在Firebase上上传多个图像-Android Studio [英] Upload Multiple Images on Firebase - Android Studio

问题描述

大家好，我试图在带字幕的Firebase上上传3张图片，但它仅成功上传了第一个图片，然后上传了图片2和3的字段，并在数据库上复制了图片1的下载网址.有人可以帮我解决这个问题，以便每个图像都有自己的下载网址

Hi guys im trying to upload 3 images on firebase with captions but it only uploads the first successfully then the field for image 2 and 3 it copies the download url for image 1 on the database. Can someone help me fix this so that each image to get its own download url

这是我的XML

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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"
    tools:context="ke.co.tapeli.tapeli.UploadActivity">

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:id="@+id/textView2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Image 1" />

            <ImageButton
                android:id="@+id/imageSelect"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:layout_centerHorizontal="true"
                android:adjustViewBounds="true"
                android:background="@android:color/white"
                android:scaleType="centerCrop"
                app:srcCompat="@drawable/add_btn" />

            <TextView
                android:id="@+id/textView4"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Image 2" />

            <ImageButton
                android:id="@+id/imageSelect1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:layout_centerHorizontal="true"
                android:adjustViewBounds="true"
                android:background="@android:color/white"
                android:scaleType="centerCrop"
                app:srcCompat="@drawable/add_btn" />

            <TextView
                android:id="@+id/textView5"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Image 3" />

            <ImageButton
                android:id="@+id/imageSelect2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:layout_centerHorizontal="true"
                android:adjustViewBounds="true"
                android:background="@android:color/white"
                android:scaleType="centerCrop"
                app:srcCompat="@drawable/add_btn" />

            <EditText
                android:id="@+id/titleField"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp"
                android:layout_marginTop="20dp"
                android:background="@drawable/input_outline"
                android:drawableLeft="@drawable/ic_con_name"
                android:ems="10"
                android:hint="Conman's Name"
                android:inputType="textPersonName"
                android:padding="7dp"
                android:singleLine="true"
                android:textSize="14sp" />

            <EditText
                android:id="@+id/descField"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp"
                android:layout_marginTop="10dp"
                android:background="@drawable/input_outline"
                android:drawableLeft="@drawable/ic_con_desc"
                android:ems="10"
                android:hint="Crime Description"
                android:inputType="textMultiLine"
                android:padding="7dp"
                android:textSize="14sp" />

            <EditText
                android:id="@+id/phoneField"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp"
                android:layout_marginTop="20dp"
                android:background="@drawable/input_outline"
                android:drawableLeft="@drawable/ic_con_phone"
                android:ems="10"
                android:hint="Conman's Number"
                android:inputType="textMultiLine"
                android:padding="7dp"
                android:textSize="14sp" />

            <EditText
                android:id="@+id/passField"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp"
                android:layout_marginTop="20dp"
                android:background="@drawable/input_outline"
                android:drawableLeft="@drawable/ic_con_pass"
                android:ems="10"
                android:hint="Conman's ID Number/ Passport "
                android:inputType="textMultiLine"
                android:padding="7dp"
                android:textSize="14sp" />

            <EditText
                android:id="@+id/otherField"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp"
                android:layout_marginTop="20dp"
                android:background="@drawable/input_outline"
                android:drawableLeft="@drawable/ic_con_info"
                android:ems="10"
                android:hint="Any other Information"
                android:inputType="textMultiLine"
                android:padding="7dp"
                android:textSize="14sp" />

            <EditText
                android:id="@+id/stepsField"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp"
                android:layout_marginTop="20dp"
                android:background="@drawable/input_outline"
                android:drawableLeft="@drawable/ic_con_steps"
                android:ems="10"
                android:hint="Steps Taken (Eg. Went to court)"
                android:inputType="textMultiLine"
                android:padding="7dp"
                android:textSize="14sp" />

