Question

当我从图库中选择图像并将其设置为ImageView时，它正在工作。但是当我单击按钮以上传此图像时，进度对话框不会关闭，图像也不会上传到存储中。

显示权限

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

依赖项Build.gradle（Module：app）

依赖性{

implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'com.firebaseui:firebase-ui-database:3.1.0'
implementation 'com.google.firebase:firebase-database:16.0.1'
implementation 'com.google.firebase:firebase-storage:16.0.1'
impleme;ntation 'com.google.firebase:firebase-auth:16.0.2'
testImplementation 'junit:junit:4.12'}

依赖项Build.gradle（项目）

dependencies {

    classpath 'com.android.tools.build:gradle:3.1.2'
    classpath 'com.google.gms:google-services:4.0.0'

}

Firebase存储规则的图像

enter image description here

Add_post.java

公共类Add_Post扩展了AppCompatActivity {

private EditText edt_title,edt_descripion;
private ImageView img;
private final int GALLERY_INTENT = 1;
private StorageReference reference;
private Uri uri;
private ProgressDialog pd;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_add__post);

    reference = FirebaseStorage.getInstance().getReference();
    edt_descripion = (EditText) findViewById(R.id.edt_despost);
    edt_title = (EditText) findViewById(R.id.edt_titlepost);
    img = (ImageView) findViewById(R.id.img_post);
    pd = new ProgressDialog(this);
    img.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
            intent.setType("image/*");
            startActivityForResult(intent,GALLERY_INTENT);
        }
    });

}


@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.addposts_menu,menu);
    return super.onCreateOptionsMenu(menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    if(item.getItemId() == R.id.action_submit){

        progress_submit();

    }
    return super.onOptionsItemSelected(item);
}

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

    if(requestCode == GALLERY_INTENT && resultCode == RESULT_OK){
        uri  = data.getData();
        try {
            Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), uri);
            img.setImageBitmap(bitmap);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

private void progress_submit() {
    String title = edt_title.getText().toString();
    String description = edt_descripion.getText().toString();

    pd.setMessage("Uploading...");
    pd.setCancelable(false);
    pd.show();

    if(TextUtils.isEmpty(title)  && TextUtils.isEmpty(description) && uri!=null) {
        StorageReference filepath = reference.child("images/"+ UUID.randomUUID().toString());
        filepath.putFile(uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                Toast.makeText(Add_Post.this, "Uploaded", Toast.LENGTH_SHORT).show();
                pd.dismiss();
            }
        });
    }

}

}

Answer 1

要将图像上传到Firebase存储，请将android服务添加到manifest.xml 下面是添加的示例android服务：-

<service
       android:name=".service.ImageUploadService"
       android:exported="false" />

演示和源代码由Firebase在此处提供： https://github.com/firebase/quickstart-android/tree/master/storage

Answer 2

这是一个逻辑错误，因为您仅在检查标题和描述为空时才上传图像。因此，请按以下步骤更改您的代码-

if(!TextUtils.isEmpty(title)  && !TextUtils.isEmpty(description) && uri!=null) {
    StorageReference filepath = reference.child("images/"+ UUID.randomUUID().toString());
    filepath.putFile(uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
        @Override
        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
            Toast.makeText(Add_Post.this, "Uploaded", Toast.LENGTH_SHORT).show();
            pd.dismiss();
        }
    });
}

无法将图像上传到Firebase存储

2 个答案: