不多說(shuō)上代碼

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, attrs, 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; } //初始化布局形狀 generateChildrenLayout(adapter.getCount()); //這里做一個(gè)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 { //以前添加過(guò)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() {@Overridepublic 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(jù)圖片個(gè)數(shù)確定行列數(shù)量 * 對(duì)應(yīng)關(guān)系如下 * numrowcolumn * 1 11 * 2 12 * 3 13 * 4 22 * 5 23 * 6 23 * 7 33 * 8 33 * 9 33 * * @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(méi)有接口可以用這個(gè)簡(jiǎn)單代替這個(gè)就不需要進(jìn)行切割了 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main2); init();//（有接口的情況） list.add(imageUrl);//沒(méi)有接口的情況 ---==================== 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(méi)有接口的情況 ---====================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(',');//一般多圖上傳后需要將圖片進(jìn)行切割if (picture.equals('')){//在這里我進(jìn)行了是否有圖片的判斷以免沒(méi)有圖片還進(jìn)行占位 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(diǎn)擊事件 @Override public void onItemClick(View view, int position) { Toast.makeText(getApplicationContext(), String.valueOf(position),Toast.LENGTH_LONG).show(); }}); } @Override public void onFail(String string) {// Toast.makeText(MainActivity.this, string+'', Toast.LENGTH_SHORT).show(); } }); } private class Adapter extends NineGridAdapter {//適配器 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; } }}

最后因?yàn)檫@個(gè)包含網(wǎng)絡(luò)請(qǐng)求所以需要進(jìn)行設(shè)置在res下創(chuàng)建xml文件夾創(chuàng)建network_security_config.xml

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

放到

并且添加網(wǎng)絡(luò)權(quán)限

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

網(wǎng)路請(qǐng)求請(qǐng)看以往博客 多圖上傳請(qǐng)看以往博客或者我上傳的代碼,后續(xù)我會(huì)將全部整合上傳demo感謝觀看

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