So I have an old application. I wanted to add it a navigation drawer. So I want the navigation drawer to work with my current activity and to show ONLY on the currecnt activity
public class WebViewActivity extends Activity {
So the main activity is a webView.
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--
main content
-->
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff" >
<WebView
android:id="@+id/webView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff" />
</RelativeLayout>
<!--
navigation list item
-->
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<ListView
android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="left"
android:background="#2A323D"
android:cacheColorHint="#00000000"
android:choiceMode="singleChoice" />
</android.support.v4.widget.DrawerLayout>
So I expect my drawer to appear when I click the menu button or my webView detect the gesture left to right
mTitle = mDrawerTitle = getTitle();
mPlanetTitles = getResources().getStringArray(R.array.planets_array);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
drawerView = (View)findViewById(R.id.left_drawer);
mDrawerToggle = new ActionBarDrawerToggle(
this, /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description for accessibility */
R.string.drawer_close /* "close drawer" description for accessibility */
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerList.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_list_item, mPlanetTitles));
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
// enable ActionBar app icon to behave as action to toggle nav drawer
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
AND
webView.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
x1 = event.getX();
break;
case MotionEvent.ACTION_UP:
x2 = event.getX();
float deltaX = x2 - x1;
if (Math.abs(deltaX) > MIN_DISTANCE) {
mDrawerLayout.openDrawer(GravityCompat.START);
return false;
} else {
// consider as something else - a screen tap for example
}
break;
}
return true;
}
});
I really don't know what am I missing, but mDrawerLayout.openDrawer(GravityCompat.START); is not doing anything. There are no errors in the log. The suppossed drawer does not show up, nothing happens. I followed the official guide and more online. No luck.
I don't want to use Fragments!
UPDATE
The issue is that in my 'onCreate' I have something like: setContentView(webView);
So if I remove it, my navigation drawer works! BUT my webView does not. What am I missing?
从main_activity中删除FrameLayout,然后尝试
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff" >
<WebView
android:id="@+id/webView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff" />
</RelativeLayout>
<ListView
android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#2A323D"
android:cacheColorHint="#00000000"
android:choiceMode="singleChoice" />
</android.support.v4.widget.DrawerLayout>
Just copy and paste it
Your onCreate() must have setContentView(R.layout.drawer_layout);
where drawer_layout is the xml which has a DrawerLayout
as its root view
Follow the documentation Download sample code and see which xml is passed to setContentView()
If you follow it carefully you will notice activity_main.xml contains Drawerlayout and not the main content's xml.
Also keep in mind that DrawerLayout
must contain exactly two child ViewGroup
s, where the first can be a fragment or FrameLayout that populates a fragment at runtime AND the second must be NavigationView
If you are still confused you can follow this guide which has step-by-step instructions. Its worth a visit.
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