parent" | |
android:layout_gravity="start" | |
app:menu="@menu/menu_test" | |
/> | |
</android.support.v4.widget.DrawerLayout> |
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/* | |
* This is a simple and easy approach to reuse the same | |
* navigation drawer on your other activities. Just create | |
* a base layout that conains a DrawerLayout, the | |
* navigation drawer and a FrameLayout to hold your | |
* content view. All you have to do is to extend your | |
* activities from this class to set that navigation | |
* drawer. Happy hacking :) | |
* P.S: You don't need to declare this Activity in the | |
* AndroidManifest.xml. This is just a base class. | |
*/ | |
import android.content.Intent; | |
import android.content.res.Configuration; | |
import android.os.Bundle; | |
import android.support.design.widget.NavigationView; | |
import android.support.v4.widget.DrawerLayout; | |
import android.support.v7.app.ActionBarDrawerToggle; | |
import android.support.v7.app.AppCompatActivity; | |
import android.view.LayoutInflater; | |
import android.view.Menu; | |
import android.view.MenuItem; | |
import android.view.View; | |
import android.view.ViewGroup; | |
import android.widget.FrameLayout; | |
public abstract class AppBaseActivity extends AppCompatActivity implements MenuItem.OnMenuItemClickListener { | |
private FrameLayout view_stub; //This is the framelayout to keep your content view | |
private NavigationView navigation_view; // The new navigation view from Android Design Library. Can inflate menu resources. Easy | |
private DrawerLayout mDrawerLayout; | |
private ActionBarDrawerToggle mDrawerToggle; | |
private Menu drawerMenu; | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
super.setContentView(R.layout.app_base_layout);// The base layout that contains your navigation drawer. | |
view_stub = (FrameLayout) findViewById(R.id.view_stub); | |
navigation_view = (NavigationView) findViewById(R.id.navigation_view); | |
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); | |
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, 0, 0); | |
mDrawerLayout.setDrawerListener(mDrawerToggle); | |
getSupportActionBar().setDisplayHomeAsUpEnabled(true); | |
drawerMenu = navigation_view.getMenu(); | |
for(int i = 0; i < drawerMenu.size(); i++) { | |
drawerMenu.getItem(i).setOnMenuItemClickListener(this); | |
} | |
// and so on... | |
} | |
@Override | |
protected void onPostCreate(Bundle savedInstanceState) { | |
super.onPostCreate(savedInstanceState); | |
mDrawerToggle.syncState(); | |
} | |
@Override | |
public void onConfigurationChanged(Configuration newConfig) { | |
super.onConfigurationChanged(newConfig); | |
mDrawerToggle.onConfigurationChanged(newConfig); | |
} | |
/* Override all setContentView methods to put the content view to the FrameLayout view_stub | |
* so that, we can make other activity implementations looks like normal activity subclasses. | |
*/ | |
@Override | |
public void setContentView(int layoutResID) { | |
if (view_stub != null) { | |
LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE); | |
ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams( | |
ViewGroup.LayoutParams.MATCH_PARENT, | |
ViewGroup.LayoutParams.MATCH_PARENT); | |
View stubView = inflater.inflate(layoutResID, view_stub, false); | |
view_stub.addView(stubView, lp); | |
} | |
} | |
@Override | |
public void setContentView(View view) { | |
if (view_stub != null) { | |
ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams( | |
ViewGroup.LayoutParams.MATCH_PARENT, | |
ViewGroup.LayoutParams.MATCH_PARENT); | |
view_stub.addView(view, lp); | |
} | |
} | |
@Override | |
public void setContentView(View view, ViewGroup.LayoutParams params) { | |
if (view_stub != null) { | |
view_stub.addView(view, params); | |
} | |
} | |
@Override | |
public boolean onOptionsItemSelected(MenuItem item) { | |
// Pass the event to ActionBarDrawerToggle, if it returns | |
// true, then it has handled the app icon touch event | |
if (mDrawerToggle.onOptionsItemSelected(item)) { | |
return true; | |
} | |
// Handle your other action bar items... | |
return super.onOptionsItemSelected(item); | |
} | |
@Override | |
public boolean onMenuItemClick(MenuItem item) { | |
switch (item.getItemId()) { | |
case R.id.item1: | |
// handle it | |
break; | |
case R.id.item2: | |
// do whatever | |
break; | |
// and so on... | |
} | |
return false; | |
} | |
} |
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