Android学习教程之九宫格图片展示（13）

本文实例为大家分享了Android九宫格图片展示的具体代码，供大家参考，具体内容如下

MainActivity.java代码:

package siso.ninegridimg;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 }
}

GridStyleActivity.java代码:

package siso.ninegridimg;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import com.jaeger.ninegridimageview.NineGridImageView;
import com.jaeger.ninegridimgdemo.R;
import com.jaeger.ninegridimgdemo.adapter.PostAdapter;
import com.jaeger.ninegridimgdemo.entity.Post;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Created by Jaeger on 16/2/24.
 *
 * Email: chjie.jaeger@gamil.com
 * GitHub: https://github.com/laobie
 */
public class GridStyleActivity extends AppCompatActivity {

 private RecyclerView mRvPostLister;
 private PostAdapter mNineImageAdapter;

 private List<Post> mPostList;
 private String[] IMG_URL_LIST = {
 "http://ac-QYgvX1CC.clouddn.com/36f0523ee1888a57.jpg",
 "http://ac-QYgvX1CC.clouddn.com/07915a0154ac4a64.jpg",
 "http://ac-QYgvX1CC.clouddn.com/9ec4bc44bfaf07ed.jpg",
 "http://ac-QYgvX1CC.clouddn.com/fa85037f97e8191f.jpg",
 "http://ac-QYgvX1CC.clouddn.com/de13315600ba1cff.jpg",
 "http://ac-QYgvX1CC.clouddn.com/15c5c50e941ba6b0.jpg",
 "http://ac-QYgvX1CC.clouddn.com/10762c593798466a.jpg",
 "http://ac-QYgvX1CC.clouddn.com/eaf1c9d55c5f9afd.jpg",
 "http://ac-QYgvX1CC.clouddn.com/ad99de83e1e3f7d4.jpg",
 "http://ac-QYgvX1CC.clouddn.com/233a5f70512befcc.jpg",
 };

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_recycler);
 setSupportActionBar((Toolbar) findViewById(R.id.toolbar));

 mRvPostLister = (RecyclerView) findViewById(R.id.rv_post_list);
 mRvPostLister.setLayoutManager(new LinearLayoutManager(this));

 mPostList = new ArrayList<>();
 for (int i = 0; i < 18; i++) {
 List<String> imgUrls = new ArrayList<>();
 imgUrls.addAll(Arrays.asList(IMG_URL_LIST).subList(0, i % 9));
 Post post = new Post("Am I handsome? Am I handsome? Am I handsome?", imgUrls);
 mPostList.add(post);
 }

 mNineImageAdapter = new PostAdapter(this, mPostList, NineGridImageView.STYLE_GRID);
 mRvPostLister.setAdapter(mNineImageAdapter);
 }
}

FillStyleActivity.java代码:

package siso.ninegridimg;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import com.jaeger.ninegridimageview.NineGridImageView;
import com.jaeger.ninegridimgdemo.R;
import com.jaeger.ninegridimgdemo.adapter.PostAdapter;
import com.jaeger.ninegridimgdemo.entity.Post;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Created by Jaeger on 16/2/24.
 *
 * Email: chjie.jaeger@gamil.com
 * GitHub: https://github.com/laobie
 */
public class FillStyleActivity extends AppCompatActivity {

 private RecyclerView mRvPostLister;
 private PostAdapter mPostAdapter;

 private List<Post> mPostList;
 private String[] IMG_URL_LIST = {
 "https://pic4.zhimg.com/02685b7a5f2d8cbf74e1fd1ae61d563b_xll.jpg",
 "https://pic4.zhimg.com/fc04224598878080115ba387846eabc3_xll.jpg",
 "https://pic3.zhimg.com/d1750bd47b514ad62af9497bbe5bb17e_xll.jpg",
 "https://pic4.zhimg.com/da52c865cb6a472c3624a78490d9a3b7_xll.jpg",
 "https://pic3.zhimg.com/0c149770fc2e16f4a89e6fc479272946_xll.jpg",
 "https://pic1.zhimg.com/76903410e4831571e19a10f39717988c_xll.png",
 "https://pic3.zhimg.com/33c6cf59163b3f17ca0c091a5c0d9272_xll.jpg",
 "https://pic4.zhimg.com/52e093cbf96fd0d027136baf9b5cdcb3_xll.png",
 "https://pic3.zhimg.com/f6dc1c1cecd7ba8f4c61c7c31847773e_xll.jpg",
 };

