Android自定义Toast

核心代码：

package com.huatec.myapplication;

import android.content.Context;
import android.graphics.Bitmap;
import android.support.annotation.ColorInt;
import android.support.annotation.DrawableRes;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

/**
 * 自定义吐司
 */
public final class MyToast {

    public final Toast toast;//Toast对象
    public final View view;//Toast的UI效果
    public final ImageView icon;//图标
    public final TextView message;//内容

    public MyToast(Context context) {
        toast = new Toast(context);
        view = LayoutInflater.from(context).inflate(R.layout.toast_layout, null);
        icon = view.findViewById(R.id.toast_icon);
        message = view.findViewById(R.id.toast_message);
    }

    /**
     * 显示
     */
    public void show() {
        this.toast.show();
    }

    public static class Builder {
        private Bitmap icon;//图标图片
        //        private int iconID = R.mipmap.ic_launcher;//图标资源ID
        private int iconID;//
        private String message;//内容
        private int backgroundColor = 0x56000000;//背景颜色
        private Context mContext;//上下文
        private int duration = Toast.LENGTH_SHORT;//设置时间
        private MyToast mine;
        private int gravity = Gravity.NO_GRAVITY;//设置位置
        private int offsetX = 0;//设置偏移度X
        private int offsetY = 0;//设置偏移度Y
        private boolean isShowIcon;//是否显示图标

        public Builder(Context context) {
            this.mContext = context;
        }

        /**
         * 设置ICON
         *
         * @param bitmap
         * @return
         */
        public Builder setIcon(Bitmap bitmap) {
            this.icon = bitmap;
            return this;
        }

        public Builder setIcon(@DrawableRes int resId) {
            this.iconID = resId;
            return this;
        }

        public Builder showIcon(boolean showIcon) {
            this.isShowIcon = showIcon;
            return this;
        }

        /**
         * 设置内容
         */
        public Builder setMessage(String hintMessage) {
            this.message = hintMessage;
            return this;
        }

        /**
         * 设置吐司时长
         */
        public Builder setDuration(int type) {
            this.duration = type;
            return this;
        }

        /**
         * 设置背景
         */
        public Builder setBackgroundColor(@ColorInt int color) {
            this.backgroundColor = color;
            return this;
        }

        /**
         * 设置位置
         */
        public Builder setGravity(int gravity) {
            this.gravity = gravity;
            return this;
        }

        /**
         * 偏移量
         */
        public Builder setOffsetX(int x) {
            this.offsetX = x;
            return this;
        }

        public Builder setOffsetY(int y) {
            this.offsetY = y;
            return this;
        }

        /**
         * 创建MyToast对象
         */
        public MyToast build() {
            if (null == mine) {
                mine = new MyToast(mContext);//创建对象
            }
            if (isShowIcon) {
                //隐藏图标
                mine.icon.setVisibility(View.VISIBLE);
                if (null != icon) {//判断是否显示图标
                    mine.icon.setImageBitmap(icon);//设置图片
                } else if (iconID != 0) {
                    //设置图片
                    mine.icon.setBackgroundResource(iconID);
                }
            }
            if (!message.isEmpty()) {//判断内容是否为空
                mine.message.setText(message);
            } else {
                mine.message.setText("");
            }
            //设置背景
            mine.view.setBackground(new BackgroundDrawable(backgroundColor, mContext));
            //mine.message.setTextColor(Color.BLACK);//设置字体颜色
            mine.toast.setDuration(duration);//设置时长
            mine.toast.setView(mine.view);//添加自定义效果
            mine.toast.setGravity(gravity, offsetX, offsetY);//设置偏移量
            return mine;
        }
    }

}

toast_layout.xml布局文件：

BackgroundDrawable.java背景：

package com.huatec.myapplication;

import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.annotation.ColorInt;
import android.util.TypedValue;


public class BackgroundDrawable extends Drawable{

    private Paint paint;
    private Context mContext;

    public BackgroundDrawable(@ColorInt int color,Context context) {
        mContext = context.getApplicationContext();
        paint = new Paint(Paint.ANTI_ALIAS_FLAG);
        paint.setColor(color);
        paint.setDither(true);
        paint.setStyle(Paint.Style.FILL);
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    @Override
    public void draw(Canvas canvas) {
        int width = canvas.getWidth();
        int height = canvas.getHeight();
        canvas.drawRoundRect(0,0,width,height,dp2px(20),dp2px(20),paint);
    }

    @Override
    public void setAlpha(int alpha) {
        paint.setAlpha(alpha);
    }

    @Override
    public void setColorFilter(ColorFilter colorFilter) {
        paint.setColorFilter(colorFilter);
    }

    @Override
    public int getOpacity() {
        return PixelFormat.TRANSLUCENT;
    }

    private int dp2px(int values){
        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,values,
                mContext.getResources().getDisplayMetrics());
    }
}

使用Toast：

package com.huatec.myapplication;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    private Button hintToast1;
    private Button hintToast2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        hintToast1 = findViewById(R.id.hint_toast);
        hintToast2 = findViewById(R.id.hint_toast2);

        //按钮1
        hintToast1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                new MyToast.Builder(MainActivity.this)
                        .setMessage("你好吗？")//设置提示文字
                        .setBackgroundColor(0x88ff4587)//设置背景颜色
                        .setGravity(Gravity.CENTER)//设置吐司位置
                        .build()//创建吐司
                        .show();
            }
        });

        //按钮2
        hintToast2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                new MyToast.Builder(MainActivity.this)
                        .setMessage("你好吗？")
                        .setBackgroundColor(0x88ff4587)
                        .setGravity(Gravity.CENTER)
                        .setIcon(R.mipmap.ic_launcher)//设置图标
                        .showIcon(true)//是否显示图标
                        .build()
                        .show();
            }
        });

    }
}

效果图：

2018-05-20 18_42_30.gif

源码地址：https://github.com/280357392/CustomToast