Image Compression Library for Android
Handy Library to compress and upload images when the files are too large.
https://github.com/zetbaitsu/CompressorStep 1:
Add below line to buid.gradle file
compile 'id.zelory:compressor:1.0.4'
Step 2:
MainActivity.java1
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128 | package com.pratap.imagecompression;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
import java.text.DecimalFormat;
import id.zelory.compressor.Compressor;
import id.zelory.compressor.FileUtil;
public class MainActivity extends AppCompatActivity {
ImageView img_original, img_compressed;
TextView txt_filePath;
Button btnSelectImage;
private File actualImage;
private File compressedImage;
private static final int PICK_IMAGE_REQUEST = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
img_original = (ImageView) findViewById(R.id.img_original);
img_compressed = (ImageView) findViewById(R.id.img_compressed);
txt_filePath = (TextView) findViewById(R.id.txt_filePath);
btnSelectImage = (Button) findViewById(R.id.btnSelectImage);
btnSelectImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
chooseImage(view);
}
});
}
public void chooseImage(View view) {
/*Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image*//*");
startActivityForResult(intent, PICK_IMAGE_REQUEST);*/
Intent i = new Intent(
Intent.ACTION_PICK,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, PICK_IMAGE_REQUEST);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK) {
if (data == null) {
showError("Failed to open picture!");
return;
}
try {
actualImage = FileUtil.from(this, data.getData());
// code to compress image and stores it Pictures folder
compressedImage = new Compressor.Builder(this)
.setMaxWidth(640)
.setMaxHeight(480)
.setQuality(90)
.setCompressFormat(Bitmap.CompressFormat.PNG)
.setDestinationDirectoryPath(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES).getAbsolutePath())
.build()
.compressToFile(actualImage);
txt_filePath.setText(
String.format("Actual Size : %s", getReadableFileSize(actualImage.length()) + "" +
"\nActual FilePath : "+ actualImage.getAbsolutePath() +
String.format("\nCompressed Size : %s", getReadableFileSize(compressedImage.length()))+
"\nCompressed FilePath : "+ compressedImage.getAbsolutePath()
));
img_original.setImageBitmap(BitmapFactory.decodeFile(actualImage.getAbsolutePath()));
img_compressed.setImageBitmap(BitmapFactory.decodeFile(compressedImage.getAbsolutePath()));
} catch (IOException e) {
showError("Failed to read picture data!");
e.printStackTrace();
}
}
}
public String getReadableFileSize(long size) {
if (size <= 0) {
return "0";
}
final String[] units = new String[]{"B", "KB", "MB", "GB", "TB"};
int digitGroups = (int) (Math.log10(size) / Math.log10(1024));
return new DecimalFormat("#,##0.#").format(size / Math.pow(1024, digitGroups)) + " " + units[digitGroups];
}
public void showError(String errorMessage) {
Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT).show();
}
}
|
activity_main.xml
==============
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="@+id/img_original"
android:layout_width="match_parent"
android:layout_height="250dp"
android:layout_weight="1"
android:padding="1dp"
android:scaleType="centerCrop" />
<ImageView
android:id="@+id/img_compressed"
android:layout_width="match_parent"
android:layout_height="250dp"
android:layout_weight="1"
android:padding="1dp"
android:scaleType="centerCrop" />
</LinearLayout>
<TextView
android:id="@+id/txt_filePath"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/linearLayout"
android:layout_centerHorizontal="true"
android:layout_margin="10dp"
android:text="" />
<Button
android:id="@+id/btnSelectImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:text="Select Image" />
</RelativeLayout>
Code Snippet that do compress the image
==============================
compressedImage = new Compressor.Builder(this)
.setMaxWidth(640)
.setMaxHeight(480)
.setQuality(90)
.setCompressFormat(Bitmap.CompressFormat.PNG)
.setDestinationDirectoryPath(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES).getAbsolutePath())
.build()
.compressToFile(actualImage);
References:
https://github.com/zetbaitsu/Compressor
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