Android 简单的ToastUtil(位置，布局，时长)

复制以下文件可直接使用：

public class ToastUtil {
    /**
     * show short toast
     *
     * @param msg
     */
    public static void showShortToast(String msg) {
        Toast.makeText(MyApplication.getInstance(), msg, Toast.LENGTH_SHORT).show();
    }

    /**
     * show long toast
     *
     * @param msg
     */
    public static void showLongToast(String msg) {
        Toast.makeText(MyApplication.getInstance(), msg, Toast.LENGTH_LONG).show();
    }

    /**
     * 居中显示 short toast
     *
     * @param msg
     */
    public static void showCenterShortToast(String msg) {
        Toast toast = Toast.makeText(MyApplication.getInstance(), msg, Toast.LENGTH_SHORT);
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.show();
    }


    /**
     * 居中显示 long toast
     *
     * @param msg
     */
    public static void showCenterLongToast(String msg) {
        Toast toast = Toast.makeText(MyApplication.getInstance(), msg, Toast.LENGTH_LONG);

        //Gravity.CENTER  Gravity.LEFT Gravity.RIGHT Gravity.TOP
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.show();
    }

    /**
     * 自定义toast布局，并居中显示
     *
     * @param msg
     */
    public static void showCustomShortToast(String msg) {
        View view = LayoutInflater.from(MyApplication.getInstance()).inflate(R.layout.toast_layout, null);
        TextView textView = view.findViewById(R.id.id_content);
        textView.setText(msg);
        Toast toast = new Toast(MyApplication.getInstance());
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.setView(view);
        toast.show();
    }

    /**
     * 自定义toast 显示的时长
     *
     * @param msg
     */
    public static void showCustomTimeShortToast(String msg, int time) {

        final Toast toast = Toast.makeText(MyApplication.getInstance(), msg, Toast.LENGTH_LONG);
        final Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                toast.show();
            }
        }, 0, 3500);//0秒后执行，LENGTH_LONG时间为3.5s,所以设置3500毫秒后再次执行

        new Timer().schedule(new TimerTask() {
            @Override
            public void run() {
                toast.cancel();
                timer.cancel();
            }
        }, time);//time时间后执行取消taost,取消timer.
    }
}

ToastUtil文件中使用到的MyApplication文件如下：

public class MyApplication extends Application {

    public static MyApplication instance;

    public static MyApplication getInstance() {
        return instance;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        instance = this;
    }
}

自定义Toast布局文件如下:

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    >
    <LinearLayout
        android:layout_width="200dp"
        android:layout_height="110dp"
        android:orientation="vertical"
        android:background="#b0000000"
        >
        <TextView

            android:layout_width="40dp"
            android:layout_height="40dp"
            android:background="@mipmap/icon_success"
            android:layout_gravity="center_horizontal"
            android:layout_marginTop="10dp"
            />

        <TextView
            android:id="@+id/id_content"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text=""
            android:textColor="#fff"
            android:layout_gravity="center_horizontal"
            android:layout_marginTop="20dp"
            />
    </LinearLayout>


</android.support.v7.widget.CardView>

效果如下：
（录屏工具推荐：GifCam 下载地址：http://www.bahraniapps.com/apps/gifcam/gifcam.php）