Firebaseアップロード

プログラミングの新機能。私はギャラリーから画像を選択し、後で目的のためにそれらをfirebaseにアップロードしたいと思います。ギャラリーから画像を選択するオプションは機能していますが、データベースにアップロードされていません。Firebaseアップロード

package example.com.myapplication; 

import android.app.Activity; 
import android.content.Context; 
import android.content.Intent; 

import android.net.Uri; 
import android.provider.ContactsContract; 
import android.support.annotation.NonNull; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.ImageButton; 
import android.widget.Spinner; 
import android.widget.Toast; 


import com.google.android.gms.tasks.OnFailureListener; 
import com.google.android.gms.tasks.OnSuccessListener; 
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 java.io.File; 


public class Profile extends AppCompatActivity { 

private EditText t1,t2,t3,t4,t5; 
private Button b1; 
private static final int PICK_IMAGE_REQUEST = 234; 
private Spinner s1,s2,s3,s4,s5; 
ArrayAdapter<CharSequence> adapter; 
Context cntx; 





//Buttons 
private ImageButton pb1; 
// Context cntx; 
private Uri filePath; 
private StorageReference mStorageRef; 




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




    pb1 = (ImageButton)findViewById(R.id.pickimage); 

    pb1.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      Intent intent = new Intent(); 
      intent.setType("image/*"); 
      intent.setAction(Intent.ACTION_PICK); 
      startActivityForResult(Intent.createChooser(intent, "Select  Image"), PICK_IMAGE_REQUEST); 

     } 


    }); 




    b1 = (Button)findViewById(R.id.ProfSubmit); 
    b1.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 



      t1 = (EditText)findViewById(R.id.FirstNameField); 
      t2 = (EditText)findViewById(R.id.LastNameField); 
      t3 = (EditText)findViewById(R.id.AgeField); 
      t4 = (EditText)findViewById(R.id.WL1); 
      t5 = (EditText)findViewById(R.id.WL2); 

      s1 = (Spinner)findViewById(R.id.spinner); 
      s2 = (Spinner)findViewById(R.id.spinner2); 
      s3 = (Spinner)findViewById(R.id.spinner3); 
      s4 = (Spinner)findViewById(R.id.spinner5); 
      s5 = (Spinner) findViewById(R.id.spinner5); 

      adapter = ArrayAdapter.createFromResource(Profile.this,R.array.craftmenu,android.R.layout.simple_spinner_item); 
      s1.setAdapter(adapter); 
      s2.setAdapter(adapter); 
      s3.setAdapter(adapter); 
      s4.setAdapter(adapter); 
      s5.setAdapter(adapter); 

      FirebaseDatabase User1 = FirebaseDatabase.getInstance(); 
      DatabaseReference Name = User1.getReference("Fname"); 
      DatabaseReference LName = User1.getReference("LName"); 
      DatabaseReference age = User1.getReference("age"); 
      DatabaseReference Work1 = User1.getReference("WorkLink1"); 
      DatabaseReference Work2 = User1.getReference("WorkLink2"); 
      final DatabaseReference Craft1 = User1.getReference("Craft1"); 
      final DatabaseReference Craft2 = User1.getReference("Craft2"); 
      final DatabaseReference Craft3 = User1.getReference("Craft3"); 
      final DatabaseReference Craft4 = User1.getReference("Craft4"); 
      final DatabaseReference Craft5 = User1.getReference("Craft5"); 
      mStorageRef = FirebaseStorage.getInstance().getReference(); 

      Uri filePath = Uri.fromFile(new File("images/*")); 
      StorageReference profimg = mStorageRef.("refimage"); 

      profimg.putFile(filePath).addOnCompleteListener(new OnSuccessListener<UploadTask.TaskSnapshot>(){ 
       @Override 
       public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) { 
        Uri filepath = taskSnapshot.getDownloadUrl(); 
       } 
      }) 
        .addOnFailureListener(new OnFailureListener() { 
         @Override 
         public void onFailure(@NonNull Exception e) { 
          Toast.makeText(cntx, "Upload Failed", Toast.LENGTH_SHORT).show(); 
         } 
        }); 




