[英]how can i get the value of textview1 into textview2 after click the button?
[英]How in this example, can I have TextView1 on top of Textview2?
我有兩個FloatingActionButtons
一個限制在父母的左邊,
右邊的另一個
如何更改以下布局以實現:
擁有2個TextView,它們既占據了按鈕之間的所有可用寬度,又占據了可用高度的一半,彼此靠攏?
<?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="wrap_content">
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab_edit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:backgroundTint="@color/colorPrimary"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
app:fabSize="mini"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ic_edit_w"
tools:layout_editor_absoluteX="41dp"
tools:layout_editor_absoluteY="16dp" />
<TextView
android:id="@+id/txt_top"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:padding="8dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@id/fab_edit"
android:text="top"/>
<TextView
android:id="@+id/txt_btm"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:padding="8dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="@id/fab_play"
android:text="bottom"/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab_play"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
app:fabSize="mini"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
app:srcCompat="@drawable/ic_play_w"
tools:layout_editor_absoluteX="220dp"
tools:layout_editor_absoluteY="8dp" />
</android.support.constraint.ConstraintLayout>
請嘗試以下操作:
<?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="wrap_content">
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab_edit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:backgroundTint="@color/colorPrimary"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
app:fabSize="mini"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteX="41dp"
tools:layout_editor_absoluteY="16dp" />
<TextView
android:id="@+id/txt_top"
android:layout_width="0dp"
android:layout_height="match_parent"
android:padding="8dp"
android:gravity="center"
app:layout_constraintBottom_toTopOf="@id/txt_btm"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintStart_toEndOf="@id/fab_edit"
app:layout_constraintEnd_toStartOf="@id/fab_play"
android:text="top"/>
<TextView
android:id="@+id/txt_btm"
android:layout_width="0dp"
android:layout_height="match_parent"
android:padding="8dp"
android:gravity="center"
app:layout_constraintTop_toBottomOf="@id/txt_top"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@id/fab_edit"
app:layout_constraintEnd_toStartOf="@id/fab_play"
android:text="bottom"/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab_play"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
app:fabSize="mini"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
tools:layout_editor_absoluteX="220dp"
tools:layout_editor_absoluteY="8dp" />
</android.support.constraint.ConstraintLayout>
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