我正在开发一个Android活动,我想要一个标题,并在标题下的内容。我想要将背景图像放在内容上,而不是标题上。Android - 限制布局内另一个约束布局背景不显示
从图片中可以看到我的形象也streched在屏幕上,这是我不希望的标识部。
这里是我当前布局的XML:
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/background_11"
tools:context=".login.LoginActivity"
>
<ImageView
android:id="@+id/logo"
android:layout_width="381dp"
android:layout_height="156dp"
android:src="@drawable/logo"
tools:ignore="ContentDescription"
app:layout_constraintTop_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:layout_marginTop="-480dp"
android:layout_marginRight="10dp"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:layout_marginEnd="10dp"
app:layout_constraintHorizontal_bias="0.47" />
<ImageView
android:id="@+id/emptyImage"
android:layout_width="384dp"
android:layout_height="445dp"
android:layout_marginBottom="0dp"
android:layout_marginRight="0dp"
android:layout_marginTop="0dp"
android:background="@color/TICK_BACKGROUND"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/logo"
app:layout_constraintVertical_bias="0.0"
app:srcCompat="@drawable/empty" />
<EditText
android:id="@+id/login_usernameTextField"
android:layout_width="291dp"
android:layout_height="63dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="80dp"
android:background="@drawable/rounded_text_edit_shape"
android:ems="10"
android:hint="Username"
android:inputType="textPersonName"
android:textColor="@color/INPUT_TEXT_COLOR"
android:textColorHint="@color/iron"
android:textCursorDrawable="@null"
app:layout_constraintHorizontal_bias="0.506"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/logo"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp" />
<EditText
android:id="@+id/login_passwordTextField"
android:layout_width="291dp"
android:layout_height="63dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="-38dp"
android:background="@drawable/rounded_text_edit_shape"
android:ems="10"
android:hint="Password"
android:textCursorDrawable="@null"
android:inputType="textPassword"
android:textColor="@color/INPUT_TEXT_COLOR"
android:textColorHint="@color/iron"
app:layout_constraintHorizontal_bias="0.506"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/login_usernameTextField"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp" />
<Button
android:id="@+id/login_loginButton"
android:onClick="loginButtonClick"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="30dp"
android:background="@drawable/rounded_button_shape"
android:text="Log In"
android:textColor="@color/white"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/login_passwordTextField"
app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginBottom="8dp"
app:layout_constraintVertical_bias="0.28"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp" />
</android.support.constraint.ConstraintLayout>
我想过做父母布局和布局内添加页眉和包含内容的另一布局。然后设置内容布局内的背景像这样的:android:background="@drawable/background_11"
这里是我试过的代码:
<?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:layout_width="match_parent" android:layout_height="match_parent">
<ImageView
android:id="@+id/logo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
app:srcCompat="@drawable/logo_2"
app:layout_constraintTop_toTopOf="parent"
android:layout_marginTop="-1dp"
android:layout_marginLeft="0dp"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginRight="8dp"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintHorizontal_bias="0.0" />
<android.support.constraint.ConstraintLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:background="@drawable/background_11"
app:layout_constraintTop_toBottomOf="@id/logo"
android:layout_marginLeft="8dp"
app:layout_constraintLeft_toLeftOf="parent">
</android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>
酷,男人! Wiil也尝试 – Sergey