DrawerLayout, androiddrawerlayout

DrawerLayout, androiddrawerlayout

1. main layout:

<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=".MainActivity">    <android.support.v4.widget.DrawerLayout        android:id="@+id/drawer_layout"        android:layout_width="match_parent"        android:layout_height="match_parent">        <!-- Main -->        <FrameLayout            android:id="@+id/fl_main"            android:layout_width="match_parent"            android:layout_height="match_parent">            <Button                android:id="@+id/btn_open"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="Open" />        </FrameLayout>        <!-- Drawer -->        <ListView            android:id="@+id/lv_drawer"            android:background="#EEEEEE"            android:layout_width="240dp"            android:layout_height="match_parent"            android:layout_gravity="start" />    </android.support.v4.widget.DrawerLayout></RelativeLayout>

2. list item layout

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:padding="10dp"    android:layout_width="match_parent"    android:layout_height="match_parent">    <TextView        android:id="@+id/tv_drawer_list_item"        android:textSize="20sp"        android:layout_width="wrap_content"        android:layout_height="wrap_content" /></RelativeLayout>

3. java code:

package com.torv.lijian.drawerdemo;import android.app.Activity;import android.os.Bundle;import android.support.v4.widget.DrawerLayout;import android.view.Gravity;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.ListView;import android.widget.TextView;import java.util.ArrayList;import java.util.List;public class MainActivity extends Activity {    private DrawerLayout mDrawerLayout = null;    private Button mBtnOpen;    private ListView mLvDrawer;    List<String> mListData;    LayoutInflater inflater = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        inflater = LayoutInflater.from(MainActivity.this);        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);        mBtnOpen = (Button) findViewById(R.id.btn_open);        mBtnOpen.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                mDrawerLayout.openDrawer(Gravity.LEFT);            }        });        mLvDrawer = (ListView)findViewById(R.id.lv_drawer);        mListData = new ArrayList<>();        mListData.add("This is Item 1");        mListData.add("This is Item 2");        mListData.add("This is Item 3");        mListData.add("This is Item 4");        MyAdapter adapter = new MyAdapter();        mLvDrawer.setAdapter(adapter);    }    class MyAdapter extends BaseAdapter {        @Override        public int getCount() {            return mListData.size();        }        @Override        public Object getItem(int position) {            return null;        }        @Override        public long getItemId(int position) {            return 0;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            TextView tv = null;            if(null == convertView){                convertView = inflater.inflate(R.layout.drawer_list_item, null);                tv = (TextView)convertView.findViewById(R.id.tv_drawer_list_item);            }else{                tv = (TextView)convertView.findViewById(R.id.tv_drawer_list_item);            }            tv.setText(mListData.get(position));            return convertView;        }    }}

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