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_recycler);
 setSupportActionBar((Toolbar) findViewById(R.id.toolbar));

 mRvPostLister = (RecyclerView) findViewById(R.id.rv_post_list);
 mRvPostLister.setLayoutManager(new LinearLayoutManager(this));

 mPostList = new ArrayList<>();
 for (int i = 0; i < 18; i++) {
 List<String> imgUrls = new ArrayList<>();
 imgUrls.addAll(Arrays.asList(IMG_URL_LIST).subList(0, i % 9 + 1));
 Post post = new Post("看图，字不重要。想看大图？抱歉我还没做这个 ( •̀ .̫ •́ )", imgUrls);
 mPostList.add(post);
 }
 mPostAdapter = new PostAdapter(this, mPostList, NineGridImageView.STYLE_FILL);
 mRvPostLister.setAdapter(mPostAdapter);
 }
}

PostAdapter.java代码:

package siso.ninegridimg.adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import java.util.List;

import siso.ninegridimg.R;
import siso.ninegridimg.entity.Post;
import siso.nineimglib.NineGridImageView;
import siso.nineimglib.NineGridImageViewAdapter;

public class PostAdapter extends RecyclerView.Adapter<PostAdapter.PostViewHolder> {
 private LayoutInflater mInflater;
 private List<Post> mPostList;
 private int mShowStyle;

 public PostAdapter(Context context, List<Post> postList, int showStyle) {
 super();
 mPostList = postList;
 mInflater = LayoutInflater.from(context);
 mShowStyle = showStyle;
 }

 @Override
 public void onBindViewHolder(PostViewHolder holder, int position) {
 holder.bind(mPostList.get(position));
 }

 @Override
 public int getItemCount() {
 return mPostList.size();
 }

 @Override
 public PostViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
 if (mShowStyle == NineGridImageView.STYLE_FILL) {
 return new PostViewHolder(mInflater.inflate(R.layout.item_post_fill_style, parent, false));
 } else {
 return new PostViewHolder(mInflater.inflate(R.layout.item_post_grid_style, parent, false));
 }
 }

 public class PostViewHolder extends RecyclerView.ViewHolder {
 private NineGridImageView mNglContent;
 private TextView mTvContent;

 private NineGridImageViewAdapter<String> mAdapter = new NineGridImageViewAdapter<String>() {
 @Override
 protected void onDisplayImage(Context context, ImageView imageView, String s) {
 Picasso.with(context)
  .load(s)
  .placeholder(R.drawable.ic_default_image)
  .into(imageView);
 }

 @Override
 protected ImageView generateImageView(Context context) {
 return super.generateImageView(context);
 }

 @Override
 protected void onItemImageClick(Context context, int index, List<String> list) {
 Toast.makeText(context, "image position is " + index, Toast.LENGTH_SHORT).show();
 }
 };

 public PostViewHolder(View itemView) {
 super(itemView);
 mTvContent = (TextView) itemView.findViewById(R.id.tv_content);
 mNglContent = (NineGridImageView) itemView.findViewById(R.id.ngl_images);
 mNglContent.setAdapter(mAdapter);
 }

 public void bind(Post post) {
 mNglContent.setImagesData(post.getImgUrlList());
 mTvContent.setText(post.getContent());
 }
 }
}

