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The source code is released under:
MIT License
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package com.teamtreehouse.ribbit.ui; //from ww w. j a v a 2 s. c o m import java.io.File; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; import android.app.ActionBar; import android.app.AlertDialog; import android.app.FragmentTransaction; import android.content.DialogInterface; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.support.v4.app.FragmentActivity; import android.support.v4.view.ViewPager; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.Window; import android.widget.Toast; import com.parse.ParseAnalytics; import com.parse.ParseUser; import com.teamtreehouse.ribbit.R; import com.teamtreehouse.ribbit.R.array; import com.teamtreehouse.ribbit.R.id; import com.teamtreehouse.ribbit.R.layout; import com.teamtreehouse.ribbit.R.menu; import com.teamtreehouse.ribbit.R.string; import com.teamtreehouse.ribbit.adapters.SectionsPagerAdapter; import com.teamtreehouse.ribbit.utils.ParseConstants; public class MainActivity extends FragmentActivity implements ActionBar.TabListener { public static final String TAG = MainActivity.class.getSimpleName(); public static final int TAKE_PHOTO_REQUEST = 0; public static final int TAKE_VIDEO_REQUEST = 1; public static final int PICK_PHOTO_REQUEST = 2; public static final int PICK_VIDEO_REQUEST = 3; public static final int MEDIA_TYPE_IMAGE = 4; public static final int MEDIA_TYPE_VIDEO = 5; public static final int FILE_SIZE_LIMIT = 1024*1024*10; // 10 MB protected Uri mMediaUri; protected DialogInterface.OnClickListener mDialogListener = new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { switch(which) { case 0: // Take picture Intent takePhotoIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); mMediaUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE); if (mMediaUri == null) { // display an error Toast.makeText(MainActivity.this, R.string.error_external_storage, Toast.LENGTH_LONG).show(); } else { takePhotoIntent.putExtra(MediaStore.EXTRA_OUTPUT, mMediaUri); startActivityForResult(takePhotoIntent, TAKE_PHOTO_REQUEST); } break; case 1: // Take video Intent videoIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE); mMediaUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO); if (mMediaUri == null) { // display an error Toast.makeText(MainActivity.this, R.string.error_external_storage, Toast.LENGTH_LONG).show(); } else { videoIntent.putExtra(MediaStore.EXTRA_OUTPUT, mMediaUri); videoIntent.putExtra(MediaStore.EXTRA_DURATION_LIMIT, 10); videoIntent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0); // 0 = lowest res startActivityForResult(videoIntent, TAKE_VIDEO_REQUEST); } break; case 2: // Choose picture Intent choosePhotoIntent = new Intent(Intent.ACTION_GET_CONTENT); choosePhotoIntent.setType("image/*"); startActivityForResult(choosePhotoIntent, PICK_PHOTO_REQUEST); break; case 3: // Choose video Intent chooseVideoIntent = new Intent(Intent.ACTION_GET_CONTENT); chooseVideoIntent.setType("video/*"); Toast.makeText(MainActivity.this, R.string.video_file_size_warning, Toast.LENGTH_LONG).show(); startActivityForResult(chooseVideoIntent, PICK_VIDEO_REQUEST); break; } } private Uri getOutputMediaFileUri(int mediaType) { // To be safe, you should check that the SDCard is mounted // using Environment.getExternalStorageState() before doing this. if (isExternalStorageAvailable()) { // get the URI // 1. Get the external storage directory String appName = MainActivity.this.getString(R.string.app_name); File mediaStorageDir = new File( Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), appName); // 2. Create our subdirectory if (! mediaStorageDir.exists()) { if (! mediaStorageDir.mkdirs()) { Log.e(TAG, "Failed to create directory."); return null; } } // 3. Create a file name // 4. Create the file File mediaFile; Date now = new Date(); String timestamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US).format(now); String path = mediaStorageDir.getPath() + File.separator; if (mediaType == MEDIA_TYPE_IMAGE) { mediaFile = new File(path + "IMG_" + timestamp + ".jpg"); } else if (mediaType == MEDIA_TYPE_VIDEO) { mediaFile = new File(path + "VID_" + timestamp + ".mp4"); } else { return null; } Log.d(TAG, "File: " + Uri.fromFile(mediaFile)); // 5. Return the file's URI return Uri.fromFile(mediaFile); } else { return null; } } private boolean isExternalStorageAvailable() { String state = Environment.getExternalStorageState(); if (state.equals(Environment.MEDIA_MOUNTED)) { return true; } else { return false; } } }; /** * The {@link android.support.v4.view.PagerAdapter} that will provide * fragments for each of the sections. We use a * {@link android.support.v4.app.FragmentPagerAdapter} derivative, which * will keep every loaded fragment in memory. If this becomes too memory * intensive, it may be best to switch to a * {@link android.support.v4.app.FragmentStatePagerAdapter}. */ SectionsPagerAdapter mSectionsPagerAdapter; /** * The {@link ViewPager} that will host the section contents. */ ViewPager mViewPager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); setContentView(R.layout.activity_main); ParseAnalytics.trackAppOpened(getIntent()); ParseUser currentUser = ParseUser.getCurrentUser(); if (currentUser == null) { navigateToLogin(); } else { Log.i(TAG, currentUser.getUsername()); } // Set up the action bar. final ActionBar actionBar = getActionBar(); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); // Create the adapter that will return a fragment for each of the three // primary sections of the app. mSectionsPagerAdapter = new SectionsPagerAdapter(this, getSupportFragmentManager()); // Set up the ViewPager with the sections adapter. mViewPager = (ViewPager) findViewById(R.id.pager); mViewPager.setAdapter(mSectionsPagerAdapter); // When swiping between different sections, select the corresponding // tab. We can also use ActionBar.Tab#select() to do this if we have // a reference to the Tab. mViewPager .setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() { @Override public void onPageSelected(int position) { actionBar.setSelectedNavigationItem(position); } }); // For each of the sections in the app, add a tab to the action bar. for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) { // Create a tab with text corresponding to the page title defined by // the adapter. Also specify this Activity object, which implements // the TabListener interface, as the callback (listener) for when // this tab is selected. actionBar.addTab(actionBar.newTab() .setIcon(mSectionsPagerAdapter.getIcon(i)) .setTabListener(this)); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == RESULT_OK) { if (requestCode == PICK_PHOTO_REQUEST || requestCode == PICK_VIDEO_REQUEST) { if (data == null) { Toast.makeText(this, getString(R.string.general_error), Toast.LENGTH_LONG).show(); } else { mMediaUri = data.getData(); } Log.i(TAG, "Media URI: " + mMediaUri); if (requestCode == PICK_VIDEO_REQUEST) { // make sure the file is less than 10 MB int fileSize = 0; InputStream inputStream = null; try { inputStream = getContentResolver().openInputStream(mMediaUri); fileSize = inputStream.available(); } catch (FileNotFoundException e) { Toast.makeText(this, R.string.error_opening_file, Toast.LENGTH_LONG).show(); return; } catch (IOException e) { Toast.makeText(this, R.string.error_opening_file, Toast.LENGTH_LONG).show(); return; } finally { try { inputStream.close(); } catch (IOException e) { /* Intentionally blank */ } } if (fileSize >= FILE_SIZE_LIMIT) { Toast.makeText(this, R.string.error_file_size_too_large, Toast.LENGTH_LONG).show(); return; } } } else { Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); mediaScanIntent.setData(mMediaUri); sendBroadcast(mediaScanIntent); } Intent recipientsIntent = new Intent(this, RecipientsActivity.class); recipientsIntent.setData(mMediaUri); String fileType; if (requestCode == PICK_PHOTO_REQUEST || requestCode == TAKE_PHOTO_REQUEST) { fileType = ParseConstants.TYPE_IMAGE; } else { fileType = ParseConstants.TYPE_VIDEO; } recipientsIntent.putExtra(ParseConstants.KEY_FILE_TYPE, fileType); startActivity(recipientsIntent); } else if (resultCode != RESULT_CANCELED) { Toast.makeText(this, R.string.general_error, Toast.LENGTH_LONG).show(); } } private void navigateToLogin() { Intent intent = new Intent(this, LoginActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); startActivity(intent); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int itemId = item.getItemId(); switch(itemId) { case R.id.action_logout: ParseUser.logOut(); navigateToLogin(); break; case R.id.action_edit_friends: Intent intent = new Intent(this, EditFriendsActivity.class); startActivity(intent); break; case R.id.action_camera: AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setItems(R.array.camera_choices, mDialogListener); AlertDialog dialog = builder.create(); dialog.show(); break; } return super.onOptionsItemSelected(item); } @Override public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { // When the given tab is selected, switch to the corresponding page in // the ViewPager. mViewPager.setCurrentItem(tab.getPosition()); } @Override public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { } @Override public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { } }