我在 Scrollview 中有一個 ImageView，下面是我的片段代碼，我需要使影像全屏顯示或在用戶單擊影像時更改影像視圖的寬度和高度，請幫助我如何實作或任何其他更好的解決方案。
ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:background="@color/white"
android:gravity="center_horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="@ id/htab_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways|snap"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
<ImageView
android:id="@ id/product_image"
android:layout_width="match_parent"
android:layout_height="192dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="3dp"
android:adjustViewBounds="true"
android:gravity="center_horizontal"
android:scaleType="center" />
<TextView
android:id="@ id/product_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_margin="5dp"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"
android:freezesText="true"
android:gravity="center_horizontal"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:singleLine="true"
android:textColor="@color/holo_gray_dark"
android:textSize="20sp"
android:textStyle="bold" />
<TextView
android:id="@ id/category_discount"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_margin="5dp"
android:background="@color/white"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"
android:freezesText="true"
android:gravity="center_horizontal"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:singleLine="true"
android:textColor="@color/holo_gray_dark"
android:textSize="20sp"
android:textStyle="bold" />
<TextView
android:id="@ id/product_description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@ id/product_name"
android:layout_gravity="left"
android:layout_marginBottom="5dp"
android:layout_marginTop="5dp"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"
android:freezesText="true"
android:textColor="@android:color/background_dark"
android:textSize="16sp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_margin="5dp"
android:gravity="center"
android:orientation="horizontal">
<TextView
android:id="@ id/remove_item"
android:layout_width="45dp"
android:layout_height="45dp"
android:layout_gravity="center_vertical|center_horizontal"
android:background="@color/red"
android:gravity="center_vertical|center_horizontal"
android:text="-"
android:textColor="@color/white"
android:textSize="20sp"
android:textStyle="bold" />
<TextView
android:id="@ id/iteam_amount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"
android:freezesText="true"
android:gravity="center"
android:marqueeRepeatLimit="marquee_forever"
android:minWidth="70dp"
android:scrollHorizontally="true"
android:singleLine="true"
android:text="0"
android:textColor="@android:color/background_dark"
android:textSize="30sp" />
<TextView
android:id="@ id/add_item"
android:layout_width="45dp"
android:layout_height="45dp"
android:layout_gravity="center_vertical|center_horizontal"
android:background="@color/holo_green_light"
android:gravity="center_vertical|center_horizontal"
android:text=" "
android:textColor="@color/white"
android:textSize="30sp"
android:textStyle="bold" />
</LinearLayout>
<TextView
android:id="@ id/hot_offers"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_gravity="center_horizontal"
android:layout_marginTop="15dp"
android:ellipsize="marquee"
android:gravity="center_horizontal"
android:text="@string/similar_product"
android:textColor="#000"
android:textSize="20sp" />
<com.hitesh_sahu.retailapp.view.customview.ClickableViewPager
android:id="@ id/similar_products_pager"
android:layout_width="match_parent"
android:layout_height="280dp"
android:layout_below="@ id/hot_offers"
android:layout_marginTop="2dp"
android:visibility="visible" />
<TextView
android:id="@ id/best_value"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_gravity="center_horizontal"
android:layout_marginTop="2dp"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"
android:freezesText="true"
android:gravity="center_horizontal"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:text="Top Selling"
android:textColor="#000"
android:textSize="20sp" />
<com.hitesh_sahu.retailapp.view.customview.ClickableViewPager
android:id="@ id/top_selleing_pager"
android:layout_width="match_parent"
android:layout_height="280dp"
android:layout_below="@ id/best_value"
android:layout_marginTop="2dp"
android:visibility="visible" />
</LinearLayout>
</ScrollView>
這是我的布局
這是我班上的 onclick 偵聽器。請幫忙。我發現單擊時影像大小會發生變化，但影像視圖尺寸沒有變化，如何實作這一點/如何使影像全屏
itemImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(isImageFitToScreen) {
isImageFitToScreen=false;
ScrollView.LayoutParams layoutParams = new
ScrollView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 192);
itemImage.setLayoutParams(layoutParams);
itemImage.setAdjustViewBounds(true);
}else{
isImageFitToScreen=true;
ScrollView.LayoutParams layoutParams = new
ScrollView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 500);
itemImage.setLayoutParams(layoutParams);
}
}
});
uj5u.com熱心網友回復：
看看android:adjustViewBounds。即使您正在更改ImageView的大小，此屬性也會將其更改回來。我認為你可以洗掉它。
此外， layoutparams 中的尺寸維度是像素而不是dp。你對待它就像是dp。
轉載請註明出處，本文鏈接：https://www.uj5u.com/qukuanlian/363811.html