Java tutorial
/* Copyright 2017 Andrew Dawson * * This file is a part of Tusky. * * This program is free software; you can redistribute it and/or modify it under the terms of the * GNU General Public License as published by the Free Software Foundation; either version 3 of the * License, or (at your option) any later version. * * Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General * Public License for more details. * * You should have received a copy of the GNU General Public License along with Tusky; if not, * see <http://www.gnu.org/licenses>. */ package com.fa.mastodon.activity; import android.Manifest; import android.content.ContentResolver; import android.content.Intent; import android.content.pm.PackageManager; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.net.Uri; import android.os.AsyncTask; import android.os.Build; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.design.widget.Snackbar; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; import android.support.v7.app.ActionBar; import android.support.v7.widget.Toolbar; import android.util.Base64; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.EditText; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.ProgressBar; import com.fa.mastodon.entity.Account; import com.fa.mastodon.entity.Profile; import com.fa.mastodon.util.IOUtils; import com.fa.mastodon.util.Log; import com.keylesspalace.tusky.R; import com.pkmmte.view.CircularImageView; import com.squareup.picasso.Picasso; import com.theartofdev.edmodo.cropper.CropImage; import java.io.ByteArrayOutputStream; import java.io.FileNotFoundException; import java.io.InputStream; import java.util.ArrayList; import java.util.List; import butterknife.BindView; import butterknife.ButterKnife; import retrofit2.Call; import retrofit2.Callback; import retrofit2.Response; public class EditProfileActivity extends BaseActivity { private static final String TAG = "EditProfileActivity"; private static final int AVATAR_PICK_RESULT = 1; private static final int HEADER_PICK_RESULT = 2; private static final int PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE = 1; private static final int AVATAR_WIDTH = 120; private static final int AVATAR_HEIGHT = 120; private static final int HEADER_WIDTH = 700; private static final int HEADER_HEIGHT = 335; private enum PickType { NOTHING, AVATAR, HEADER } @BindView(R.id.edit_profile_header) ImageButton headerButton; @BindView(R.id.edit_profile_header_preview) ImageView headerPreview; @BindView(R.id.edit_profile_header_progress) ProgressBar headerProgress; @BindView(R.id.edit_profile_avatar) ImageButton avatarButton; @BindView(R.id.edit_profile_avatar_preview) ImageView avatarPreview; @BindView(R.id.edit_profile_avatar_progress) ProgressBar avatarProgress; @BindView(R.id.edit_profile_display_name) EditText displayNameEditText; @BindView(R.id.edit_profile_note) EditText noteEditText; @BindView(R.id.edit_profile_save_progress) ProgressBar saveProgress; private String priorDisplayName; private String priorNote; private boolean isAlreadySaving; private PickType currentlyPicking; private String avatarBase64; private String headerBase64; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_edit_profile); ButterKnife.bind(this); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); ActionBar actionBar = getSupportActionBar(); if (actionBar != null) { actionBar.setTitle(getString(R.string.title_edit_profile)); actionBar.setDisplayHomeAsUpEnabled(true); actionBar.setDisplayShowHomeEnabled(true); } if (savedInstanceState != null) { priorDisplayName = savedInstanceState.getString("priorDisplayName"); priorNote = savedInstanceState.getString("priorNote"); isAlreadySaving = savedInstanceState.getBoolean("isAlreadySaving"); currentlyPicking = (PickType) savedInstanceState.getSerializable("currentlyPicking"); avatarBase64 = savedInstanceState.getString("avatarBase64"); headerBase64 = savedInstanceState.getString("headerBase64"); } else { priorDisplayName = null; priorNote = null; isAlreadySaving = false; currentlyPicking = PickType.NOTHING; avatarBase64 = null; headerBase64 = null; } avatarButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { onMediaPick(PickType.AVATAR); } }); headerButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { onMediaPick(PickType.HEADER); } }); avatarPreview.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { avatarPreview.setImageBitmap(null); avatarPreview.setVisibility(View.INVISIBLE); avatarBase64 = null; } }); headerPreview.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { headerPreview.setImageBitmap(null); headerPreview.setVisibility(View.INVISIBLE); headerBase64 = null; } }); mastodonAPI.accountVerifyCredentials().enqueue(new Callback<Account>() { @Override public void onResponse(Call<Account> call, Response<Account> response) { if (!response.isSuccessful()) { onAccountVerifyCredentialsFailed(); return; } Account me = response.body(); priorDisplayName = me.getDisplayName(); priorNote = me.note.toString(); CircularImageView avatar = (CircularImageView) findViewById(R.id.edit_profile_avatar_preview); ImageView header = (ImageView) findViewById(R.id.edit_profile_header_preview); displayNameEditText.setText(priorDisplayName); noteEditText.setText(priorNote); Picasso.with(avatar.getContext()).load(me.avatar).placeholder(R.drawable.avatar_default) .error(R.drawable.avatar_error).into(avatar); Picasso.with(header.getContext()).load(me.header).placeholder(R.drawable.account_header_default) .into(header); } @Override public void onFailure(Call<Account> call, Throwable t) { onAccountVerifyCredentialsFailed(); } }); } @Override protected void onSaveInstanceState(Bundle outState) { outState.putString("priorDisplayName", priorDisplayName); outState.putString("priorNote", priorNote); outState.putBoolean("isAlreadySaving", isAlreadySaving); outState.putSerializable("currentlyPicking", currentlyPicking); outState.putString("avatarBase64", avatarBase64); outState.putString("headerBase64", headerBase64); super.onSaveInstanceState(outState); } private void onAccountVerifyCredentialsFailed() { Log.e(TAG, "The account failed to load."); } private void onMediaPick(PickType pickType) { if (currentlyPicking != PickType.NOTHING) { // Ignore inputs if another pick operation is still occurring. return; } currentlyPicking = pickType; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN && ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.READ_EXTERNAL_STORAGE }, PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE); } else { initiateMediaPicking(); } } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) { switch (requestCode) { case PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE: { if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { initiateMediaPicking(); } else { endMediaPicking(); Snackbar.make(avatarButton, R.string.error_media_upload_permission, Snackbar.LENGTH_LONG).show(); } break; } } } private void initiateMediaPicking() { Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.addCategory(Intent.CATEGORY_OPENABLE); intent.setType("image/*"); switch (currentlyPicking) { case AVATAR: { startActivityForResult(intent, AVATAR_PICK_RESULT); break; } case HEADER: { startActivityForResult(intent, HEADER_PICK_RESULT); break; } } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.edit_profile_toolbar, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: { onBackPressed(); return true; } case R.id.action_save: { save(); return true; } } return super.onOptionsItemSelected(item); } private void save() { if (isAlreadySaving || currentlyPicking != PickType.NOTHING) { return; } String newDisplayName = displayNameEditText.getText().toString(); if (newDisplayName.isEmpty()) { displayNameEditText.setError(getString(R.string.error_empty)); return; } if (priorDisplayName != null && priorDisplayName.equals(newDisplayName)) { // If it's not any different, don't patch it. newDisplayName = null; } String newNote = noteEditText.getText().toString(); if (newNote.isEmpty()) { noteEditText.setError(getString(R.string.error_empty)); return; } if (priorNote != null && priorNote.equals(newNote)) { // If it's not any different, don't patch it. newNote = null; } if (newDisplayName == null && newNote == null && avatarBase64 == null && headerBase64 == null) { // If nothing is changed, then there's nothing to save. return; } saveProgress.setVisibility(View.VISIBLE); isAlreadySaving = true; Profile profile = new Profile(); profile.displayName = newDisplayName; profile.note = newNote; profile.avatar = avatarBase64; profile.header = headerBase64; mastodonAPI.accountUpdateCredentials(profile).enqueue(new Callback<Account>() { @Override public void onResponse(Call<Account> call, Response<Account> response) { if (!response.isSuccessful()) { onSaveFailure(); return; } getPrivatePreferences().edit().putBoolean("refreshProfileHeader", true).apply(); finish(); } @Override public