Java tutorial
/* * Copyright (c) 2016 Qiscus. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.qiscus.sdk.ui; import android.content.Context; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.support.v4.util.Pair; import android.support.v4.view.ViewPager; import android.support.v7.widget.Toolbar; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.ImageButton; import android.widget.ProgressBar; import android.widget.TextView; import android.widget.Toast; import com.qiscus.sdk.R; import com.qiscus.sdk.data.model.QiscusComment; import com.qiscus.sdk.presenter.QiscusPhotoViewerPresenter; import com.qiscus.sdk.ui.adapter.QiscusPhotoPagerAdapter; import com.qiscus.sdk.ui.fragment.QiscusPhotoFragment; import com.qiscus.sdk.util.QiscusDateUtil; import com.trello.rxlifecycle.components.support.RxAppCompatActivity; import java.io.File; import java.util.ArrayList; import java.util.List; /** * Created on : March 04, 2017 * Author : zetbaitsu * Name : Zetra * GitHub : https://github.com/zetbaitsu */ public class QiscusPhotoViewerActivity extends RxAppCompatActivity implements QiscusPhotoViewerPresenter.View, ViewPager.OnPageChangeListener, QiscusPhotoFragment.ClickListener { private static final String EXTRA_COMMENT = "extra_comment"; private static final String KEY_POSITION = "last_position"; private Toolbar toolbar; private TextView tvTitle; private ViewPager viewPager; private ProgressBar progressBar; private TextView senderName; private TextView date; private View infoPanel; private Animation fadein, fadeout; private QiscusComment qiscusComment; private int position = -1; private List<Pair<QiscusComment, File>> qiscusPhotos; public static Intent generateIntent(Context context, QiscusComment qiscusComment) { Intent intent = new Intent(context, QiscusPhotoViewerActivity.class); intent.putExtra(EXTRA_COMMENT, qiscusComment); return intent; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_qiscus_photo_viewer); toolbar = (Toolbar) findViewById(R.id.toolbar); tvTitle = (TextView) findViewById(R.id.tv_title); viewPager = (ViewPager) findViewById(R.id.view_pager); progressBar = (ProgressBar) findViewById(R.id.progress_bar); senderName = (TextView) findViewById(R.id.sender_name); date = (TextView) findViewById(R.id.date); ImageButton shareButton = (ImageButton) findViewById(R.id.action_share); infoPanel = findViewById(R.id.info_panel); fadein = AnimationUtils.loadAnimation(this, R.anim.fadein); fadeout = AnimationUtils.loadAnimation(this, R.anim.fadeout); findViewById(R.id.back).setOnClickListener(v -> onBackPressed()); setSupportActionBar(toolbar); viewPager.addOnPageChangeListener(this); resolveData(savedInstanceState); QiscusPhotoViewerPresenter presenter = new QiscusPhotoViewerPresenter(this); presenter.loadQiscusPhotos(qiscusComment.getTopicId()); shareButton.setOnClickListener(v -> { Pair<QiscusComment, File> qiscusPhoto = qiscusPhotos.get(position); shareImage(qiscusPhoto.second); }); } private void resolveData(Bundle savedInstanceState) { qiscusComment = getIntent().getParcelableExtra(EXTRA_COMMENT); if (qiscusComment == null && savedInstanceState != null) { qiscusComment = savedInstanceState.getParcelable(EXTRA_COMMENT); } if (qiscusComment == null) { finish(); return; } } private void shareImage(File imageFile) { Intent intent = new Intent(Intent.ACTION_SEND); intent.setType("image/jpg"); intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(imageFile)); startActivity(Intent.createChooser(intent, "Share")); } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putParcelable(EXTRA_COMMENT, qiscusComment); outState.putInt(KEY_POSITION, position); } @Override public void showError(String errorMessage) { Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT).show(); finish(); } @Override public void showLoading() { progressBar.setVisibility(View.VISIBLE); } @Override public void dismissLoading() { progressBar.setVisibility(View.GONE); } @Override public void onLoadQiscusPhotos(List<Pair<QiscusComment, File>> qiscusPhotos) { this.qiscusPhotos = qiscusPhotos; initPhotos(); } private void initPhotos() { List<QiscusPhotoFragment> fragments = new ArrayList<>(); for (int i = 0; i < qiscusPhotos.size(); i++) { Pair<QiscusComment, File> qiscusPhoto = qiscusPhotos.get(i); fragments.add(QiscusPhotoFragment.newInstance(qiscusPhoto.second)); if (position == -1 && qiscusPhoto.first.equals(qiscusComment)) { position = i; } } viewPager.setAdapter(new QiscusPhotoPagerAdapter(getSupportFragmentManager(), fragments)); viewPager.setCurrentItem(position); bindInfo(); } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { this.position = position; bindInfo(); } private void bindInfo() { Pair<QiscusComment, File> qiscusPhoto = qiscusPhotos.get(position); senderName.setText(qiscusPhoto.first.getSender()); date.setText(QiscusDateUtil.toFullDateFormat(qiscusPhoto.first.getTime())); tvTitle.setText((position + 1) + " of " + qiscusPhotos.size()); } @Override public void onPageScrollStateChanged(int state) { } @Override public void onPhotoClick() { if (infoPanel.getVisibility() == View.VISIBLE) { infoPanel.startAnimation(fadeout); toolbar.startAnimation(fadeout); infoPanel.setVisibility(View.GONE); toolbar.setVisibility(View.GONE); } else { infoPanel.startAnimation(fadein); toolbar.startAnimation(fadein); infoPanel.setVisibility(View.VISIBLE); toolbar.setVisibility(View.VISIBLE); } } }