DownZLibrary

项目地址:100rabhkr/DownZLibrary
简介:DownZ is a Http Library that makes networking for Android apps easier and faster
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DownZ is an HTTP library that boosts networking in Android apps and makes it significantly easier and faster.

downz logo

DownZ offers the following benefits:

  • Handles HTTP requests.
  • Transparent memory response caching of JSON and Images with support for request prioritization.
  • Cancel a request of image upload or download at any given time.
  • Images in memory cache are auto removed if not used for a long time.
  • Ease of customization, for example, cancel request and clear cache.
  • Strong requisition that makes it easy to effectively manage UI with data being fetched asynchronously from the network.

DownZ excels at handling HTTP requests.It comes with built-in support for images, JSON and Xml. By providing built-in support for the features you require, DownZ frees you from writing tons of code and finally allows you to concentrate on the logic that is specific to your app.


Download

You can use Gradle

Step 1. Add the JitPack repository to your build file , Add it in your root build.gradle at the end of repositories:

allprojects {
    repositories {
        ...
        maven { url 'https://jitpack.io' }
    }
}

Step 2. Add the dependency

dependencies {
        compile 'com.github.100rabhkr:DownZLibrary:1.1'
}

Or Maven:

Step 1. Add the JitPack repository to your build file

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>

Step 2. Add the dependency

<dependency>
    <groupId>com.github.100rabhkr</groupId>
    <artifactId>DownZLibrary</artifactId>
    <version>1.1</version>
</dependency>

Or Sbt:

Step 1. Add the JitPack repository to your build file Add it in your build.sbt at the end of resolvers:

    resolvers += "jitpack" at "https://jitpack.io"

Step 2. Add the dependency

    libraryDependencies += "com.github.100rabhkr" % "DownZLibrary" % "1.1"

Snapshots from Sample App


Download Sample App

All the source code can be downloaded from Github's Release page

You can also download the sample app from here

How do I use DownZ?

Make Standard Request

…
 DownZ
            .from(mContext) //context 
            .load(DownZ.Method.GET, “http://yoururl.com”)
            .asBitmap()     //asJsonArray() or asJsonObject() or asXml() can be used depending on need
            .setCallback(new HttpListener<Bitmap>() {
                @Override
                public void onRequest() {

                    //On Beginning of request

                }

                @Override
                public void onResponse(Bitmap data) {

                    if(data != null){

                        // do something

                    }
                }

                @Override
                public void onError() {

                    //do something when there is an error

                }

                @Override
                public void onCancel() {

                    //do something when request cancelled

                }
            });

Pass Header or Request Parameters (Optional)

    ...
DownZ
            .from(MainActivity.this)
            .load(DownZ.Method.GET,mUrl)
            .setHeaderParameter("key","value")
            .setRequestParameter("key1","value1")
            .setRequestParameter("key2","value2")
            .asBitmap()
            .setCallback(new HttpListener<Bitmap>() {
                @Override
                public void onRequest() {

                }

                @Override
                public void onResponse(Bitmap bitmap) {
                    if(bitmap != null){

                        //do something
                    }
                }

                @Override
                public void onError() {

                }

                @Override
                public void onCancel() {

                }
            });

Enable Cache

...
public class SomeActivity extends AppCompatActivity {
    ...
    CacheManager<JSONArray> cacheManager; // we can use JSONObject, Bitmap as generic type
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        ...
        cacheManager=new CacheManager<>(40*1024*1024); // 40mb
    }

public void OnRequestMade(View v){
        DownZ
            .from(this)
            .load(DownZ.Method.GET, "http://www.url.com")
            .asJsonArray()
            .setCacheManager(cacheManager)
            .setCallback(new HttpListener<JSONArray>() {
                @Override
                public void onRequest() {
                    //fired when request begins
                }

                @Override
                public void onResponse(JSONArray data) {
                    if(data!=null){
                        // do some stuff here
                    }
                }

                @Override
                public void onError() {

                }

                @Override
                public void onCancel() {

                }
            });
}
}

Load Image into ImageView

...
public class SomeActivity extends AppCompatActivity {
    ...
    CacheManager<Bitmap> cacheManager; 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        ...
        cacheManager=new CacheManager<>(40*1024*1024); // 40mb
        imageview = (ImageView) findViewById(R.id.image_profile);
        imageview.setDrawingCacheEnabled(true); //can be used if Image has to be shared afterwards
        imageview.buildDrawingCache();
        ...

    }
//event to make request
public void btnLoadImageClicked(View v){
    DownZ
            .from(this)
            .load(DownZ.Method.GET, "http://www.url.com/image.jpg")
            .asBitmap()
            .setCacheManager(cacheManager)
            .setCallback(new HttpListener<Bitmap>() {
                @Override
                public void onRequest() {
                    //fired when request begin


 }

                @Override
                public void onResponse(Bitmap data) {
                    if(data!=null){
                        // do some stuff here
                        imageview.setImageBitmap(data);
                    }
                }

                @Override
                public void onError() {

                }

                @Override
                public void onCancel() {

                }
            });
}

}

Removing from Cache

 ...
 public class SomeActivity extends AppCompatActivity {
    ...
    CacheManager<Bitmap> cacheManager; 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        ...
        String mUrl = "http://yoururl.com/image.png";
        cacheManager=new CacheManager<>(40*1024*1024); // 40mb
        imageview = (ImageView) findViewById(R.id.image_profile);
        imageview.setDrawingCacheEnabled(true); //can be used if Image has to be shared afterwards
        imageview.buildDrawingCache();
        ...

    }
//event to clear item from cache
public void btntoClearCache(View v){

       cacheManager.removeDataFromCache(mUrl);
}
}

Getting Help

To report a specific problem or feature request in DownZ, you can open a new issue on Github. For questions, suggestions, or even to say 'hi', just drop an email at skkumar.sk94@gmail.com

Contributing

If you like DownZ, please contribute by writing at skkumar.sk94@gmail.com. Your help and support would make DownZ even better. Before submitting pull requests, contributors must sign Google's individual contributor license agreement.

Author

Saurabh Kumar - @100rabhkr on GitHub, @NotSaurabhKumar on Twitter

License

MIT See the LICENSE file for details.

Disclaimer

This is not an official Google product.

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