Android 多圖上傳伺服器_At_Swim
阿新 • • 發佈：2019-01-09
圖片我就不上傳了沒有好的圖片
MainActivity，佈局
<?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:orientation="vertical" android:gravity="center" tools:context="com.example.lenovo.duotupian_demo.MainActivity"> <Button android:id="@+id/btnAddPhoto" android:layout_width="match_parent" android:layout_height="wrap_content"android:text="上傳圖片"/>
</LinearLayout>
監聽
public class MainActivity extends AppCompatActivity implements View.OnClickListener { private Button btnAddPhoto; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); } private void initView() { btnAddPhoto = (Button) findViewById(R.id.btnAddPhoto); btnAddPhoto.setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.btnAddPhoto: startActivity(new Intent(MainActivity.this,UploadPhotoActivity.class)); break; } }
}
UploadPhotoActivity,佈局
<?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:orientation="vertical" android:gravity="center" tools:context="com.example.lenovo.duotupian_demo.UploadPhotoActivity"> <GridView android:id="@+id/mGradView" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:numColumns="3"/> <Button android:id="@+id/btnOk" android:layout_width="200dp" android:layout_height="wrap_content" android:layout_margin="10dp" android:background="@color/colorAccent" android:text="選擇圖片" android:textColor="@android:color/white"/> </LinearLayout>
UploadPhotoActivity
package com.example.lenovo.duotupian_demo; import android.content.ContentResolver; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.Button; import android.widget.GridView; import android.widget.Toast; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.concurrent.TimeUnit; import okhttp3.MediaType; import okhttp3.MultipartBody; import okhttp3.OkHttpClient; import okhttp3.RequestBody; import okhttp3.ResponseBody; import retrofit2.Retrofit; public class UploadPhotoActivity extends AppCompatActivity implements View.OnClickListener { private GridView mGradView; private Button btnOk; private List<PhotoBean> mList; private GridAdapter adapter; private List<String> mListPath = new ArrayList<String>(); private File file; private int count; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_upload_photo); initView(); initData(); initAdapter(); } private void initAdapter() { adapter = new GridAdapter(this, mList); mGradView.setAdapter(adapter); initListener(); } private void initListener() { mGradView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { count = 0; mListPath.clear(); PhotoBean bean = mList.get(position); bean.setSelect(!bean.isSelect()); //便利每個圖片 for (PhotoBean p : mList) { if (p.isSelect()) { count++; // 點選的圖片新增到集合 mListPath.add(p.getPath()); } } //只能新增9張圖片 if(count <= 9){ //重新整理介面卡 adapter.notifyDataSetChanged(); btnOk.setText(count + "/ 9 完成"); }else{ Toast.makeText(UploadPhotoActivity.this, "不能點了", Toast.LENGTH_SHORT).show(); } } }); } private void initView() { mGradView = (GridView) findViewById(R.id.mGradView); btnOk = (Button) findViewById(R.id.btnOk); btnOk.setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.btnOk: uploadFile(); finish(); break; } } private void uploadFile() { //OkHttp的依賴 // implementation 'com.squareup.okhttp3:okhttp:3.2.0' OkHttpClient client=new OkHttpClient.Builder().connectTimeout(15, TimeUnit.SECONDS) .readTimeout(15,TimeUnit.SECONDS) .build(); // Retrofit2.0的依賴 // compile 'com.squareup.retrofit2:retrofit:2.3.0' // compile 'com.squareup.retrofit2:converter-gson:2.3.0' Retrofit build = new Retrofit.Builder() //伺服器路徑 .baseUrl("伺服器路徑") .client(client) .build(); APIService apiServices = build.create(APIService.class); //迴圈上傳圖片 for (int i = 0; i < mListPath.size(); i++) { //圖片路徑 新增到 檔案裡 file = new File(mListPath.get(i)); RequestBody requestBody = RequestBody.create(MediaType.parse("multipart/form-data"), file); MultipartBody.Part part = MultipartBody.Part.createFormData("file", System.currentTimeMillis() + ".png", requestBody); retrofit2.Call<ResponseBody> responseBodyCall = apiServices.postFileUpload(part); responseBodyCall.enqueue(new retrofit2.Callback<ResponseBody>() { @Override public void onResponse(retrofit2.Call<ResponseBody> call, retrofit2.Response<ResponseBody> response) { try { String string = response.body().string(); if(string != null){ Log.e("TAG", "onResponse: 有資料"); }else{ Log.e("TAG", "onResponse: 沒有資料"); } } catch (IOException e) { e.printStackTrace(); } } @Override public void onFailure(retrofit2.Call<ResponseBody> call, Throwable t) { } }); } } private void initData() { mList = new ArrayList<>(); //獲取手機相簿圖片 ContentResolver mContentResolver = getContentResolver(); //圖片資料的Uri(外部儲存) Uri uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; //查詢 Cursor cursor = mContentResolver.query(uri,null,null,null,null); //遍歷圖片 while (cursor.moveToNext()){ PhotoBean bean = new PhotoBean(); //獲取圖片路徑 String path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA)); //設定圖片路徑 bean.setPath(path); //預設fasle bean.setSelect(false); //新增圖片 mList.add(bean); } } }
