Uri 图像未显示在 ScrollView 中
Uri Image not displayed inside ScrollView
您好，我正在使用 URI 和 Picasso 库显示存储在我的 phone 中的图像，当我在没有 ScrollView 的新 Activity 中执行此操作时它可以正确显示，但是当我在我的原始文件中执行相同操作时activity 包含两个带有线性布局和滚动视图的卡片视图的布局不会显示图像，但会显示用应用程序的原色着色的空白图像。
这是我的 TryActivity 代码，一切正常：
<FrameLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.TryActivity">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="370dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:padding="10dp"
app:cardCornerRadius="10dp"
app:cardElevation="5dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="12dp"
android:paddingTop="8dp">
<TextView
android:id="@+id/time_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:text="@string/time_const"
android:textColor="@android:color/black"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.24"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/pic_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/darker_gray"
android:textStyle="bold"
app:layout_constraintBaseline_toBaselineOf="@+id/time_const"
app:layout_constraintStart_toEndOf="@+id/time_const" />
<ImageView
android:id="@+id/camera_pic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:tint="@color/colorPrimary"
android:contentDescription="@string/app_name"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="@drawable/camera" />
<ImageView
android:id="@+id/click_click"
android:layout_width="match_parent"
android:layout_height="250dp"
android:maxHeight="250dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="16dp"
android:contentDescription="@string/app_name"
app:layout_constraintBottom_toTopOf="@+id/camera_pic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/time_const"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
</FrameLayout>
这是我的 Java 代码 activity:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_try);
ImageView imageView = findViewById(R.id.click_click);
Picasso.get()
.load("file:/storage/emulated/0/Pictures/JPEG_20190330_190925_8486610829519670776.jpg")
.into(imageView);
}
但是如果我尝试在我的原始 activity 中做同样的事情，它不起作用：
这是我的 xml 布局：
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
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:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:fitsSystemWindows="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="16dp"
android:paddingBottom="32dp"
tools:context=".ui.DetailsActivity"
tools:showIn="@layout/activity_details">
<androidx.cardview.widget.CardView
android:id="@+id/cardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
app:cardCornerRadius="10dp"
app:cardElevation="5dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="12dp"
android:paddingTop="8dp">
<TextView
android:id="@+id/p_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:textAppearance="?android:textAppearanceLarge"
android:textColor="@color/colorPrimary"
android:textStyle="italic|bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/p_occupation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="5dp"
android:layout_marginEnd="8dp"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/darker_gray"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/p_name" />
<TextView
android:id="@+id/loc_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:text="@string/loc_const"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/holo_red_dark"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.14"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/p_occupation" />
<TextView
android:id="@+id/p_city"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/black"
app:layout_constraintBaseline_toBaselineOf="@+id/loc_const"
app:layout_constraintStart_toEndOf="@+id/loc_const" />
<TextView
android:id="@+id/sal_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:text="@string/sal_const"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/holo_red_dark"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="@+id/loc_const"
app:layout_constraintTop_toBottomOf="@+id/loc_const" />
<TextView
android:id="@+id/p_sal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/black"
app:layout_constraintBaseline_toBaselineOf="@+id/sal_const"
app:layout_constraintStart_toStartOf="@+id/p_city" />
<TextView
android:id="@+id/date_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:text="@string/date_const"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/holo_red_dark"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="@+id/sal_const"
app:layout_constraintTop_toBottomOf="@+id/sal_const" />
<TextView
android:id="@+id/p_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/black"
app:layout_constraintBaseline_toBaselineOf="@+id/date_const"
app:layout_constraintStart_toStartOf="@+id/p_sal" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="370dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:padding="10dp"
app:cardCornerRadius="10dp"
app:cardElevation="5dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="12dp"
android:paddingTop="8dp">
<TextView
android:id="@+id/time_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:text="@string/time_const"
android:textColor="@android:color/black"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.24"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/pic_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/darker_gray"
android:textStyle="bold"
app:layout_constraintBaseline_toBaselineOf="@+id/time_const"
app:layout_constraintStart_toEndOf="@+id/time_const" />
<ImageView
android:id="@+id/camera_pic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:tint="@color/colorPrimary"
android:contentDescription="@string/app_name"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="@drawable/camera" />
<ImageView
android:id="@+id/clicked_pic"
android:layout_width="match_parent"
android:layout_height="250dp"
android:maxHeight="250dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="16dp"
android:contentDescription="@string/app_name"
app:layout_constraintBottom_toTopOf="@+id/camera_pic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/time_const"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>
</ScrollView>
这里是没有显示图片的截图：
我在这里犯了一个愚蠢的错误，我在应用程序图标图像中设置了点击图像，这就是为什么它被拉伸为应用程序的原色。这从我的一天开始就花了几个小时！！