            <EditText
                android:id="@+id/policeField"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp"
                android:layout_marginTop="20dp"
                android:background="@drawable/input_outline"
                android:drawableLeft="@drawable/ic_con_police"
                android:ems="10"
                android:hint="Police Station Reported To"
                android:inputType="textMultiLine"
                android:padding="7dp"
                android:textSize="14sp" />

            <Button
                android:id="@+id/submitBtn"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerHorizontal="true"
                android:layout_marginBottom="20dp"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:layout_marginTop="50dp"
                android:background="@color/colorPrimary"
                android:text="Report a Tapeli"
                android:textColor="@android:color/white" />

        </LinearLayout>

    </ScrollView>

</FrameLayout>

这是我的Java代码

package ke.co.tapeli.tapeli;

import android.app.FragmentTransaction;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.support.annotation.NonNull;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.Toast;

import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;

import ke.co.tapeli.tapeli.Auths.Login;

public class UploadActivity extends AppCompatActivity {

    private ImageButton mSelectImage;
    private ImageButton mSelectImage1;
    private ImageButton mSelectImage2;

    private EditText mPostTitle;
    private EditText mPostDesc;

    private EditText mPostNumber;
    private EditText mPostPass;
    private EditText mPostInfo;
    private EditText mPostSteps;
    private EditText mPostPolice;

    private Button mSubmitBtn;
    private Uri mImageUri = null;

    private Uri mImageUri1 = null;
    private Uri mImageUri2 = null;

    private StorageReference mStorage;
    private DatabaseReference mDatabase;

    private ProgressDialog mProgress;

    private static final int GALLERY_REQUEST = 1;
    private static final int GALLERY_REQUEST2 = 2;
    private static final int GALLERY_REQUEST3 = 3;


    private FirebaseAuth mAuth;
    private FirebaseAuth.AuthStateListener mAuthListner;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_upload);
        mAuth = FirebaseAuth.getInstance();
        mAuthListner = new FirebaseAuth.AuthStateListener() {
            @Override
            public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {

                if(firebaseAuth.getCurrentUser() == null){

                    Intent loginIntent = new Intent(UploadActivity.this, Login.class);
                    loginIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                    startActivity(loginIntent);

                }

            }
        };


        mStorage = FirebaseStorage.getInstance().getReference();
        mDatabase = FirebaseDatabase.getInstance().getReference().child("Matapeli");

        mSelectImage = (ImageButton) findViewById(R.id.imageSelect);
        mSelectImage1 = (ImageButton) findViewById(R.id.imageSelect1);
        mSelectImage2 = (ImageButton) findViewById(R.id.imageSelect2);
        mPostTitle = (EditText) findViewById(R.id.titleField);
        mPostDesc = (EditText) findViewById(R.id.descField);

        mPostNumber = (EditText) findViewById(R.id.phoneField);
        mPostPass = (EditText) findViewById(R.id.passField);
        mPostInfo = (EditText) findViewById(R.id.otherField);
        mPostSteps = (EditText) findViewById(R.id.stepsField);
        mPostPolice = (EditText) findViewById(R.id.policeField);

        mProgress = new ProgressDialog(this);

        mSubmitBtn = (Button) findViewById(R.id.submitBtn);

        mSelectImage.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
                galleryIntent.setType("image/*");
                galleryIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                startActivityForResult(galleryIntent, GALLERY_REQUEST);
            }
        });

        mSelectImage1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
                galleryIntent.setType("image/*");
                galleryIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                startActivityForResult(galleryIntent, GALLERY_REQUEST2);
            }
        });

        mSelectImage2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
                galleryIntent.setType("image/*");
                galleryIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                startActivityForResult(galleryIntent, GALLERY_REQUEST3);
            }
        });

        mSubmitBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                startPosting();
            }
        });
    }

    private void startPosting() {

        mProgress.setMessage("Adding a Tapeli...");


        final String title_val = mPostTitle.getText().toString().trim();
        final String desc_val = mPostDesc.getText().toString().trim();

        final String namba_val = mPostNumber.getText().toString().trim();
        final String pass_val = mPostPass.getText().toString().trim();
        final String info_val = mPostInfo.getText().toString().trim();
        final String steps_val = mPostSteps.getText().toString().trim();
        final String police_val = mPostPolice.getText().toString().trim();

        if(!TextUtils.isEmpty(title_val) && !TextUtils.isEmpty(desc_val) && mImageUri !=null){

            mProgress.show();

