Question

我试图通过单击按钮将线性布局外部的文本横幅设置为线性布局的屏幕，但是当应用程序启动时，通知文本横幅仍然保留在屏幕上。

我的活动通知横幅文字

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:orientation="vertical"
    android:background="@color/white"
    android:clipChildren="false"
    android:layout_height="match_parent">

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/colorPrimary" >
    <ImageButton
        android:id="@+id/go_back"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="13dp"
        android:layout_alignLeft="@id/title"
        android:layout_alignParentLeft="true"
        android:background="@mipmap/back" />

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="View Product"
        android:textStyle="bold"
        android:textSize="25sp"
        android:layout_centerInParent="true"
        android:paddingBottom="5dp"
        android:textAlignment="center"
        android:layout_marginTop="10dp"
        android:layout_marginBottom="10dp"
        android:textColor="@color/white"/>

    <include android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@id/title"
        android:layout_alignParentRight="true"
        layout="@layout/notification_layout"/>
</RelativeLayout>

<include android:layout_width="match_parent"
    android:layout_height="wrap_content"
    layout="@layout/loader"/>

<include android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignRight="@id/title"
    android:layout_alignParentRight="true"
    layout="@layout/alert_banner"/>
<ImageView
    android:id="@+id/product_image"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="10dp"
    android:layout_marginTop="10dp"
    android:scaleType="fitXY"
    android:adjustViewBounds="true"
    app:srcCompat="@drawable/slider_item_2" />

<TextView
    android:id="@+id/product_name"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Nike Air Mag - Limited Edition Sneakers"
    android:textStyle="bold"
    android:textSize="25sp"
    android:textAlignment="center"
    android:layout_margin="4dp"
    android:textColor="@color/print"/>

<Button
    android:id="@+id/add_to_cart"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:drawableRight="@mipmap/add"
    android:layout_marginLeft="25dp"
    android:layout_marginRight="25dp"
    android:layout_marginTop="30dp"
    android:textColor="@color/white"
    android:textStyle="bold"
    android:textSize="20sp"
    android:layout_marginBottom="10dp"
    android:background="@drawable/button_rounded_corners"
    android:paddingRight="10dp"
    android:text="Add to Cart" />

在我的java类中，我使用下面的

启动动画

  //This is done when initializing the view
LinearLayout.LayoutParams params = (LinearLayout.LayoutParams)
            product_image.getLayoutParams();
    params.setMargins(-1 * alert_info.getWidth(), 0, 0, 0);
    alert_info.setLayoutParams(params);

//when the button is clicked
ObjectAnimator animX = ObjectAnimator.ofFloat(alert_info,
                    View.TRANSLATION_X, -1* alert_info.getWidth(), 0);
            animX.setDuration(500);
            // alert_info.setVisibility(View.VISIBLE);
            animX.start();

但它不起作用，当应用程序启动时视图仍然保留在屏幕上

Answer 1

以下是视图滑动动画的代码。

inFromRightAnimation

str

outToLeftAnimation

private Animation inFromRightAnimation() {
    Animation inFromRight = new TranslateAnimation( Animation.RELATIVE_TO_PARENT, +1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f);
    inFromRight.setDuration(500);
    inFromRight.setInterpolator(new AccelerateInterpolator()); 
    return inFromRight; 
}

inFromLeftAnimation

private Animation outToLeftAnimation() {
    Animation outtoLeft = new TranslateAnimation( Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, -1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f);
    outtoLeft.setDuration(500);
    outtoLeft.setInterpolator(new AccelerateInterpolator());
    return outtoLeft;
}

outToRightAnimation

private Animation inFromLeftAnimation() {
    Animation inFromLeft = new TranslateAnimation( Animation.RELATIVE_TO_PARENT, -1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f);
    inFromLeft.setDuration(500);
    inFromLeft.setInterpolator(new AccelerateInterpolator());
    return inFromLeft;
}

现在在视图上启动动画

private Animation outToRightAnimation() {
    Animation outtoRight = new TranslateAnimation( Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, +1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f);
    outtoRight.setDuration(500);
    outtoRight.setInterpolator(new AccelerateInterpolator());
    return outtoRight;
}

动画横幅从左到右滑动（屏幕外到屏幕）

1 个答案: