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package br.com.luizmarcus.exemplopalette;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.graphics.Palette;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.squareup.picasso.Callback;
import com.squareup.picasso.Picasso;
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
private static final String IMG_URL = "https://pixabay.com/static/uploads/photo/2013/10/22/03/49/waterfall-199204_960_720.jpg";
LinearLayout vibrant, vibrantDark,vibrantLight,muted, mutedDark,mutedLight;
TextView vibrantText, vibrantDarkText, vibrantLightText, mutedText, mutedDarkText, mutedLightText;
ImageView img;
private static int REQUEST_CODE = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initViews();
//Obter a imagem a partir da URL
Picasso.with(this).load(IMG_URL).into(img, new Callback() {
@Override
public void onSuccess() {
loadPallete();
}
@Override
public void onError() {
}
});
}
private void initViews(){
vibrantDark = (LinearLayout) findViewById(R.id.vibrantDark);
vibrantLight = (LinearLayout) findViewById(R.id.vibrantLight);
vibrant = (LinearLayout) findViewById(R.id.vibrant);
muted = (LinearLayout) findViewById(R.id.muted);
mutedDark = (LinearLayout) findViewById(R.id.mutedDark);
mutedLight = (LinearLayout) findViewById(R.id.mutedLight);
vibrantText = (TextView) findViewById(R.id.vibrantText);
vibrantDarkText = (TextView) findViewById(R.id.vibrantDarkText);
vibrantLightText = (TextView) findViewById(R.id.vibrantLightText);
mutedText = (TextView) findViewById(R.id.mutedText);
mutedDarkText = (TextView) findViewById(R.id.mutedDarkText);
mutedLightText = (TextView) findViewById(R.id.mutedLightText);
img = (ImageView)findViewById(R.id.img);
img.setOnClickListener(this); //Torna a imagem clicável
}
private void loadPallete(){
//obtém uma bitmap a partir da imagem do ImageView
BitmapDrawable bitmapDrawable = (BitmapDrawable) img.getDrawable();
Bitmap bitmap = bitmapDrawable.getBitmap();
/*A pallete serve para obter as cores mais predominantes de uma imagem
e setar em componentes.
*/
final Palette.Builder pallete = new Palette.Builder(bitmap);
pallete.generate(new Palette.PaletteAsyncListener() {
@Override
public void onGenerated(Palette palette) {
Palette.Swatch vibrantSwatch = palette.getVibrantSwatch();
Palette.Swatch vibrantSwatchDark = palette.getDarkVibrantSwatch();
Palette.Swatch vibrantSwatchLight = palette.getLightVibrantSwatch();
Palette.Swatch mutedSwatch = palette.getMutedSwatch();
Palette.Swatch mutedSwatchDark = palette.getDarkMutedSwatch();
Palette.Swatch mutedSwatchLight = palette.getLightMutedSwatch();
if (vibrantSwatch!=null) {
vibrant.setBackgroundColor(vibrantSwatch.getRgb());
vibrantText.setTextColor(vibrantSwatch.getTitleTextColor());
vibrantText.setText("Vibrant");
}
if (vibrantSwatchDark!=null) {
vibrantDark.setBackgroundColor(vibrantSwatchDark.getRgb());
vibrantDarkText.setTextColor(vibrantSwatchDark.getTitleTextColor());
vibrantDarkText.setText("Vibrant Dark");
}
if (vibrantSwatchLight!=null) {
vibrantLight.setBackgroundColor(vibrantSwatchLight.getRgb());
vibrantLightText.setTextColor(vibrantSwatchLight.getTitleTextColor());
vibrantLightText.setText("Vibrant Light");
}
if (mutedSwatch!=null) {
muted.setBackgroundColor(mutedSwatch.getRgb());
mutedText.setTextColor(mutedSwatch.getTitleTextColor());
mutedText.setText("Muted");
}
if (mutedSwatchLight!=null) {
mutedLight.setBackgroundColor(mutedSwatchLight.getRgb());
mutedLightText.setTextColor(mutedSwatchLight.getTitleTextColor());
mutedLightText.setText("Muted Light");
}
if(mutedSwatchDark!=null) {
mutedDark.setBackgroundColor(mutedSwatchDark.getRgb());
mutedDarkText.setTextColor(mutedSwatchDark.getTitleTextColor());
mutedDarkText.setText("Muted Dark");
}
}
});
}
@Override
public void onClick(View v) {
//Abre a galeria
Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
//Após a imagem ser escolhida chama o onActivityResult
startActivityForResult(i, REQUEST_CODE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
//Obtém a imagem caso ela não seja nula e exibe no imageView
if (requestCode == REQUEST_CODE && resultCode == RESULT_OK && data!=null) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
img.setImageBitmap(BitmapFactory.decodeFile(picturePath));
loadPallete();//carrega a pallete para a imagem escolhida.
}
}
}
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