您好，我正在使用 URI 和 Picasso 库显示存储在我的 phone 中的图像，当我在没有 ScrollView 的新 Activity 中执行此操作时它可以正确显示，但是当我在我的原始文件中执行相同操作时activity 包含两个带有线性布局和滚动视图的卡片视图的布局不会显示图像，但会显示用应用程序的原色着色的空白图像。
这是我的 TryActivity 代码，一切正常：
<FrameLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.TryActivity">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="370dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:padding="10dp"
app:cardCornerRadius="10dp"
app:cardElevation="5dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="12dp"
android:paddingTop="8dp">
<TextView
android:id="@+id/time_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:text="@string/time_const"
android:textColor="@android:color/black"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.24"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/pic_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/darker_gray"
android:textStyle="bold"
app:layout_constraintBaseline_toBaselineOf="@+id/time_const"
app:layout_constraintStart_toEndOf="@+id/time_const" />
<ImageView
android:id="@+id/camera_pic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:tint="@color/colorPrimary"
android:contentDescription="@string/app_name"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="@drawable/camera" />
<ImageView
android:id="@+id/click_click"
android:layout_width="match_parent"
android:layout_height="250dp"
android:maxHeight="250dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="16dp"
android:contentDescription="@string/app_name"
app:layout_constraintBottom_toTopOf="@+id/camera_pic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/time_const"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
</FrameLayout>
这是我的 Java 代码 activity:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_try);
ImageView imageView = findViewById(R.id.click_click);
Picasso.get()
.load("file:/storage/emulated/0/Pictures/JPEG_20190330_190925_8486610829519670776.jpg")
.into(imageView);
}
但是如果我尝试在我的原始 activity 中做同样的事情，它不起作用：
这是我的 xml 布局：
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
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:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:fitsSystemWindows="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="16dp"
android:paddingBottom="32dp"
tools:context=".ui.DetailsActivity"
tools:showIn="@layout/activity_details">
<androidx.cardview.widget.CardView
android:id="@+id/cardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
app:cardCornerRadius="10dp"
app:cardElevation="5dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="12dp"
android:paddingTop="8dp">
<TextView
android:id="@+id/p_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:textAppearance="?android:textAppearanceLarge"
android:textColor="@color/colorPrimary"
android:textStyle="italic|bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/p_occupation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="5dp"
android:layout_marginEnd="8dp"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/darker_gray"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/p_name" />
<TextView
android:id="@+id/loc_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:text="@string/loc_const"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/holo_red_dark"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.14"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/p_occupation" />
<TextView
android:id="@+id/p_city"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/black"
app:layout_constraintBaseline_toBaselineOf="@+id/loc_const"
app:layout_constraintStart_toEndOf="@+id/loc_const" />
<TextView
android:id="@+id/sal_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:text="@string/sal_const"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/holo_red_dark"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="@+id/loc_const"
app:layout_constraintTop_toBottomOf="@+id/loc_const" />
<TextView
android:id="@+id/p_sal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/black"
app:layout_constraintBaseline_toBaselineOf="@+id/sal_const"
app:layout_constraintStart_toStartOf="@+id/p_city" />
<TextView
android:id="@+id/date_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:text="@string/date_const"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/holo_red_dark"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="@+id/sal_const"
app:layout_constraintTop_toBottomOf="@+id/sal_const" />
<TextView
android:id="@+id/p_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/black"
app:layout_constraintBaseline_toBaselineOf="@+id/date_const"
app:layout_constraintStart_toStartOf="@+id/p_sal" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="370dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:padding="10dp"
app:cardCornerRadius="10dp"
app:cardElevation="5dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="12dp"
android:paddingTop="8dp">
<TextView
android:id="@+id/time_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:text="@string/time_const"
android:textColor="@android:color/black"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.24"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/pic_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/darker_gray"
android:textStyle="bold"
app:layout_constraintBaseline_toBaselineOf="@+id/time_const"
app:layout_constraintStart_toEndOf="@+id/time_const" />
<ImageView
android:id="@+id/camera_pic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:tint="@color/colorPrimary"
android:contentDescription="@string/app_name"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="@drawable/camera" />
<ImageView
android:id="@+id/clicked_pic"
android:layout_width="match_parent"
android:layout_height="250dp"
android:maxHeight="250dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="16dp"
android:contentDescription="@string/app_name"
app:layout_constraintBottom_toTopOf="@+id/camera_pic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/time_const"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>
</ScrollView>
这里是没有显示图片的截图：
我在这里犯了一个愚蠢的错误，我在应用程序图标图像中设置了点击图像，这就是为什么它被拉伸为应用程序的原色。这从我的一天开始就花了几个小时！！