我創(chuàng)建了一個(gè)數(shù)字鍵盤，輸入密碼即可進(jìn)入另一個(gè)活動，它工作得很好，但布局很混亂。在我的屏幕截圖中，您可以看到它是一個(gè)簡單的數(shù)字鍵盤，但我的按鈕大小為 46dp。當(dāng)我切換到另一個(gè)模擬器或部署到我自己的具有相同尺寸的設(shè)備時(shí)，它會將按鈕放在整個(gè)屏幕上。它需要看起來像任何 Android 設(shè)備上的屏幕截圖，至少在縱向模式下。我發(fā)現(xiàn)類似的問題沒有幫助，因?yàn)樗鼈兪褂昧司€性布局。如果可能的話，我想在約束布局中執(zhí)行此操作。我來自網(wǎng)絡(luò)開發(fā)背景，所以我通常會使用 % 來處理寬度/高度，但不確定它在 Android 開發(fā)中是如何工作的。我只是在示例代碼中放入 1 個(gè)按鈕，因?yàn)槌酥岛图s束關(guān)系之外，所有其他按鈕幾乎都是相同的。<androidx.constraintlayout.widget.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="#9C8A7C" tools:context=".PswdActivity"><Button android:id="@+id/button5" android:layout_width="125dp" android:layout_height="125dp" android:layout_marginStart="24dp" android:layout_marginTop="24dp" android:layout_marginEnd="24dp" android:textSize="50sp" android:text="5" android:onClick="btnEnterCode" app:layout_constraintEnd_toStartOf="@+id/button6" app:layout_constraintStart_toEndOf="@+id/button4" app:layout_constraintTop_toBottomOf="@+id/button2" />
3 回答
慕斯王
TA貢獻(xiàn)1864條經(jīng)驗(yàn) 獲得超2個(gè)贊
我認(rèn)為，網(wǎng)格布局更適合此目的，因?yàn)榘粹o看起來像網(wǎng)格。
這將適合任何屏幕。
<?xml version="1.0" encoding="utf-8"?>
<GridLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:padding="20dp"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnCount="3"
android:rowCount="5"
android:background="#fff"
>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="1"
android:layout_rowWeight="1"/>
<Button
android:layout_columnWeight="3"
android:layout_rowWeight="1"
android:layout_columnSpan="3"
/>
</GridLayout>
桃花長相依
TA貢獻(xiàn)1860條經(jīng)驗(yàn) 獲得超8個(gè)贊
<Button
android:id="@+id/three"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_alignParentTop="true"
android:layout_marginStart="2dp"
android:layout_marginTop="4dp"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:focusable="true"
android:text="@string/three"
android:textColor="@color/colorPrimaryDark"
android:textSize="18sp"
app:layout_column="2"
app:layout_constraintEnd_toStartOf="@+id/button2"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/two"
app:layout_constraintTop_toBottomOf="@+id/six"
app:layout_row="2" />
你可以使用它，就像我在 Framelayout 中使用這種類型的視圖制作計(jì)算器一樣，如果你想要完整的 xml 代碼，我可以與你分享
有只小跳蛙
TA貢獻(xiàn)1824條經(jīng)驗(yàn) 獲得超8個(gè)贊
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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"
tools:context=".MainActivity">
<Button
android:id="@+id/button1"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="1"
app:layout_constraintEnd_toStartOf="@id/button2"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@id/button2"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button2"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="2"
app:layout_constraintBottom_toTopOf="@id/button5"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button3"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="3"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toEndOf="@id/button2"
app:layout_constraintTop_toTopOf="@id/button2"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button4"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="4"
app:layout_constraintEnd_toStartOf="@id/button5"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@id/button5"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button5"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="5"
app:layout_constraintBottom_toTopOf="@id/button8"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/button2"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button6"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="6"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toEndOf="@id/button5"
app:layout_constraintTop_toTopOf="@id/button5"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button7"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="7"
app:layout_constraintEnd_toStartOf="@id/button8"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@id/button8"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button8"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button9"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="9"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toEndOf="@id/button8"
app:layout_constraintTop_toTopOf="@id/button8"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button10"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="X"
app:layout_constraintEnd_toStartOf="@id/button11"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@id/button11"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button11"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="0"
app:layout_constraintBottom_toTopOf="@id/button13"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/button8"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button12"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="OK"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toEndOf="@id/button11"
app:layout_constraintTop_toTopOf="@id/button11"
app:layout_constraintWidth_percent="0.3" />
<Button
android:id="@+id/button13"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="back"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.19"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/button11"
app:layout_constraintWidth_percent="0.95" />
此布局適用于任何屏幕尺寸或方向。
縱向：
橫向方向：
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