Developer Libraries » Trusted Intents

package info.guardianproject.trustedintents.example;

import android.app.Activity;

import android.content.ActivityNotFoundException;

import android.content.Intent;

import android.os.Bundle;

import android.support.design.widget.FloatingActionButton;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.Toolbar;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.widget.Toast;

import java.security.cert.CertificateException;

import info.guardianproject.GuardianProjectRSA1024;

import info.guardianproject.trustedintents.TrustedIntents;

public class MainActivity extends AppCompatActivity {

    private static TrustedIntents trustedIntents;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        trustedIntents = TrustedIntents.get(this);

        trustedIntents.addTrustedSigner(GuardianProjectRSA1024.class);

        setContentView(R.layout.activity_main);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);

        fab.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View view) {

                final Activity activity = MainActivity.this;

                try {

                    Intent intent = new Intent(Intent.ACTION_VIEW);

                    intent.setClassName("info.guardianproject.gpg",

                            "info.guardianproject.gpg.MainActivity");

                    trustedIntents.startActivity(activity, intent);

                } catch (ActivityNotFoundException e) {

                    e.printStackTrace();

                    Toast.makeText(activity, e.getLocalizedMessage(), Toast.LENGTH_LONG).show();

                } catch (CertificateException e) {

                    e.printStackTrace();

                    Toast.makeText(activity, e.getLocalizedMessage(), Toast.LENGTH_LONG).show();

                }

            }

        });

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.menu_main, menu);

        return true;

    }

    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

        // Handle action bar item clicks here. The action bar will

        // automatically handle clicks on the Home/Up button, so long

        // as you specify a parent activity in AndroidManifest.xml.

        int id = item.getItemId();

        //noinspection SimplifiableIfStatement

        if (id == R.id.action_settings) {

            return true;

        }

        return super.onOptionsItemSelected(item);

    }

}