[移动开发]Android 自定义Toast (样式) 多次点击只显示一次

ToastCustom

工具类

/**
 * 自定义Toast
 */

public class ToastCustom {
    private boolean canceled = true;
    private Handler handler;
    private Toast toast;
    private TimeCount time;
    private TextView toast_content;

    private static ToastCustom instance;

    public static ToastCustom getInstance(Context context) {
        if(instance == null) {
            instance = new ToastCustom(context);
        }

        return instance;
    }

    public ToastCustom(Context context) {
        this(context, new Handler());
    }

    public ToastCustom(Context context, Handler handler) {
        this.handler = handler;

        View layout = LayoutInflater.from(context).inflate(R.layout.toast_layout, null, false);
        toast_content = (TextView) layout.findViewById(R.id.toast_tv);
        if (toast == null) {
            toast = new Toast(context);
        }
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.setDuration(Toast.LENGTH_LONG);
        toast.setView(layout);
    }

    /**
     * @param text     要显示的内容
     * @param duration 显示的时间长
     *                 根据LENGTH_MAX进行判断
     *                 如果不匹配，进行系统显示
     *                 如果匹配，永久显示，直到调用hide()
     */
    public void show(String text, int duration) {
        time = new TimeCount(duration, 1000);//1000是消失渐变时间
        toast_content.setText(text);
        if (canceled) {
            time.start();
            canceled = false;
            showUntilCancel();
        }
    }

    /**
     * 隐藏Toast
     */
    public void hide() {
        if (toast != null) {
            toast.cancel();
        }
        canceled = true;
    }

    private void showUntilCancel() {
        if (canceled) {
            return;
        }
        toast.show();
        handler.postDelayed(new Runnable() {
            public void run() {
                showUntilCancel();
            }
        }, 3000);
    }

    /**
     * 计时器
     */
    class TimeCount extends CountDownTimer {
        public TimeCount(long millisInFuture, long countDownInterval) {
            super(millisInFuture, countDownInterval); // 总时长,计时的时间间隔
        }

        @Override
        public void onFinish() { // 计时完毕时触发
            hide();
        }

        @Override
        public void onTick(long millisUntilFinished) { // 计时过程显示
        }

    }

}

toast_layout.xml

自定义样式

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <LinearLayout
        android:layout_width="280dp"
        android:layout_height="32dp"
        android:orientation="horizontal"
        android:background="@drawable/toast_bg"
        android:layout_centerHorizontal="true"
        android:gravity="center">
        <ImageView
            android:id="@+id/toast_iv"
            android:layout_width="14dp"
            android:layout_height="14dp"
            android:src="@mipmap/toast_yes"/>
        <TextView
            android:id="@+id/toast_tv"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="这是一条消息"
            android:textSize="13sp"
            android:textColor="@color/white"
            android:layout_marginStart="6dp"/>
    </LinearLayout>
</RelativeLayout>

@drawable/toast_bg 

这是Toast 的背景(带圆角)

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <solid android:color = "#FF3D3D3D" />
    <corners
        android:radius="3dp"/>
</shape>

@mipmap/toast_yes?

这是一张图片 , 根据设计图来添加

如何使用

ToastCustom.getInstance(MainActivity.this).show("这是一条消息", 1000);