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我在网上找的示例，打开后一直是黑色背景。。
搜索后说加一句：mDrawerLayout.setScrimColor(Color.TRANSPARENT);
但是加上还是有黑色阴影啊。。是不是加错地方了？
DrawerLayoutDemo .java
package com.example.drawerlayouttest;
import android.os.Bundle;
import android.app.Activity;
import android.content.res.Configuration;
import android.graphics.Color;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
public class DrawerLayoutDemo extends Activity
{
private String[] mPlanetTitles;
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
private ListView mDrawerList;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_drawer);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
// init the ListView and Adapter, nothing new
initListView();
// set a custom shadow that overlays the main content when the drawer
// opens
// mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
// GravityCompat.START);
// 去除抽屉里的阴影0_0为什么不起作用呢？
// mDrawerLayout.setScrimColor(Color.TRANSPARENT);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, R.string.drawer_open,
R.string.drawer_close)
{
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view)
{
invalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView)
{
invalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
};
// Set the drawer toggle as the DrawerListener
mDrawerLayout.setDrawerListener(mDrawerToggle);
// enable ActionBar app icon to behave as action to toggle nav drawer
getActionBar().setDisplayHomeAsUpEnabled(true);
// getActionBar().setHomeButtonEnabled(true);
// Note: getActionBar() Added in API level 11
}
private void initListView()
{
mDrawerList = (ListView) findViewById(R.id.left_drawer);
mPlanetTitles = getResources().getStringArray(R.array.planets_array);
// Set the adapter for the list view
mDrawerList.setAdapter(new ArrayAdapter(this,
android.R.layout.simple_list_item_1, mPlanetTitles));
// Set the list's click listener
mDrawerList.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView parent, View view,
int position, long id)
{
// Highlight the selected item, update the title, and close the
// drawer
mDrawerList.setItemChecked(position, true);
setTitle(mPlanetTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
});
}
@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);
mDrawerToggle.onConfigurationChanged(newConfig);
}
@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);
}
}
activity_drawer.xml
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发表于 2016-8-29 21:38:38
楼主
