Android Open Source - vk-android-sdk Api Call Activity

From Project

Back to project page vk-android-sdk.
License

The source code is released under:
MIT License
If you think the Android project vk-android-sdk listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.vk.vktestapp;
//from   w  w w.jav  a  2  s . c om
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.vk.sdk.VKSdk;
import com.vk.sdk.VKUIHelper;
import com.vk.sdk.api.VKError;
import com.vk.sdk.api.VKRequest;
import com.vk.sdk.api.VKRequest.VKRequestListener;
import com.vk.sdk.api.VKResponse;

public class ApiCallActivity extends ActionBarActivity {

    private VKRequest myRequest;

    private static final String FRAGMENT_TAG = "response_view";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_api_call);

        if (getSupportActionBar() != null) getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, new PlaceholderFragment(), FRAGMENT_TAG)
                    .commit();
        }

        processRequestIfRequired();
    }
    private PlaceholderFragment getFragment() {
        return (PlaceholderFragment) getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG);
    }
    private void processRequestIfRequired() {
        VKRequest request = null;

        if (getIntent() != null && getIntent().getExtras() != null && getIntent().hasExtra("request")) {
            long requestId = getIntent().getExtras().getLong("request");
            request = VKRequest.getRegisteredRequest(requestId);
            if (request != null)
                request.unregisterObject();
        }

        if (request == null) return;
        myRequest = request;
        request.executeWithListener(mRequestListener);
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putCharSequence("response", getFragment().textView.getText());
        if (myRequest != null) {
            outState.putLong("request", myRequest.registerObject());
        }
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        CharSequence response = savedInstanceState.getCharSequence("response");
        if (response != null) {
            getFragment().textView.setText(response);
        }

        long requestId = savedInstanceState.getLong("request");
        myRequest = VKRequest.getRegisteredRequest(requestId);
        if (myRequest != null) {
            myRequest.unregisterObject();
            myRequest.setRequestListener(mRequestListener);
        }
    }
  protected void setResponseText(String text) {
    PlaceholderFragment fragment = getFragment();
    if (fragment != null && fragment.textView != null) {
      fragment.textView.setText(text);
    }
  }


  VKRequestListener mRequestListener = new VKRequestListener()
  {
    @Override
    public void onComplete(VKResponse response)
    {
      setResponseText(response.json.toString());
    }

    @Override
    public void onError(VKError error)
    {
      setResponseText(error.toString());
    }

    @Override
    public void onProgress(VKRequest.VKProgressType progressType, long bytesLoaded,
                           long bytesTotal)
    {
      // you can show progress of the request if you want
    }

    @Override
    public void attemptFailed(VKRequest request, int attemptNumber, int totalAttempts)
    {
      getFragment().textView.append(
          String.format("Attempt %d/%d failed\n", attemptNumber, totalAttempts));
    }
  };

  @Override
  protected void onResume()
  {
    super.onResume();
    VKUIHelper.onResume(this);
  }

  @Override
  protected void onDestroy()
  {
    super.onDestroy();
    VKUIHelper.onDestroy(this);
    myRequest.cancel();
    Log.d(VKSdk.SDK_TAG, "On destroy");
  }

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

  @Override
  public boolean onOptionsItemSelected(MenuItem item)
  {
    int id = item.getItemId();

    if (id == android.R.id.home)
    {
      finish();
      return true;
    }

    return super.onOptionsItemSelected(item);
  }

  /**
   * A placeholder fragment containing a simple view.
   */
  public static class PlaceholderFragment extends Fragment
  {
    public TextView textView;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState)
    {
      View v = inflater.inflate(R.layout.fragment_api_call, container, false);
      textView = (TextView) v.findViewById(R.id.response);
      return v;
    }
  }
}
Java Source Code List