void onFailure(Call<Account> call, Throwable t) { onSaveFailure(); } }); } private void onSaveFailure() { isAlreadySaving = false; Snackbar.make(avatarButton, R.string.error_media_upload_sending, Snackbar.LENGTH_LONG).show(); saveProgress.setVisibility(View.GONE); } private void beginMediaPicking() { switch (currentlyPicking) { case AVATAR: { avatarProgress.setVisibility(View.VISIBLE); avatarPreview.setVisibility(View.INVISIBLE); break; } case HEADER: { headerProgress.setVisibility(View.VISIBLE); headerPreview.setVisibility(View.INVISIBLE); break; } } } private void endMediaPicking() { switch (currentlyPicking) { case AVATAR: { avatarProgress.setVisibility(View.GONE); break; } case HEADER: { headerProgress.setVisibility(View.GONE); break; } } currentlyPicking = PickType.NOTHING; } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (requestCode) { case AVATAR_PICK_RESULT: { if (resultCode == RESULT_OK && data != null) { CropImage.activity(data.getData()).setInitialCropWindowPaddingRatio(0) .setAspectRatio(AVATAR_WIDTH, AVATAR_HEIGHT).start(this); } else { endMediaPicking(); } break; } case HEADER_PICK_RESULT: { if (resultCode == RESULT_OK && data != null) { CropImage.activity(data.getData()).setInitialCropWindowPaddingRatio(0) .setAspectRatio(HEADER_WIDTH, HEADER_HEIGHT).start(this); } else { endMediaPicking(); } break; } case CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE: { CropImage.ActivityResult result = CropImage.getActivityResult(data); if (resultCode == RESULT_OK) { beginResize(result.getUri()); } else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) { onResizeFailure(); } break; } } } private void beginResize(Uri uri) { beginMediaPicking(); int width, height; switch (currentlyPicking) { default: { throw new AssertionError("PickType not set."); } case AVATAR: { width = AVATAR_WIDTH; height = AVATAR_HEIGHT; break; } case HEADER: { width = HEADER_WIDTH; height = HEADER_HEIGHT; break; } } new ResizeImageTask(getContentResolver(), width, height, new ResizeImageTask.Listener() { @Override public void onSuccess(List<Bitmap> contentList) { Bitmap bitmap = contentList.get(0); PickType pickType = currentlyPicking; endMediaPicking(); switch (pickType) { case AVATAR: { avatarPreview.setImageBitmap(bitmap); avatarPreview.setVisibility(View.VISIBLE); avatarBase64 = bitmapToBase64(bitmap); break; } case HEADER: { headerPreview.setImageBitmap(bitmap); headerPreview.setVisibility(View.VISIBLE); headerBase64 = bitmapToBase64(bitmap); break; } } } @Override public void onFailure() { onResizeFailure(); } }).execute(uri); } private void onResizeFailure() { Snackbar.make(avatarButton, R.string.error_media_upload_sending, Snackbar.LENGTH_LONG).show(); endMediaPicking(); } private static String bitmapToBase64(Bitmap bitmap) { ByteArrayOutputStream stream = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream); byte[] byteArray = stream.toByteArray(); IOUtils.closeQuietly(stream); return "data:image/png;base64," + Base64.encodeToString(byteArray, Base64.DEFAULT); } private static class ResizeImageTask extends AsyncTask<Uri, Void, Boolean> { private ContentResolver contentResolver; private int resizeWidth; private int resizeHeight; private Listener listener; private List<Bitmap> resultList; ResizeImageTask(ContentResolver contentResolver, int width, int height, Listener listener) { this.contentResolver = contentResolver; this.resizeWidth = width; this.resizeHeight = height; this.listener = listener; } @Override protected Boolean doInBackground(Uri... uris) { resultList = new ArrayList<>(); for (Uri uri : uris) { InputStream inputStream; try { inputStream = contentResolver.openInputStream(uri); } catch (FileNotFoundException e) { return false; } Bitmap sourceBitmap; try { sourceBitmap = BitmapFactory.decodeStream(inputStream, null, null); } catch (OutOfMemoryError error) { return false; } finally { IOUtils.closeQuietly(inputStream); } if (sourceBitmap == null) { return false; } Bitmap bitmap = Bitmap.createScaledBitmap(sourceBitmap, resizeWidth, resizeHeight, false); sourceBitmap.recycle(); if (bitmap == null) { return false; } resultList.add(bitmap); if (isCancelled()) { return false; } } return true; } @Override protected void onPostExecute(Boolean successful) { if (successful) { listener.onSuccess(resultList); } else { listener.onFailure(); } super.onPostExecute(successful); } interface Listener { void onSuccess(List<Bitmap> contentList); void onFailure(); } } }