自定义通用Toast

这是一个通用的Toast提示消息框

/**
 * 这是一个通用的Toast提示消息框
 * 
 * @author wangll
 * 
 */
public class UtilToast {
    //显示时间
    public static final int LENGTH_SHORT = 600;
    public static final int LENGTH_LONG = 1200;
    //Toast背景，这里只写最常见的灰色半透明
    public static final Style STYLE_ERROR = new Style(LENGTH_LONG, R.drawable.toast_shap);
    public static final Style STYLE_ALERT = new Style(LENGTH_LONG, R.drawable.toast_alert);
    public static final Style STYLE_CONFIRM = new Style(LENGTH_SHORT, R.drawable.toast_confirm);
    public static final Style STYLE_INFO = new Style(LENGTH_SHORT, R.drawable.toast_info);
    private static Toast toast;

    /**
     * 显示一个提示框，一般用于状态提示，如成功后，显示什么，失败后显示什么
     * 
     * @param ctx 上下文
     * @param message 消息内容
     * @param isSucc 是否成功
     */
    public static void show(Context ctx, String message, Style style) {
        if (null == ctx)
            return;

        LayoutInflater inflate = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View v = inflate.inflate(R.layout.layout_toast, null);
        v.setBackgroundResource(style.background);

        TextView tv = (TextView) v.findViewById(android.R.id.message);
        tv.setText(message);
        if (toast != null)
        {
            toast.cancel();
        }
        toast = new Toast(ctx);
        toast.setGravity(Gravity.BOTTOM, 0, Common.getPixels(ctx, 100));
        toast.setDuration(style.duration);
        toast.setView(v);
        toast.show();
    }

    public static class Style {

        private final int duration;
        private final int background;

        public Style(int duration, int resId) {
            this.duration = duration;
            this.background = resId;
        }

        public int getDuration() {
            return duration;
        }

        public int getBackground() {
            return background;
        }

        @Override
        public boolean equals(Object o) {
            if (!(o instanceof UtilToast.Style)) {
                return false;
            }
            Style style = (Style) o;
            return style.duration == duration && style.background == background;
        }

    }
    public static void cancelToast()
    {
        if (toast != null)
        {
            toast.cancel();
        }
    }
}

接着写Toast背景（ R.drawable.toast_shap），自定义圆角灰色半透明背景

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
    <solid android:color="#80000000"/>
    <stroke android:width="1dip" />
    <corners android:radius="90dp"/>
    <padding android:left="10dp"
        android:top="10dp"
        android:right="10dp"
        android:bottom="10dp"/>

</shape>

引用：

UtilToast.show(this, “显示的内容”, UtilToast.STYLE_ALERT);