点击图片自动变色

package com.example.imagelTint;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.ColorStateList;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorFilter;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.StateListDrawable;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.Toast;


import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.core.graphics.drawable.DrawableCompat;

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;


@SuppressLint("AppCompatCustomView")
public class MyImageView extends ImageButton {
    public static final int GET_DATA_SUCCESS = 1;
    public static final int NETWORK_ERROR = 2;
    public static final int SERVER_ERROR = 3;
    private Bitmap mBitmap;
    //子线程不能操作UI，通过Handler设置图片
    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what){
                case GET_DATA_SUCCESS:
                    Bitmap bitmap = (Bitmap) msg.obj;
                    setImageBitmap(bitmap);
                    break;
                case NETWORK_ERROR:
                    Toast.makeText(getContext(),"网络连接失败",Toast.LENGTH_LONG);
                    break;
                case SERVER_ERROR:
                    Toast.makeText(getContext(),"服务器发生错误",Toast.LENGTH_LONG);
                    break;
            }
        }
    };

    public MyImageView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initView();
    }

    public MyImageView(Context context) {
        super(context);
        initView();
    }

    public MyImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
        initView();
    }
    private void initView(){
        Drawable src = MyImageView.this.getDrawable();
        MyImageView.this.setImageDrawable(tintDrawable(src));
        MyImageView.this.setClickable(true);
//         设置可以点击
    }
    private Drawable tintDrawable(Drawable normal) {
        final Drawable press = DrawableCompat.wrap(normal);
        final StateListDrawable draw = new StateListDrawable();
        draw.addState(new int[]{-android.R.attr.state_pressed},getResources().getDrawable(R.drawable.batman));
        DrawableCompat.setTint(press, 0x4bFF00FF);
        draw.addState(new int[]{android.R.attr.state_pressed},normal);
        return draw;
    }

    //设置网络图片
    public void setImageURL(final String path) {
        //开启一个线程用于联网
        new Thread() {
            @Override
            public void run() {
                try {
                    //把传过来的路径转成URL
                    URL url = new URL(path);
                    //获取连接
                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                    //使用GET方法访问网络
                    connection.setRequestMethod("GET");
                    //超时时间为10秒
                    connection.setConnectTimeout(10000);
                    //获取返回码
                    int code = connection.getResponseCode();
                    if (code == 200) {
                        InputStream inputStream = connection.getInputStream();
                        //使用工厂把网络的输入流生产Bitmap
                        mBitmap = BitmapFactory.decodeStream(inputStream);
                        //利用Message把图片发给Handler
                        Message msg = Message.obtain();
                        msg.obj = mBitmap;
                        msg.what = GET_DATA_SUCCESS;
                        handler.sendMessage(msg);
                        inputStream.close();
                    }else {
                        //服务启发生错误
                        handler.sendEmptyMessage(SERVER_ERROR);
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                    //网络连接错误
                    handler.sendEmptyMessage(NETWORK_ERROR);
                }
            }
        }.start();
    }
    /**
     * 获取网络图片Bitmap
     */
    public Bitmap getBitmap() {
        return mBitmap;
    }
}

　　修改色调，饱和度，亮度，参考：https://blog.csdn.net/u010542146/article/details/50538335/

标签：MyImageView,msg,点击,自动,graphics,变色,import,android,public
来源： https://www.cnblogs.com/Dmail/p/14092802.html