android - 将图像从 ImageView 设置为 Dialog

Question

我将一个字符串 url 从 fragment A 传递到 B，并加载到 imageView

if (obj?.signature_image?.url != null) {
            Glide.with(activity)
                .load(obj?.signature_image?.url.toString())
                .into(imgSignature)
        }

当点击imgSinature时，会弹出自定义对话框，我想在对话框中设置图片。我怎样才能实现？

signDialog = Util().dialogSignature(getActivity())

 imgSignature.setOnClickListener {
            signDialog.show()
            if (obj?.signature_image?.url != null) {
                signDialog.relativeLayout2.addView(obj?.signature_image?.url)
            }
        }

效用

fun dialogSignature(context: Context?):Dialog{

        var dialog = Dialog(context)
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE)
        dialog.setContentView(R.layout.dialog_signature)
        dialog.getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT);
        return dialog

    }

dialog_signature

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
                                             xmlns:app="http://schemas.android.com/apk/res-auto"
                                             xmlns:tools="http://schemas.android.com/tools"
                                             android:id="@+id/relativeLayout1"
                                             android:layout_width="match_parent"
                                             android:layout_height="230dp"
                                             android:orientation="vertical"
                                             android:background="@android:color/white">

    <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content"
                  android:background="@color/colorPrimaryShadow"
                  android:orientation="horizontal"
                  android:id="@+id/linearLayout1"
                  android:gravity="center"
                  android:layout_marginBottom="2dp" app:layout_constraintEnd_toEndOf="parent"
                  app:layout_constraintBottom_toTopOf="@+id/relativeLayout2" app:layout_constraintTop_toTopOf="parent"
                  app:layout_constraintStart_toStartOf="parent">

        <TextView
                android:layout_marginLeft="10dp"
                android:layout_weight="0.4"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:text="Place Signature"
                android:textSize="17sp"
                android:layout_gravity="right"/>

        <TextView android:layout_width="wrap_content" android:layout_height="wrap_content"
                  android:layout_marginRight="10dp"
                  android:id="@+id/doneTxt"
                  android:text="Done"
                  android:textColor="@color/colorDarkBlue"/>

    </LinearLayout>

    <RelativeLayout android:layout_width="0dp" android:layout_height="0dp"
                    android:id="@+id/relativeLayout2"
                    android:background="@color/colorWhite"
                    app:layout_constraintTop_toBottomOf="@+id/linearLayout1" app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintStart_toStartOf="parent" app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintHorizontal_bias="1.0">
    </RelativeLayout>


    <TextView android:layout_width="wrap_content" android:layout_height="wrap_content"
              android:layout_below="@+id/linearLayout1"
              android:textColor="@color/colorDarkBlue"
              android:text="Clear" app:layout_constraintStart_toStartOf="parent"
              android:layout_marginStart="8dp" app:layout_constraintEnd_toEndOf="parent"
              android:layout_marginEnd="8dp" app:layout_constraintHorizontal_bias="1.0"
              android:layout_marginBottom="16dp" app:layout_constraintBottom_toBottomOf="parent"
              android:id="@+id/clearTxt"/>

</android.support.constraint.ConstraintLayout>

此行 signDialog.relativeLayout2.addView(obj?.signature_image?.url) 错误

Type mismatch. Required: View! Found: String?

真的很烦....

It looks like your post is mostly code; please add some more details.

Answer 1

您试图将 url 字符串添加到错误的 View 中。 在您的 relativeLayout2 中添加一个 ImageView 并使用 Glide 加载您的图片 url

<RelativeLayout 
     android:layout_width="0dp" 
     android:layout_height="0dp"
     android:id="@+id/relativeLayout2"
     android:background="@color/colorWhite"
     app:layout_constraintTop_toBottomOf="@+id/linearLayout1" 
     app:layout_constraintEnd_toEndOf="parent"
     app:layout_constraintStart_toStartOf="parent" 
     app:layout_constraintBottom_toBottomOf="parent"
     app:layout_constraintHorizontal_bias="1.0">

    <ImageView
        android:id="@+id/your_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
</RelativeLayout>

在你的onClick

imgSignature.setOnClickListener {
    ...
    Glide.with(activity)
        .load(obj?.signature_image?.url.toString())
        .into(signDialog.your_image)
}