Post.java代码:

package siso.ninegridimg.entity;

import java.util.List;

public class Post {
 private String mContent;
 private List<String> mImgUrlList;

 public Post() {
 }

 public Post(String content, List<String> imgUrlList) {
 mContent = content;
 mImgUrlList = imgUrlList;
 }

 public String getContent() {
 return mContent;
 }

 public void setContent(String content) {
 mContent = content;
 }

 public List<String> getImgUrlList() {
 return mImgUrlList;
 }

 public void setImgUrlList(List<String> imgUrlList) {
 mImgUrlList = imgUrlList;
 }
}

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<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"
 android:paddingBottom="@dimen/activity_vertical_margin"
 android:paddingLeft="@dimen/activity_horizontal_margin"
 android:paddingRight="@dimen/activity_horizontal_margin"
 android:paddingTop="@dimen/activity_vertical_margin"
 tools:context="siso.ninegridimg.MainActivity">

 <TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Hello World!" />
</RelativeLayout>

item_post_fill_style.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ngl="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="8dp"
android:background="@color/white"
android:orientation="vertical"
android:padding="8dp">

<TextView
 android:id="@+id/tv_content"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_marginBottom="8dp"
 android:textColor="#333333"
 android:textSize="16sp"/>

<com.jaeger.ninegridimageview.NineGridImageView
 android:id="@+id/ngl_images"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 ngl:imgGap="3dp"
 ngl:showStyle="fill"
 ngl:singleImgSize="160dp"/>
</LinearLayout>

item_post_grid_style.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:layout_margin="8dp"
 android:background="@color/white"
 android:orientation="vertical"
 android:padding="8dp">

 <TextView
 android:id="@+id/tv_content"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_marginBottom="8dp"
 android:textColor="#333333"
 android:textSize="16sp"
 tools:text="测试文字"/>

 <com.jaeger.ninegridimageview.NineGridImageView
 android:id="@+id/ngl_images"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 app:imgGap="3dp"
 app:maxSize="-1"
 app:showStyle="grid"
 app:singleImgSize="500dp"/>
</LinearLayout>

item_single_image.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:maxHeight="60dp"
 android:maxWidth="60dp"
 android:orientation="vertical">
 <ImageView
 android:id="@+id/iv_single"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:scaleType="fitStart"/>

</LinearLayout>

strings.xml

<resources>
 <string name="app_name">NineGridImg</string>

 <string name="fill_style">Fill Style</string>
 <string name="grid_style">Grid Style</string>
</resources>

styles.xml

<resources>

 <!-- Base application theme. -->
 <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
 <!-- Customize your theme here. -->
 <item name="colorPrimary">@color/colorPrimary</item>
 <item name="android:textAllCaps">false</item>
 <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
 <item name="colorAccent">@color/colorAccent</item>
 <item name="windowNoTitle">true</item>
 <item name="android:textColor">@color/white</item>
 <item name="windowActionBar">false</item>
 </style>

</resources>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="siso.ninegridimg">

 <application
 android:allowBackup="true"
 android:icon="@mipmap/ic_launcher"
 android:label="@string/app_name"
 android:supportsRtl="true"
 android:theme="@style/AppTheme">
 <activity android:name=".MainActivity">
 <intent-filter>
 <action android:name="android.intent.action.MAIN" />

 <category android:name="android.intent.category.LAUNCHER" />
 </intent-filter>
 </activity>
 </application>

</manifest>

build.gradle

apply plugin: 'com.android.application'

android {
 compileSdkVersion 23
 buildToolsVersion "23.0.1"

 defaultConfig {
 applicationId "siso.ninegridimg"
 minSdkVersion 22
 targetSdkVersion 22
 versionCode 1
 versionName "1.0"
 }
 buildTypes {
 release {
 minifyEnabled false
 proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
 }
 }
}

dependencies {
 compile fileTree(include: ['*.jar'], dir: 'libs')
 testCompile 'junit:junit:4.12'
 compile 'com.android.support:appcompat-v7:23.0.1'
 compile 'com.android.support:recyclerview-v7:23.3.0'
 compile 'com.squareup.picasso:picasso:2.5.2'
 compile project(path: ':nineimglib')
}

Android类库项目nineimglib

项目运行结果如图:

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。