            StorageReference filepath = mStorage.child("Blog_Images").child(mImageUri.getLastPathSegment());
            StorageReference filepath1 = mStorage.child("Blog_Images").child(mImageUri1.getLastPathSegment());
            StorageReference filepath2 = mStorage.child("Blog_Images").child(mImageUri2.getLastPathSegment());

            filepath.putFile(mImageUri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {

                @Override
                public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

                    Uri downloadurl = taskSnapshot.getDownloadUrl();

                    DatabaseReference newPost = mDatabase.push();
                    newPost.child("title").setValue(title_val);
                    newPost.child("desc").setValue(desc_val);

                    newPost.child("number").setValue(namba_val);
                    newPost.child("passport").setValue(pass_val);
                    newPost.child("info").setValue(info_val);
                    newPost.child("steps").setValue(steps_val);
                    newPost.child("police").setValue(police_val);

                    newPost.child("image").setValue(downloadurl.toString());
                    newPost.child("image1").setValue(downloadurl.toString());
                    newPost.child("image2").setValue(downloadurl.toString());


                    mProgress.dismiss();

                    finish();



                }
            });

        }

    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if(requestCode == GALLERY_REQUEST && resultCode == RESULT_OK){

            mImageUri = data.getData();


            mSelectImage.setImageURI(mImageUri);

        }

        if(requestCode == GALLERY_REQUEST2 && resultCode == RESULT_OK){


            mImageUri1 = data.getData();


            mSelectImage1.setImageURI(mImageUri1);

        }

        if(requestCode == GALLERY_REQUEST3 && resultCode == RESULT_OK){



            mImageUri2 = data.getData();

            mSelectImage2.setImageURI(mImageUri2);
        }
    }
}

推荐答案

这是因为您只在第一个图像上调用putFile().这意味着第一张图片将是唯一上传的图片.您还需要在其他图像上调用putFile():

That's because you're only calling putFile() with the first image. Which means the first image will be the only one uploaded. You need to call putFile() on the other images as well:

    StorageReference filepath = mStorage.child("Blog_Images").child(mImageUri.getLastPathSegment());
    StorageReference filepath1 = mStorage.child("Blog_Images").child(mImageUri1.getLastPathSegment());
    StorageReference filepath2 = mStorage.child("Blog_Images").child(mImageUri2.getLastPathSegment());
    final DatabaseReference newPost = mDatabase.push();

    filepath.putFile(mImageUri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {

        @Override
        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

            Uri downloadurl = taskSnapshot.getDownloadUrl();
            newPost.child("title").setValue(title_val);
            newPost.child("desc").setValue(desc_val);
            newPost.child("number").setValue(namba_val);
            newPost.child("passport").setValue(pass_val);
            newPost.child("info").setValue(info_val);
            newPost.child("steps").setValue(steps_val);
            newPost.child("police").setValue(police_val);
            newPost.child("image").setValue(downloadurl.toString());
        }
    });
    filepath1.putFile(mImageUri1).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {

        @Override
        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
            Uri downloadurl = taskSnapshot.getDownloadUrl();
            newPost.child("image1").setValue(downloadurl.toString());
        }
    });
    filepath2.putFile(mImageUri2).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {

        @Override
        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

            Uri downloadurl = taskSnapshot.getDownloadUrl();
            newPost.child("image2").setValue(downloadurl.toString());
            mProgress.dismiss();
            finish();
        }
    });

这篇关于在Firebase上上传多个图像-Android Studio的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！