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beeender/MainActivity.java

Created December 28, 2015 07:06
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  1. beeender created this gist Dec 28, 2015.
    116 changes: 116 additions & 0 deletions MainActivity.java
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,116 @@
    package apptest.realm.io.androidmtest;

    import android.Manifest;
    import android.content.pm.PackageManager;
    import android.os.Bundle;
    import android.os.Environment;
    import android.support.design.widget.FloatingActionButton;
    import android.support.design.widget.Snackbar;
    import android.support.v4.app.ActivityCompat;
    import android.support.v4.content.ContextCompat;
    import android.support.v7.app.AppCompatActivity;
    import android.support.v7.widget.Toolbar;
    import android.util.Log;
    import android.view.View;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.widget.Toast;

    import java.io.File;

    import io.realm.Realm;
    import io.realm.RealmConfiguration;

    public class MainActivity extends AppCompatActivity {
    RealmConfiguration myConfig;
    Realm realm;
    final private int REQUEST_WRITE_STORAGE = 100;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    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) {
    Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
    .setAction("Action", null).show();
    }
    });

    boolean hasPermission = (ContextCompat.checkSelfPermission(this,
    Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED);
    if (!hasPermission) {
    ActivityCompat.requestPermissions(this,
    new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
    REQUEST_WRITE_STORAGE);
    } else {
    openRealm();
    }
    }

    @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);
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    switch (requestCode) {
    case REQUEST_WRITE_STORAGE:
    // If request is cancelled, the result arrays are empty.
    if (grantResults.length > 0
    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

    // permission was granted, yay! Do the
    // contacts-related task you need to do.
    openRealm();
    } else {

    // permission denied, boo! Disable the
    // functionality that depends on this permission.
    Toast toast = Toast.makeText(this,
    "Write permission to the external storage is needed for this app", Toast.LENGTH_LONG);
    toast.show();
    }
    return;
    default:
    break;
    }
    }

    private void openRealm() {
    File file = getExternalFilesDir("/MyApp/Db/");

    if (!file.exists()) {
    boolean result = file.mkdir();
    Log.e("TTT", "Results: " + result);
    }
    myConfig = new RealmConfiguration.Builder(file)
    .name("test" + ".realm")
    .build();
    Realm.setDefaultConfiguration(myConfig);
    realm = Realm.getDefaultInstance();
    }
    }