我正在我的应用中实现导航抽屉，我想使用Material Design。
我使用以下参考来创建导航抽屉link。
它对我来说很好。导航抽屉正常工作，从左向右滑动。
现在，我必须使用从右向左滑动来实现我的导航抽屉。我做了以下更改。听到我的代码
档案：MainActivity.java
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
public class MainActivity extends ActionBarActivity {
String TITLES[] = {"Home","Events","Mail","Shop","Travel"};
int ICONS[] = {R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher};
//Similarly we Create a String Resource for the name and email in the header view
//And we also create a int resource for profile picture in the header view
String NAME = "Akash Bangad";
String EMAIL = "akash.bangad@android4devs.com";
int PROFILE = R.mipmap.ic_profile;
private Toolbar toolbar; // Declaring the Toolbar Object
RecyclerView mRecyclerView; // Declaring RecyclerView
RecyclerView.Adapter mAdapter; // Declaring Adapter For Recycler View
RecyclerView.LayoutManager mLayoutManager; // Declaring Layout Manager as a linear layout manager
DrawerLayout Drawer; // Declaring DrawerLayout
private ActionBarDrawerToggle mDrawerToggle; // Declaring Action Bar Drawer Toggle
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/* Assinging the toolbar object ot the view
and setting the the Action bar to our toolbar
*/
toolbar = (Toolbar) findViewById(R.id.tool_bar);
setSupportActionBar(toolbar);
//getSupportActionBar().setHomeButtonEnabled(true);
//getSupportActionBar().setDisplayHomeAsUpEnabled(true);
//toolbar.setNavigationIcon(getResources().getDrawable(R.mipmap.ic_launcher));
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d("cek", "home selected");
if (Drawer.isDrawerOpen(Gravity.RIGHT)) {
Drawer.closeDrawer(Gravity.RIGHT);
} else {
Drawer.openDrawer(Gravity.RIGHT);
}
}
});
mRecyclerView = (RecyclerView) findViewById(R.id.RecyclerView); // Assigning the RecyclerView Object to the xml View
mRecyclerView.setHasFixedSize(true); // Letting the system know that the list objects are of fixed size
mAdapter = new MyAdapter(TITLES,ICONS,NAME,EMAIL,PROFILE); // Creating the Adapter of MyAdapter class(which we are going to see in a bit)
// And passing the titles,icons,header view name, header view email,
// and header view profile picture
mRecyclerView.setAdapter(mAdapter); // Setting the adapter to RecyclerView
mLayoutManager = new LinearLayoutManager(this); // Creating a layout Manager
mRecyclerView.setLayoutManager(mLayoutManager); // Setting the layout Manager
Drawer = (DrawerLayout) findViewById(R.id.DrawerLayout); // Drawer object Assigned to the view
mDrawerToggle = new ActionBarDrawerToggle(this,Drawer,toolbar,R.string.openDrawer,R.string.closeDrawer){
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
// code here will execute once the drawer is opened( As I dont want anything happened whe drawer is
// open I am not going to put anything here)
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
// Code here will execute once drawer is closed
}
}; // Drawer Toggle Object Made
/*Drawer.setDrawerListener(mDrawerToggle); // Drawer Listener set to the Drawer toggle*/
/* mDrawerToggle = new ActionBarDrawerToggle(this, Drawer,
R.mipmap.ic_launcher, //navigation menu toggle icon
R.string.app_name,
R.string.app_name
) {
public void onDrawerClosed(View view) {
Log.e("onDrawerClosed", "onDrawerClosed");
}
public void onDrawerOpened(View drawerView) {
Log.e("onDrawerOpened","onDrawerOpened");
}
};*/
/*mDrawerToggle = new ActionBarDrawerToggle(this, Drawer, toolbar,R.string.openDrawer,R.string.closeDrawer) {
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item != null && item.getItemId() == android.R.id.home) {
if (Drawer.isDrawerOpen(Gravity.RIGHT)) {
Drawer.closeDrawer(Gravity.RIGHT);
} else {
Drawer.openDrawer(Gravity.RIGHT);
}
}
return true;
}
public void onDrawerClosed(View view) {
Log.e("onDrawerClosed", "onDrawerClosed");
}
public void onDrawerOpened(View drawerView) {
Log.e("onDrawerOpened","onDrawerOpened");
}
};*/
Drawer.setDrawerListener(mDrawerToggle);
mDrawerToggle.syncState(); // Finally we set the drawer toggle sync State
/* setActionBarUpIndicator((Drawable) mSlider,
Drawer.isDrawerOpen(Gravity.RIGHT) ?
