Retrofit is a type-safe REST client for Android developed by Square. The library provides a powerful framework for authenticating and interacting with APIs and sending network requests with OkHttp
Integrate Retrofit in Android follow Below steps:
1) Add dependencies in build.gradle file
compile 'com.squareup.retrofit2:retrofit:2.0.2'
compile 'com.squareup.retrofit2:converter-gson:2.0.2'
compile 'com.squareup.retrofit2:converter-scalars:2.1.0'
2) Create Interface which will have all the api callspublic interface DataCall{ //Get Method Call @GET("Pass your api path) //ex: "register.php" Call<String>getDataGet(@Query("name") String name);//Post Method Call@FormUrlEncoded @POST("index.php") Call<String>getDataPost(@Field("name")String name);//Post Method Call with Query annotation@POST("index.php") Call<String>getDataPostQuery(@Query("name")String name); //Post Method Call with HashMap request
@POST("index.php")
Call<String>getDataPostQueryMap(@QueryMap HashMap<String,String> map);
//Post Method Call with Json request
@POST("index.php")
Call<String>getDataPostQueryJson(@Body RequestBody name);
}
3) Create Retrofit object and call api methods.
Retrofit retrofit = new Retrofit.Builder().baseUrl("pass here your base url,shoul end with /") .addConverterFactory(ScalarsConverterFactory.create()).build();//ScalarsConverterFactory.create() is for String response handling//GsonConverterFactory.create() is used for automatically will parse the//response with proper bean classesDataCall datacall = retrofit.create(DataCall.class);
//Get Method call
Call<String> call = datacall.getDataGet("GET name");call.enqueue(new Callback<String>() { @Override public void onResponse(Call<String> call,Response<String> response) { System.out.println("Response data :"+response.body()); } @Override public void onFailure(Call<String> call, Throwable t) { System.out.println("Response data :"+t.getMessage()); } });//Post Method callcall = datacall.getDataPost("POST name"); call.enqueue(new Callback<String>() { @Override public void onResponse(Call<String> call,Response<String> response) { System.out.println("Response data :"+response.body()); } @Override public void onFailure(Call<String> call, Throwable t) { System.out.println("Response data :"+t.getMessage()); } });//Post Method callcall = datacall.getDataPostQuery("POST Query"); call.enqueue(new Callback<String>() { @Override public void onResponse(Call<String> call,Response<String> response) { System.out.println("Response data :"+response.body()); } @Override public void onFailure(Call<String> call, Throwable t) { System.out.println("Response data :"+t.getMessage()); } });//Post Method call with Hash map requestHashMap<String,String>map=new HashMap(); JSONObject ob2=null; // JSONObject map=new JSONObject(); try { map.put("name1", "Map name"); map.put("password1", "Map password"); ob2=new JSONObject(map); }catch (Exception e) { e.printStackTrace();; } RequestBody body = RequestBody.create(okhttp3.MediaType.parse("application/json; charset=utf-8"),ob2.toString()); call = datacall.getDataPostQueryJson(body); call.enqueue(new Callback<String>() { @Override public void onResponse(Call<String> call,Response<String> response) { System.out.println("Response data :"+response.body()); } @Override public void onFailure(Call<String> call, Throwable t) { System.out.println("Response data :"+t.getMessage()); } });
//Post Method call with JSon Request
JSONObject map=new JSONObject();
try {
map.put("name1", "Map name");
map.put("password1", "Map password");
}catch (Exception e)
{
e.printStackTrace();;
}
RequestBody body = RequestBody.
create(okhttp3.MediaType.parse("application/json; charset=utf-8"),map.toString());
call = datacall.getDataPostQueryJson(body);
call.enqueue(new Callback<String>() {
@Override public void onResponse(Call<String> call,
Response<String> response) {
System.out.println("Response data :"+response.body());
}
@Override public void onFailure(Call<String> call, Throwable t) {
System.out.println("Response data :"+t.getMessage());
}
});
