不多說上程式碼

public abstract class NineGridAdapter {
  protected Context context;
  protected List list;

  public NineGridAdapter(Context context,List list) {
    this.context = context;
    this.list = list;
  }

  public abstract int getCount();

  public abstract String getUrl(int positopn);

  public abstract Object getItem(int position);

  public abstract long getItemId(int position);

  public abstract View getView(int i,View view);

}

package com.wd.weidologin.pic;

import android.content.Context;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

public class NineGridlayout extends ViewGroup {
  private NineGridAdapter adapter;
  private OnItemClickListerner onItemClickListerner;

  // 行間距
  private int lineSpace;
  //列間距
  private int gap;

  private final int DEFAULT_WIDTH = 140;

  private int columns;//
  private int rows;//
  private int totalWidth;
  private Context context;
  int singleWidth = 0,singleHeight = 0;
  private int defaultWidth,defaultHeight;

  private int oldCount;

  public NineGridlayout(Context context) {
    this(context,null);
  }

  public NineGridlayout(Context context,AttributeSet attrs) {
    this(context,attrs,0);
  }

  public NineGridlayout(Context context,AttributeSet attrs,int defStyleAttr) {
    super(context,defStyleAttr);
    this.context = context;
    gap = dip2px(context,10);
    lineSpace = dip2px(context,10);
    ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT);

    defaultWidth = defaultHeight = dip2px(context,DEFAULT_WIDTH);
  }

  public void setDefaultWidth(int defaultWidth) {
    this.defaultWidth = defaultWidth;
  }

  public void setDefaultHeight(int defaultHeight) {
    this.defaultHeight = defaultHeight;
  }

  public void setAdapter(NineGridAdapter adapter) {
    this.adapter = adapter;
    if (adapter == null) {
      return;
    }
    //初始化佈局形狀
    generateChildrenLayout(adapter.getCount());
    //這裡做一個重用view的處理
//    if (oldCount == 0) {
    removeAllViews();
    for (int i = 0; i < adapter.getCount(); i++) {
      View itemView = adapter.getView(i,null);
      addView(itemView,generateDefaultLayoutParams());
    }
//    }
     /*else {
      //以前新增過view
      int newViewCount = adapter.getCount();
      if (oldCount > newViewCount) {
        removeViews(newViewCount - 1,oldCount - newViewCount);
        for (int i = 0; i < newViewCount - 1; i++) {
          adapter.getView(i,getChildAt(i));
        }
      } else if (oldCount < newViewCount) {
        for (int i = 0; i < newViewCount - oldCount; i++) {
          View itemView = adapter.getView(i,null);
          addView(itemView,generateDefaultLayoutParams());
        }
      }
    }*/

    oldCount = adapter.getCount();
    requestLayout();
  }

  @Override
  protected void onMeasure(int widthMeasureSpec,int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec,heightMeasureSpec);
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    int sizeWidth = MeasureSpec.getSize(widthMeasureSpec);
    int sizeHeight = MeasureSpec.getSize(heightMeasureSpec);
    totalWidth = sizeWidth - getPaddingLeft() - getPaddingRight();
    if (adapter != null && adapter.getCount() > 0) {
      int measureWidth,measureHeight;
      int childrenCount = adapter.getCount();
      if (childrenCount == 1) {
        singleWidth = defaultWidth;
        singleHeight = defaultHeight;
      } else {
        singleWidth = (totalWidth - gap * (3 - 1)) / 3;
        singleHeight = singleWidth;
      }
      measureChildren(MeasureSpec.makeMeasureSpec(singleWidth,MeasureSpec.EXACTLY),MeasureSpec.makeMeasureSpec(singleHeight,MeasureSpec.EXACTLY));
      measureWidth = singleWidth * columns + gap * (columns - 1);
      measureHeight = singleHeight * rows + lineSpace * (rows - 1);
      setMeasuredDimension(sizeWidth,measureHeight);
    }
  }

  @Override
  protected void onLayout(boolean changed,int l,int t,int r,int b) {

    layoutChildrenView();
  }

  private void layoutChildrenView() {
    if (adapter == null || adapter.getCount() == 0) {
      return;
    }
    int childrenCount = adapter.getCount();
    for (int i = 0; i < childrenCount; i++) {
      int[] position = findPosition(i);
      int left = (singleWidth + gap) * position[1] + getPaddingLeft();
      int top = (singleHeight + lineSpace) * position[0] + getPaddingTop();
      int right = left + singleWidth;
      int bottom = top + singleHeight;
      ImageView childrenView = (ImageView) getChildAt(i);
      if (childrenCount == 1) {
        //只有一張圖片
        childrenView.setScaleType(ImageView.ScaleType.FIT_CENTER);
      } else {
        childrenView.setScaleType(ImageView.ScaleType.CENTER_CROP);
      }

      final int itemPosition = i;
      childrenView.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
          if (onItemClickListerner != null) {
            onItemClickListerner.onItemClick(v,itemPosition);
          }
        }
      });
      childrenView.layout(left,top,right,bottom);
    }
  }


  private int[] findPosition(int childNum) {
    int[] position = new int[2];
    for (int i = 0; i < rows; i++) {
      for (int j = 0; j < columns; j++) {
        if ((i * columns + j) == childNum) {
          position[0] = i;//行
          position[1] = j;//列
          break;
        }
      }
    }
    return position;
  }

  public int getGap() {
    return gap;
  }

  public void setGap(int gap) {
    this.gap = gap;
  }

  /**
   * 根據圖片個數確定行列數量
   * 對應關係如下
   * num	row	column
   * 1	  1	1
   * 2	  1	2
   * 3	  1	3
   * 4	  2	2
   * 5	  2	3
   * 6	  2	3
   * 7	  3	3
   * 8	  3	3
   * 9	  3	3
   *
   * @param length
   */
  private void generateChildrenLayout(int length) {
    if (length <= 3) {
      rows = 1;
      columns = length;
    } else if (length <= 6) {
      rows = 2;
      columns = 3;
      if (length == 4) {
        columns = 2;
      }
    } else {
      rows = 3;
      columns = 3;
    }
  }