mCloseDrawerContentDescRes : mOpenDrawerContentDescRes);*/
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
if (item != null && item.getItemId() == android.R.id.home) {
//open close drawer
if (Drawer.isDrawerOpen(Gravity.RIGHT)) {
Drawer.closeDrawer(Gravity.RIGHT);
} else {
Drawer.openDrawer(Gravity.RIGHT);
}
return true;
}
return super.onOptionsItemSelected(item);
}
}
档案：activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/DrawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:elevation="7dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="@+id/tool_bar"
layout="@layout/toolbar">
</include>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World" />
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/RecyclerView"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="end"
android:background="#ffffff"
android:scrollbars="vertical">
</android.support.v7.widget.RecyclerView>
</android.support.v4.widget.DrawerLayout>
这里我使用了android.support.v7.app.ActionBarDrawerToggle导入ActionBarDrawerToggle。但如果我使用android.support.v4.app.ActionBarDrawerToggle我可以使用它，那么问题是我没有得到默认情况下在材料设计中的后退按钮效果。
如果我使用V4库，那么我就无法直接使用工具栏，还必须启用并显示主页按钮。
如果我使用V7库，基本上我无法使用Gravity.RIGHT。我该如何覆盖该方法。
文件：错误日志
06-17 17:06:22.772 3296-3296/com.demo.nasir.materialdesign E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.demo.nasir.materialdesign, PID: 3296
java.lang.IllegalArgumentException: No drawer view found with gravity LEFT
at android.support.v4.widget.DrawerLayout.openDrawer(DrawerLayout.java:1322)
at android.support.v7.app.ActionBarDrawerToggle.toggle(ActionBarDrawerToggle.java:289)
at android.support.v7.app.ActionBarDrawerToggle.access$100(ActionBarDrawerToggle.java:65)
at android.support.v7.app.ActionBarDrawerToggle$1.onClick(ActionBarDrawerToggle.java:201)
at android.view.View.performClick(View.java:4463)
at android.view.View$PerformClick.run(View.java:18789)
at android.os.Handler.handleCallback(Handler.java:808)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5299)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:825)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:641)
at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：0)
使用子视图上的android：layout_gravity属性控制抽屉定位和布局，该属性对应于您希望抽屉出现的视图的哪一侧：左侧或右侧。 （或者在支持布局方向的平台版本上开始/结束。）
XML中的将重力更改为RIGHT
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<FrameLayout
android:id="@+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:baselineAligned="false" >
</FrameLayout>
<!-- Left drawer -->
<ListView
android:id="@+id/left_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="left"
android:choiceMode="singleChoice" />
<!-- Right drawer -->
<ListView
android:id="@+id/right_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="right"
android:choiceMode="singleChoice" />
</android.support.v4.widget.DrawerLayout>
和java
添加此内容
如果您正在使用Android Studio创建的导航抽屉项目，则onOptionsItemSelected会发生变化。由于他们创建了子类，因此必须使用此代码
if (item != null && id == android.R.id.home) {
if (mNavigationDrawerFragment.isDrawerOpen(Gravity.RIGHT)) {
mNavigationDrawerFragment.closeDrawer(Gravity.RIGHT);
} else {
mNavigationDrawerFragment.openDrawer(Gravity.RIGHT);
}
return true;
}
下一步。在NavigationDrawerFragment类中，您必须创建3个方法：
方法1
public boolean isDrawerOpen(int gravity) {
return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(gravity);
}
方法2
public void closeDrawer(int gravity) {
mDrawerLayout.closeDrawer(gravity);
}
方法3
public void openDrawer(int gravity) {
mDrawerLayout.openDrawer(gravity);
}