GridView介面卡
package com.example.lenovo.duotupian_demo; import android.content.Context; import android.graphics.Bitmap; import android.os.AsyncTask; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import java.util.List; public class GridAdapter extends BaseAdapter { //資料 private List<PhotoBean> mList; //佈局載入器 private LayoutInflater mInflater; //實體類 private PhotoBean bean; //上下文 private Context mContext; //螢幕寬高 private int w, h; public GridAdapter(Context mContext, List<PhotoBean> mList) { this.mContext = mContext; this.mList = mList; mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); getPhoneWH(); } private void getPhoneWH() { //獲取手機螢幕高度 w = mContext.getResources().getDisplayMetrics().widthPixels; h = mContext.getResources().getDisplayMetrics().heightPixels; } @Override public int getCount() { return mList.size(); } @Override public Object getItem(int i) { return mList.get(i); } @Override public long getItemId(int i) { return i; } @Override public View getView(int i, View view, ViewGroup viewGroup) { ViewHolder viewHolder = null; if (view == null) { viewHolder = new ViewHolder(); view = mInflater.inflate(R.layout.list_item, null); viewHolder.img = (ImageView) view.findViewById(R.id.img); //設定圖片最小寬高 viewHolder.img.setMinimumWidth(w / 3); viewHolder.img.setMinimumHeight(h / 3); viewHolder.img_select = (ImageView) view.findViewById(R.id.img_select); view.setTag(viewHolder); } else { viewHolder = (ViewHolder) view.getTag(); } //獲取position bean = mList.get(i); //是否選中 if (bean.isSelect()) { viewHolder.img_select.setVisibility(View.VISIBLE); } else { viewHolder.img_select.setVisibility(View.INVISIBLE); } //是否有圖片 if (bean.getBitmap() == null) { //圖片載入，非同步載入 new ImgTask().execute(bean.getPath(), String.valueOf(i)); } else { //設定圖片 viewHolder.img.setImageBitmap(bean.getBitmap()); } return view; } static class ViewHolder { private ImageView img; private ImageView img_select; } private class ImgTask extends AsyncTask<String, Void, Bitmap> { @Override protected Bitmap doInBackground(String... strings) { //圖片路徑 String path = strings[0]; //position int position = Integer.parseInt(strings[1]); //圖片壓縮 Bitmap bitmap = BitmapUtils.getScaleBitmapPath(mContext, path); //設定圖片 mList.get(position).setBitmap(bitmap); return bitmap; } //重新整理檢視 @Override protected void onPostExecute(Bitmap bitmap) { super.onPostExecute(bitmap); //重新整理 GridAdapter.this.notifyDataSetChanged(); } } }
list_item 佈局
<?xml version="1.0" encoding="utf-8"?> <LinearLayout android:orientation="vertical" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="100dp"> <FrameLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <ImageView android:id="@+id/img" android:src="@mipmap/ic_launcher" android:layout_width="wrap_content" android:layout_height="120dp" android:scaleType="fitXY"/> <ImageView android:id="@+id/img_select" android:src="@mipmap/personal_check_img" android:visibility="invisible" android:layout_gravity="right" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </FrameLayout> </LinearLayout>
BitmapUtils 工具
package com.example.lenovo.duotupian_demo; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; public class BitmapUtils { /** * 本地圖片壓縮處理 * * @param mContext 上下文 * @param path 路徑 * @return */ public static Bitmap getScaleBitmapPath(Context mContext, String path) { Bitmap bitmap; int w; BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true; bitmap = BitmapFactory.decodeFile(path, options); w = options.outWidth; if (w < 50) { options.inSampleSize = w / 50; options.inJustDecodeBounds = false; bitmap = BitmapFactory.decodeFile(path, options); } else { bitmap = BitmapFactory.decodeFile(path); } return bitmap; } }
PhotoBean實體類
package com.example.lenovo.duotupian_demo; import android.graphics.Bitmap; public class PhotoBean { private String path; private boolean isSelect; private Bitmap bitmap; public String getPath() { return path; } public void setPath(String path) { this.path = path; } public boolean isSelect() { return isSelect; } public void setSelect(boolean select) { isSelect = select; } public Bitmap getBitmap() { return bitmap; } public void setBitmap(Bitmap bitmap) { this.bitmap = bitmap; } }
APIService
public interface APIService { @POST("UploadDemo4/UploadFile") @Multipart Call<ResponseBody> postFileUpload(@Part MultipartBody.Part part); }