  /**
   * dp to px
   */
  public static int dip2px(Context context,double dpValue) {
    final float scale = context.getResources().getDisplayMetrics().density;
    return (int) (dpValue * scale + 0.5f);
  }

  public void setOnItemClickListerner(OnItemClickListerner onItemClickListerner) {
    this.onItemClickListerner = onItemClickListerner;
  }

  public interface OnItemClickListerner {
    public void onItemClick(View view,int position);
  }

}

package com.wd.weidologin.home;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.Toast;

import com.bumptech.glide.Glide;
import com.google.gson.Gson;
import com.wd.weidologin.R;
import com.wd.weidologin.adapter.AttentionRequestAdapter;
import com.wd.weidologin.okutil.okRE;
import com.wd.weidologin.pic.NineGridAdapter;
import com.wd.weidologin.pic.NineGridlayout;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class MainActivity2 extends AppCompatActivity {
  private RecyclerView ry;
  private AttentionRequestAdapter attentionRequestAdapter;
  private ArrayList<CircleBean.ResultEntity> lists=new ArrayList<>();
  private NineGridlayout mGV;
  private CircleBean.ResultEntity result;
  private String picture;
  private List<String> list = new ArrayList<String>();
  private Adapter adapter;
  public static final String ACTION ="com.example.casts";
  private String msg;
  private SharedPreferences canfig;
  private SharedPreferences.Editor edited;
  private String imageUrl = "http://pic1.nipic.com/2008-09-08/200898163242920_2.jpg";//如果沒有介面可以用這個簡單代替這個就不需要進行切割了

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main2);
    init();//（有介面的情況）
    
     list.add(imageUrl);//沒有介面的情況 ---====================
     if (adapter == null){
      adapter = new Adapter(this,list);
      mGV.setAdapter(adapter);
    }

    mGV.setOnItemClickListerner(new NineGridlayout.OnItemClickListerner() {
      @Override
      public void onItemClick(View view,int position) {
        Toast.makeText(getApplicationContext(),String.valueOf(position),Toast.LENGTH_LONG).show();
      }
    });//沒有介面的情況 ---====================不要混


  }
  private void init() {
    // int sickCircleId = getIntent().getIntExtra("sickCircleId",0);
    canfig = getSharedPreferences("canfig",Context.MODE_PRIVATE);
    edited = canfig.edit();
    int resultkey = canfig.getInt("resultkey",0);

    String url="http:....."+resultkey;
    HashMap<String,String> headmap = new HashMap<>();
    headmap.put("userId","287");
    headmap.put("sessionId","1604985492394287");
    okRE.getInstance().getCircledetails(url,headmap,new okRE.NetCallBack() {

      @Override
      public void onSuccess(String string) {
        CircleBean circleBean = new Gson().fromJson(string,CircleBean.class);
        picture = circleBean.getResult().getPicture();
        Toast.makeText(MainActivity2.this,picture+"",Toast.LENGTH_SHORT).show();
        mGV = findViewById(R.id.d);
        String[] split = picture.split(",");//一般多圖上傳後需要將圖片進行切割
        if (picture.equals("")){//在這裡我進行了是否有圖片的判斷以免沒有圖片還進行佔位
          mGV.setVisibility(View.GONE);
        }
        for (int i = 0; i < split.length; i++) {
          list.add(split[i]);
        }
        if (adapter == null){
          adapter = new Adapter(MainActivity2.this,list);
          mGV.setAdapter(adapter);
        }

        mGV.setOnItemClickListerner(new NineGridlayout.OnItemClickListerner() {圖片點選事件
          @Override
          public void onItemClick(View view,int position) {
            Toast.makeText(getApplicationContext(),Toast.LENGTH_LONG).show();
          }
        });
      }

      @Override
      public void onFail(String string) {
        // Toast.makeText(MainActivity.this,string+"",Toast.LENGTH_SHORT).show();
      }
    });

  }


  private class Adapter extends NineGridAdapter {//介面卡

    public Adapter(Context context,List list){
      super(context,list);
    }

    @Override
    public int getCount() {
      return list == null?0:list.size();
    }

    @Override
    public String getUrl(int positon) {
      return getItem(positon) == null ? null : getItem(positon).toString();
    }

    @Override
    public Object getItem(int position) {
      return (list == null) ? null : list.get(position);
    }

    @Override
    public long getItemId(int position) {
      return position;
    }

    @Override
    public View getView(int i,View view) {

      ImageView imageView = new ImageView(getApplicationContext());
      ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT);

      imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
      imageView.setBackgroundColor(Color.parseColor("#f5f5f5"));
      imageView.setLayoutParams(lp);
      Glide.with(context).load(getUrl(i)).into(imageView);
      return imageView;
    }
  }
}

最後因為這個包含網路請求所以需要進行設定
在res下建立xml資料夾建立network_security_config.xml

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
  <base-config cleartextTrafficPermitted="true" />
</network-security-config>

放到

並且新增網路許可權

<uses-permission android:name="android.permission.INTERNET" />

網路請求請看以往部落格 多圖上傳請看以往部落格或者我上傳的程式碼,後續我會將全部整合上傳demo
感謝觀看

到此這篇關於Android 多圖上傳後將圖片進行九宮格展示的文章就介紹到這了,更多相關Android 多圖展示九宮格內容請搜尋我們以前的文章或繼續瀏覽下面的相關文章希望大家以後多多支援我們！