Question

在ImageView内部居中放置图像，该图像将宽度和高度设置为match_parent

ImageView

<ImageView
    android:adjustViewBounds="true"
    android:id="@+id/iv_Image"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center"
    android:scaleType="matrix"
    android:src="@drawable/test_image" />

由于使用了缩放和触摸事件，

scaleType设置为“矩阵”。

如何在ImageView中居中放置图像。

Answer 1

首先获取设备的宽度和高度

...
@Controller("/**")
public class MainController {

  @Get(value="/path1")
  public HttpResponse handlePath1Get(HttpRequest<?> request) {

    .. do something ..
  }

  @Get(value="/path1/action1")
  public HttpResponse handlePath1Action1(HttpRequest<?> request) {

    .. do something else ..
  }
}

使用image_width计算ImageView CenterX

<b:skin>

    .post1{
        background-color: black;
        color: white;
        margin: 20px;
        padding: 20px;
        width: 350px;
        float:right
    } 
    .post2{
        background-color: black;
        color: white;
        margin: 20px;
        padding: 20px;
        width: 350px;
        float:left
    }
</b:skin>

<div class="content-wrapper">
    <div class="container">
        <div class="row">
            <div class="col-md-9">

                <div class="post-wrapper">
                    <div class="post1"> 
                        <b:section class='main' id='main' showaddelement='no'>
                            <b:widget id='Blog1' locked='true' title='Blog Posts' type='Blog' version='1'/>
                        </b:section>
                    </div>
                    <div class="post2">
                        <b:section class='main' id='main1' showaddelement='no'>
                            <b:widget id='Blog2' locked='true' title='Blog Posts' type='Blog' version='2'/>
                        </b:section>
                    </div>
                </div>
            </div>

使用image_height计算ImageView CenterY

DisplayMetrics displayMetrics = new DisplayMetrics();
float dpHeight = displayMetrics.heightPixels / displayMetrics.density;
float dpWidth = displayMetrics.widthPixels / displayMetrics.density;

将“新矩阵”设置为“图像”

float imageCenterX = (displayMetrics.widthPixels - image_width) / 2;

Android将Image Inside放在match_parent中

1 个答案: