DrawerLayout

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activity_drawerlayout.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".DrawerActivity" >    <android.support.v4.widget.DrawerLayout        android:id="@+id/drawer_layout"        android:layout_width="match_parent"        android:layout_height="match_parent" >        <!-- The main content view -->        <FrameLayout            android:id="@+id/content_frame"            android:layout_width="match_parent"            android:layout_height="match_parent" >            <Button                android:id="@+id/btn"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:text="open"                 />        </FrameLayout>        <!-- The navigation drawer -->        <ListView            android:id="@+id/left_drawer"            android:layout_width="240dp"            android:layout_height="match_parent"            android:layout_gravity="start"            android:background="#111"            android:choiceMode="singleChoice"            android:divider="@android:color/transparent"            android:dividerHeight="0dp" />    </android.support.v4.widget.DrawerLayout></RelativeLayout>

DrawerLayoutActivity.java

import android.os.Bundle;import android.app.Activity;import android.support.v4.widget.DrawerLayout;import android.view.Gravity;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class DrawerLayoutActivity extends Activity{    private DrawerLayout mDrawerLayout = null;    @Override    protected void onCreate(Bundle savedInstanceState)    {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_drawerlayout);        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);        Button button = (Button) findViewById(R.id.btn);        button.setOnClickListener(new OnClickListener()        {            @Override            public void onClick(View v)            {                // 按钮按下，将抽屉打开                mDrawerLayout.openDrawer(Gravity.LEFT);            }        });    }}

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