1.侧滑布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:id="@+id/image111"
android:layout_width="100dp"
android:layout_height="100dp"
android:src="@mipmap/ic_launcher"/>
<ListView
android:id="@+id/menus"
android:layout_width="match_parent"
android:layout_height="match_parent"></ListView>
</LinearLayout>
2.text
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/text"
android:gravity="center"
android:layout_width="200dp"
android:layout_height="200dp" />
</LinearLayout>
3.Adapter
package com.bw.ymy.zonghe1.Adapter;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.bw.ymy.zonghe1.R;
public class leftAdapter extends BaseAdapter {
private Context context;
//z左边展示数据
private String[] menus=new String[]
{
"我的","电影","首页"
};
public leftAdapter(Context context) {
this.context = context;
}
private final int ITEM_COUTN = 2;
private final int IMAGE_TYPE = 0;
private final int TEXT_TYPE = 1;
@Override
public int getCount() {
return menus.length+1;
}
@Override
public int getViewTypeCount() {
return ITEM_COUTN;
}
@Override
public int getItemViewType(int position) {
return position==0?IMAGE_TYPE:TEXT_TYPE;
}
@Override
public String getItem(int position) {
if(position==0)
{
return null;
}
return menus[position-1];
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder=null;
if(convertView==null)
{
convertView=LayoutInflater.from(context).inflate(R.layout.lefttext,parent,false);
holder=new ViewHolder(convertView);
}else
{
holder = (ViewHolder) convertView.getTag();
}
if(getItemViewType(position)==TEXT_TYPE)
{
holder.bind(getItem(position));
}
return convertView;
}
//创建类
class ViewHolder{
TextView text;
ImageView icon;
public ViewHolder(View convertView)
{
icon=convertView.findViewById(R.id.icon);
text=convertView.findViewById(R.id.text);
}
//赋值
public void bind(String item)
{
text.setText(item);
}
}
}
4.Fragment
package com.bw.ymy.zonghe1.Fragment;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.content.CursorLoader;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.ListView;
import com.bw.ymy.zonghe1.Adapter.leftAdapter;
import com.bw.ymy.zonghe1.MainActivity;
import com.bw.ymy.zonghe1.R;
import com.bw.ymy.zonghe1.nutil.Bitmap;
public class leftfragment extends Fragment {
private ListView listview;
private leftAdapter adapter;
private ImageView image11;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.leftfragment,container,false);
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
//获取资源id
listview=view.findViewById(R.id.menus);
image11=view.findViewById(R.id.image111);
listview.setAdapter(new leftAdapter(getActivity()));
image11.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent(Intent.ACTION_PICK);
intent.setType("image/*");
startActivityForResult(intent,100);
}
});
//点击跳转
listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
((MainActivity)getActivity()).shpwpage(position-1);
}
});
}
private String url2path(Uri uri)
{
String[] proj={MediaStore.Images.Media.DATA};
CursorLoader loader=new CursorLoader(getActivity(),uri,proj,null,null,null);
Cursor cursor=loader.loadInBackground();
int columnIndexOrThrow = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(columnIndexOrThrow);
}
private void progressimage(String s)
{
int size=getResources().getDimensionPixelSize(R.dimen.leftIconSize);
android.graphics.Bitmap bitmap = Bitmap.scaleBitmap(s, size, size);
image11.setImageBitmap(bitmap);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 100) {
Uri uri = data.getData();
progressimage(url2path(uri));
return;
}
super.onActivityResult(requestCode, resultCode, data);
}
}
5.二次采样
package com.bw.ymy.zonghe1.nutil;
import android.graphics.BitmapFactory;
public class Bitmap {
public static android.graphics.Bitmap scaleBitmap(String imagepath, int width, int height)
{
BitmapFactory.Options options=new BitmapFactory.Options();
options.inJustDecodeBounds=true;
BitmapFactory.decodeFile(imagepath,options);
options.inSampleSize=Math.max(options.outWidth/width,options.outHeight/height);
options.inJustDecodeBounds=false;
return BitmapFactory.decodeFile(imagepath,options);
}
}
6.App
package com.bw.ymy.zonghe1.nutil;
import android.app.Application;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
public class App extends Application {
@Override
public void onCreate() {
super.onCreate();
ImageLoaderConfiguration configuration=null;
DisplayImageOptions options=new DisplayImageOptions.Builder().build();
configuration=new ImageLoaderConfiguration.Builder(this)
.diskCacheSize(50*1024*1024)
.build();
ImageLoader.getInstance().init(configuration);
}
}