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如何在imageview中显示php图像?

imageview image android php java

Tamal Dev · 技术社区 · 7 年前

我怎样才能下载那张照片并展示出来。

private ImageView iv;
private Bitmap bitmap;


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

    iv = (ImageView) findViewById(R.id.virus);
    bitmap = getBitmapFromURL("http://getbloodbd.org/image.php?no=4");
    iv.setImageBitmap(bitmap);}

public Bitmap getBitmapFromURL(String src) {
    try {
        URL url = new URL(src);
        HttpURLConnection connection = (HttpURLConnection) url
                .openConnection();
        connection.setDoInput(true);
        connection.connect();
        InputStream input = connection.getInputStream();
        Bitmap myBitmap = BitmapFactory.decodeStream(input);
        return myBitmap;

    } catch (Exception e) {
        // TODO: handle exception
        e.printStackTrace();
        return null;
    }
}

我的xml代码是

<ScrollView
    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"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="org.getbloodbd.getbloodbd.ShowprofileActivity"
    tools:showIn="@layout/app_bar_showprofile">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <ImageView
            android:id="@+id/virus"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_alignParentStart="true" />

    </RelativeLayout>

   <?php include 'config.php';header("Content-type: image/gif" );$no=$_GET['no']; $dn = mysql_query('select  image from images where no="'.$no.'"'); $dnn = mysql_fetch_array($dn); $data = $dnn['image'];echo base64_decode($data);?>

如何解决?

5 回复 | 直到 7 年前

Jaimin Prajapati 7 年前

无需为图像加载编写代码。

对毕加索的依赖是

compile 'com.squareup.picasso:picasso:2.5.2'

Picasso.with(context).load(your_image_url).into(imageView);

Pranav MS 7 年前

URL url = new URL("image full path");
Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
imageView.setImageBitmap(bmp);

加载图像的另一种方法

private Bitmap bmp;

   new AsyncTask<Void, Void, Void>() {                  
        @Override
        protected Void doInBackground(Void... params) {
            try {
                InputStream in = new URL(IMAGE_URL).openStream();
                bmp = BitmapFactory.decodeStream(in);
            } catch (Exception e) {
               // log error
            }
            return null;
        }

        @Override
        protected void onPostExecute(Void result) {
            if (bmp != null)
                imageView.setImageBitmap(bmp);
        }

   }.execute();

请 reference 请试一试

Mahesh Vayak 7 年前

Click Here .

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

Nguyá»n Trung Hiáº¿u 7 年前

您应该使用库滑动: https://github.com/bumptech/glide

进口

compile 'com.github.bumptech.glide:glide:4.1.1'
annotationProcessor 'com.github.bumptech.glide:compiler:4.1.1'

Glide.with(this).load("http://getbloodbd.org/image.php?no=4").into(iv);

或者,如果要获取位图:

Glide.with(this).asBitmap().load("http://getbloodbd.org/image.php?no=4").listener(new RequestListener<Bitmap>() {
        @Override
        public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Bitmap> target, boolean isFirstResource) {
            return false;
        }

        @Override
        public boolean onResourceReady(Bitmap resource, Object model, Target<Bitmap> target, DataSource dataSource, boolean isFirstResource) {
            iv.setImageBitmap(resource);
            return false;
        }
    });

Alireza 7 年前

你可以使用 Picasso 或 Glide 用于从服务器获取图像并加载到ImageView,有很多选项。

Picasso.with(context)
.load(url)
.centerCrop()
.placeholder(R.drawable.user_placeholder)
.error(R.drawable.user_placeholder_error)
.into(imageView);

滑动样品

GlideApp
.with(context)
.load(url)
.centerCrop()
.placeholder(R.drawable.loading_spinner)
.into(imageView);

别忘了在AndroidManifest中添加互联网权限。xml文件。

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