      Name.setValue(t1.getText().toString()); 
      LName.setValue(t2.getText().toString()); 
      age.setValue(t3.getText().toString()); 
      Work1.setValue(t4.getText().toString()); 
      Work2.setValue(t5.getText().toString()); 
      /* Craft1.setValue(s1.getOnItemSelectedListener().toString()); 
      Craft2.setValue(s2.getOnItemSelectedListener().toString()); 
      Craft3.setValue(s3.getOnItemSelectedListener().toString()); 
      Craft4.setValue(s4.getOnItemSelectedListener().toString()); 
      Craft5.setValue(s5.getOnItemSelectedListener().toString()); */ 
      s1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
       @Override 
       public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 
        Craft1.setValue(s1.getOnItemSelectedListener().toString()); 
       } 

       @Override 
       public void onNothingSelected(AdapterView<?> parent) { 
        Craft1.setValue(null); 

       } 
      }); 

      s2.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
       @Override 
       public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 
        Craft2.setValue(s2.getOnItemSelectedListener().toString()); 
       } 

       @Override 
       public void onNothingSelected(AdapterView<?> parent) { 
        Craft2.setValue(null); 

       } 
      }); 

      s3.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
       @Override 
       public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 
        Craft3.setValue(s3.getOnItemSelectedListener().toString()); 
       } 

       @Override 
       public void onNothingSelected(AdapterView<?> parent) { 
        Craft3.setValue(null); 

       } 
      }); 

      s4.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
       @Override 
       public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 
        Craft4.setValue(s4.getOnItemSelectedListener().toString()); 
       } 

       @Override 
       public void onNothingSelected(AdapterView<?> parent) { 
        Craft4.setValue(null); 

       } 
      }); 
      s5.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
       @Override 
       public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 
        Craft5.setValue(s5.getOnItemSelectedListener().toString()); 
       } 

       @Override 
       public void onNothingSelected(AdapterView<?> parent) { 
        Craft5.setValue(null); 

       } 
      }); 










      startActivity(new Intent(Profile.this, HomeScreen.class)); 
     } 
    }); 












// ... 
    } 
}

出典

2017-06-15 Sir Porthos

uはuが応答したURLリンクを取得するよりも、Firebase上のファイルをアップロードするたびに...画像 –

いただきましたエラーを表示したり、ダウンロードするには、そのリンクを使用しますか？上にアップロードコードを作業しているようです。 –

@AawazGyawaliエラーはこれです 06-15 14：20：34.403 1641-1641/example.com.myapplication E/UncaughtException：java.lang.IllegalArgumentException：uriはnullにはできません –

希望これは、あなたが望むなら、あなたは...あなたはtextviewsを取り出すことができる...とダウンロードURI plsはコメントので、私はあなたに戻って取得することができますことができます！

package org.stackanswer.*******8; 

import android.app.Notification; 
import android.app.ProgressDialog; 
import android.content.Intent; 
import android.net.Uri; 
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 com.google.android.gms.tasks.OnFailureListener; 
import com.google.android.gms.tasks.OnSuccessListener; 
import com.google.firebase.auth.FirebaseAuthException; 
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 java.net.URI; 

public class PostActivity4Home extends AppCompatActivity { 

private ImageButton mSelectImage; 

private EditText mPostTitle; 
private EditText mPostDesc; 
//if you have textviews 

private Button mSubmitBtn; 
private Uri mImageUri = null; 

private static final int GALLERY_REQUEST = 1; 

private StorageReference mStorage; 
private DatabaseReference mDatabase; 
private ProgressDialog mProgress; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_post_activity4_home); 

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

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

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

    mProgress = new ProgressDialog(this); 

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


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

} 

private void startPosting() { 

    mProgress.setMessage("Posting..."); 
    mProgress.show(); 

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

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

     StorageReference filepath = mStorage.child("HomePostImages").child(mImageUri.getLastPathSegment()); 
     filepath.putFile(mImageUri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() { 
      @Override 
      public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) { 
       Uri downloadUrl = taskSnapshot.getDownloadUrl(); 
       mProgress.dismiss(); 

       DatabaseReference newPost = mDatabase.push(); 
       newPost.child("Title").setValue(title_val); 
       newPost.child("Desc").setValue(desc_val); 
       newPost.child("Image").setValue(downloadUrl.toString()); 


       startActivity(new Intent(PostActivity4Home.this, MainActivity.class)); 
      } 
     }); 
    } 
} 

@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); 
}

}

出典

2017-06-15 19:45:07

答えて

関連する問題