/
ImageFormatProgressiveJpegFragment.java
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/
ImageFormatProgressiveJpegFragment.java
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/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
package com.facebook.fresco.samples.showcase.imageformat.pjpeg;
import android.graphics.drawable.Animatable;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.CompoundButton;
import android.widget.ScrollView;
import android.widget.Spinner;
import android.widget.TextView;
import androidx.annotation.Nullable;
import androidx.appcompat.widget.SwitchCompat;
import com.facebook.drawee.backends.pipeline.Fresco;
import com.facebook.drawee.controller.BaseControllerListener;
import com.facebook.drawee.drawable.ProgressBarDrawable;
import com.facebook.drawee.interfaces.DraweeController;
import com.facebook.drawee.view.SimpleDraweeView;
import com.facebook.fresco.samples.showcase.BaseShowcaseFragment;
import com.facebook.fresco.samples.showcase.R;
import com.facebook.fresco.samples.showcase.misc.ImageUriProvider;
import com.facebook.fresco.samples.showcase.misc.LogcatImagePerfDataListener;
import com.facebook.fresco.ui.common.ImagePerfDataListener;
import com.facebook.imagepipeline.image.ImageInfo;
import com.facebook.imagepipeline.image.QualityInfo;
import com.facebook.imagepipeline.request.ImageRequest;
import com.facebook.imagepipeline.request.ImageRequestBuilder;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
/** Progressive JPEG example that logs which frames of a progressive JPEG are rendered */
public class ImageFormatProgressiveJpegFragment extends BaseShowcaseFragment {
private Entry[] mSpinnerEntries;
private final DateFormat mDateFormat = new SimpleDateFormat("HH:mm:ss.SSS");
private final ImagePerfDataListener mImagePerfDataListener = new LogcatImagePerfDataListener();
private SimpleDraweeView mSimpleDraweeView;
private boolean mProgressiveRenderingEnabled;
private TextView mDebugOutput;
private ScrollView mDebugOutputScrollView;
@Nullable
@Override
public View onCreateView(
LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_format_progressive_jpeg, container, false);
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
mSpinnerEntries =
new Entry[] {
new Entry(
R.string.format_pjpeg_label_small,
sampleUris().createSampleUri(ImageUriProvider.ImageSize.L)),
new Entry(
R.string.format_pjpeg_label_medium,
sampleUris().createSampleUri(ImageUriProvider.ImageSize.M)),
new Entry(
R.string.format_pjpeg_label_large,
sampleUris().createSampleUri(ImageUriProvider.ImageSize.S)),
new Entry(R.string.format_pjpeg_label_slow, sampleUris().createPJPEGSlow()),
};
ProgressBarDrawable progressBarDrawable = new ProgressBarDrawable();
progressBarDrawable.setColor(getResources().getColor(R.color.progress_bar_color));
progressBarDrawable.setBackgroundColor(
getResources().getColor(R.color.progress_bar_background));
mSimpleDraweeView = (SimpleDraweeView) view.findViewById(R.id.drawee_view);
mSimpleDraweeView.getHierarchy().setProgressBarImage(progressBarDrawable);
mDebugOutput = (TextView) view.findViewById(R.id.debug_output);
mDebugOutputScrollView = (ScrollView) view.findViewById(R.id.debug_output_scroll_view);
final SwitchCompat switchProgressiveRenderingEnabled =
(SwitchCompat) view.findViewById(R.id.switch_progressive_enabled);
switchProgressiveRenderingEnabled.setOnCheckedChangeListener(
new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
mProgressiveRenderingEnabled = isChecked;
}
});
mProgressiveRenderingEnabled = switchProgressiveRenderingEnabled.isChecked();
final Spinner spinner = (Spinner) view.findViewById(R.id.spinner);
spinner.setAdapter(new SimpleUriListAdapter());
spinner.setOnItemSelectedListener(
new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
final Entry spinnerEntry = mSpinnerEntries[spinner.getSelectedItemPosition()];
setImageUri(spinnerEntry.uri);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {}
});
spinner.setSelection(0);
}
private void setImageUri(Uri uri) {
mDebugOutput.setText("");
ImageRequest request =
ImageRequestBuilder.newBuilderWithSource(uri)
.setProgressiveRenderingEnabled(mProgressiveRenderingEnabled)
.build();
DraweeController controller =
Fresco.newDraweeControllerBuilder()
.setImageRequest(request)
.setRetainImageOnFailure(true)
.setPerfDataListener(mImagePerfDataListener)
.setControllerListener(
new BaseControllerListener<ImageInfo>() {
@Override
public void onFinalImageSet(
String id,
@javax.annotation.Nullable ImageInfo imageInfo,
@javax.annotation.Nullable Animatable animatable) {
if (imageInfo != null) {
QualityInfo qualityInfo = imageInfo.getQualityInfo();
logScan(qualityInfo, true);
}
}
@Override
public void onIntermediateImageSet(
String id, @javax.annotation.Nullable ImageInfo imageInfo) {
if (imageInfo != null) {
QualityInfo qualityInfo = imageInfo.getQualityInfo();
logScan(qualityInfo, false);
}
}
@Override
public void onIntermediateImageFailed(String id, Throwable throwable) {
mDebugOutput.append(
String.format(
Locale.getDefault(),
"onIntermediateImageFailed, %s\n",
throwable.getMessage()));
}
})
.build();
mSimpleDraweeView.setController(controller);
}
private void logScan(QualityInfo qualityInfo, boolean isFinalImage) {
mDebugOutput.append(
String.format(
Locale.getDefault(),
"%s: %s, goodEnough=%b, fullQuality=%b, quality=%d\n\n",
mDateFormat.format(new Date(System.currentTimeMillis())),
isFinalImage ? "final" : "intermediate",
qualityInfo.isOfGoodEnoughQuality(),
qualityInfo.isOfFullQuality(),
qualityInfo.getQuality()));
// Scroll to the bottom
mDebugOutputScrollView.post(
new Runnable() {
@Override
public void run() {
mDebugOutputScrollView.scrollTo(0, mDebugOutputScrollView.getBottom());
}
});
}
private class SimpleUriListAdapter extends BaseAdapter {
@Override
public int getCount() {
return mSpinnerEntries.length;
}
@Override
public Entry getItem(int position) {
return mSpinnerEntries[position];
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final LayoutInflater layoutInflater = getLayoutInflater(null);
final View view =
convertView != null
? convertView
: layoutInflater.inflate(
android.R.layout.simple_spinner_dropdown_item, parent, false);
final TextView textView = (TextView) view.findViewById(android.R.id.text1);
textView.setText(mSpinnerEntries[position].descriptionId);
return view;
}
}
private static class Entry {
final int descriptionId;
final Uri uri;
private Entry(int descriptionId, Uri uri) {
this.descriptionId = descriptionId;
this.uri = uri;
}
}
}