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我正在尝试开发计算器应用程序并使用GridLayout来组织按钮。当屏幕尺寸大于5.5英寸时,它可以很好地工作,但是当我把它缩小到5.5英寸以下时,所有的按钮都会掉到外面,变得很奇怪。我重视main_activity的xml文件:Android Studio:当缩小屏幕尺寸时,按钮会移出屏幕
<?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="@android:color/black"
tools:context="com.example.songwei.calculator.MainActivity">
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/GridLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginBottom="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="8dp"
android:background="@android:color/black"
android:columnCount="4"
android:orientation="horizontal"
android:rowCount="6"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="@+id/display"
android:layout_height="wrap_content"
android:layout_columnSpan="4"
android:layout_columnWeight="1"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_rowWeight="1"
android:text="0"
android:textAlignment="viewEnd"
android:textColor="@android:color/white"
android:textSize="50sp" />
<Button
android:id="@+id/btn_clear"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="@android:color/darker_gray"
android:text="AC"
android:textSize="30sp" />
<Button
android:id="@+id/btn_root"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="@android:color/darker_gray"
android:text="√"
android:textSize="30sp" />
<Button
android:id="@+id/btn_delete"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="@android:color/darker_gray"
android:text="del"
android:textSize="30sp" />
<Button
android:id="@+id/btn_division"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="@android:color/holo_orange_light"
android:text="÷"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_7"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="7"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_8"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="8"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_9"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="9"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_multiply"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="@android:color/holo_orange_light"
android:text="×"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_4"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="4"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_5"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="5"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_6"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="6"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_subtraction"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="@android:color/holo_orange_light"
android:text="-"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_3"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="3"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_2"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="2"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_1"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="1"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_add"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="@android:color/holo_orange_light"
android:text="+"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_0"
android:layout_columnSpan="2"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="0"
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_dot"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="#696969"
android:text="."
android:textColor="@android:color/white"
android:textSize="30sp" />
<Button
android:id="@+id/btn_equal"
android:layout_columnWeight="1"
android:layout_rowWeight="1"
android:backgroundTint="@android:color/holo_orange_light"
android:text="="
android:textColor="@android:color/white"
android:textSize="30sp" />
</GridLayout>
</android.support.constraint.ConstraintLayout>
,什么是按钮的迷你尺寸,并没有影响?