MaterialDesign_Palette
Palette：可以在一张图片里面分析出一些色彩特性：主色调、鲜艳的颜色、柔和颜色等等……
Activity：
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.graphics.Palette;
import android.support.v7.graphics.Palette.PaletteAsyncListener;
import android.support.v7.graphics.Palette.Swatch;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private ImageView iv;
private TextView tv_title;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv = (ImageView)findViewById(R.id.iv);
tv_title = (TextView)findViewById(R.id.tv_title);
final TextView tv1 = (TextView)findViewById(R.id.tv1);
final TextView tv2 = (TextView)findViewById(R.id.tv2);
final TextView tv3 = (TextView)findViewById(R.id.tv3);
final TextView tv4 = (TextView)findViewById(R.id.tv4);
final TextView tv5 = (TextView)findViewById(R.id.tv5);
final TextView tv6 = (TextView)findViewById(R.id.tv6);
BitmapDrawable drawable = (BitmapDrawable) iv.getDrawable();
Bitmap bitmap = drawable.getBitmap();
//得到bitmap里面的的一些色彩信息---通过Palette类分析出来的
// Palette palette = Palette.generate(bitmap);
//异步任务---可能分析的图片会比较大或者颜色分布比较复杂，会耗时比较久，防止卡死主线程。
Palette.from(bitmap).generate(new PaletteAsyncListener() {
@Override
public void onGenerated(Palette palette) {
//暗、柔和的颜色
int darkMutedColor = palette.getDarkMutedColor(Color.BLUE);//如果分析不出来，则返回默认颜色
//暗、柔和
int lightMutedColor = palette.getLightMutedColor(Color.BLUE);
//暗、鲜艳
int darkVibrantColor = palette.getDarkVibrantColor(Color.BLUE);
//亮、鲜艳
int lightVibrantColor = palette.getLightVibrantColor(Color.BLUE);
//柔和
int mutedColor = palette.getMutedColor(Color.BLUE);
//柔和
int vibrantColor = palette.getVibrantColor(Color.BLUE);
//获取某种特性颜色的样品
// Swatch lightVibrantSwatch = palette.getLightVibrantSwatch();
Swatch lightVibrantSwatch = palette.getVibrantSwatch();
//谷歌推荐的：图片的整体的颜色rgb的混合值---主色调
int rgb = lightVibrantSwatch.getRgb();
//谷歌推荐：图片中间的文字颜色
int bodyTextColor = lightVibrantSwatch.getBodyTextColor();
//谷歌推荐：作为标题的颜色（有一定的和图片的对比度的颜色值）
int titleTextColor = lightVibrantSwatch.getTitleTextColor();
//颜色向量
float[] hsl = lightVibrantSwatch.getHsl();
//分析该颜色在图片中所占的像素多少值
int population = lightVibrantSwatch.getPopulation();
tv_title.setBackgroundColor(getTranslucentColor(0.6f,rgb));
tv_title.setTextColor(titleTextColor);
tv1.setBackgroundColor(darkMutedColor);
tv1.setText("darkMutedColor");
tv2.setBackgroundColor(lightMutedColor);
tv2.setText("lightMutedColor");
tv3.setBackgroundColor(darkVibrantColor);
tv3.setText("darkVibrantColor");
tv4.setBackgroundColor(lightVibrantColor);
tv4.setText("lightVibrantColor");
tv5.setBackgroundColor(mutedColor);
tv5.setText("mutedColor");
tv6.setBackgroundColor(vibrantColor);
tv6.setText("vibrantColor");
}
});
}
protected int getTranslucentColor(float percent, int rgb) {
// 10101011110001111
int blue = Color.blue(rgb);
int green = Color.green(rgb);
int red = Color.red(rgb);
int alpha = Color.alpha(rgb);
// int blue = rgb & 0xff;
// int green = rgb>>8 & 0xff;
// int red = rgb>>16 & 0xff;
// int alpha = rgb>>>24;
alpha = Math.round(alpha*percent);
Toast.makeText(this, "alpha:"+alpha+",red:"+red+",green:"+green, 1).show();
return Color.argb(alpha, red, green, blue);
}
}
布局:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.ricky.materialdesign.palette.MainActivity" >
<RelativeLayout
android:layout_width="200dp"
android:layout_height="230dp">
<ImageView
android:id="@+id/iv"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="centerCrop"
android:src="@drawable/hehe" />
<TextView
android:id="@+id/tv_title"
android:layout_width="fill_parent"
android:layout_height="80dp"
android:background="#5fff"
android:gravity="center"
android:text="倩倩靓照" />
</RelativeLayout>
<TextView
android:id="@+id/tv1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="text" />
<TextView
android:id="@+id/tv2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="text" />
<TextView
android:id="@+id/tv3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="text" />
<TextView
android:id="@+id/tv4"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="text" />
<TextView
android:id="@+id/tv5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="text" />
<TextView
android:id="@+id/tv6"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="text" />
</LinearLayout>
运行截图:
