Android 多屏

Question

我在 android 中遇到多屏幕问题。

在我阅读此网页后:

https://developer.android.com/guide/practices/screens_support.html developer.android.com/training/multiscreen/screensizes.html

我尝试通过添加最小屏幕宽度布局目录将我的 activity 更改为多屏幕布局：

layout-sw320dp

layout-sw320dp-land

layout-sw480dp

layout-sw480dp-land

layout-sw600dp

layout-sw600dp-land

layout-sw720dp

layout-sw720dp-land

我的 activity :

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:tools="http://schemas.android.com/tools"
          android:id="@+id/activity_main"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:background="@color/background"
          tools:context="com.example.aref.calculator.MainActivity"
          android:orientation="vertical">


<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/lin"
    android:orientation="vertical">


    <EditText
        android:id="@+id/etInput"
        android:layout_height="163dp"
        android:background="@android:color/transparent"
        android:cursorVisible="false"
        android:gravity="end|center"
        android:hint="@string/zero"
        android:inputType="numberSigned"
        android:padding="16dp"
        android:scrollHorizontally="true"
        android:singleLine="true"
        android:textColor="@android:color/black"
        android:textColorHint="@android:color/darker_gray"
        android:textCursorDrawable="@null"
        android:textSize="50sp"
        android:layout_width="match_parent" />


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_margin="2dp"
        android:orientation="horizontal">

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <Button
                android:id="@+id/btnMc"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:background="@drawable/btn_selector"
                android:text="@string/mc" />

            <Button
                android:id="@+id/btnMemory"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector"
                android:text="@string/nullMemory" />

            <Button
                android:id="@+id/btnSeven"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/seven" />

            <Button
                android:id="@+id/btnFour"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/four" />

            <Button
                android:id="@+id/btnOne"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/one" />

            <Button
                android:id="@+id/btnZero"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/zero" />

        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <Button
                android:id="@+id/btnMPlus"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:background="@drawable/btn_selector"
                android:text="@string/mPlus" />

            <Button
                android:id="@+id/btnClear"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector1"
                android:text="@string/clear" />

            <Button
                android:id="@+id/btnEight"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/eight" />

            <Button
                android:id="@+id/btnFive"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/five" />

            <Button
                android:id="@+id/btnTwo"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/two" />

            <Button
                android:id="@+id/btnPoint"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector1"
                android:text="@string/point" />

        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <Button
                android:id="@+id/btnMMinus"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:background="@drawable/btn_selector"
                android:text="@string/mMinus" />

            <Button
                android:id="@+id/btnAllClear"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector1"
                android:text="@string/AllClear" />

            <Button
                android:id="@+id/btnNine"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/nine" />

            <Button
                android:id="@+id/btnSix"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/six" />

            <Button
                android:id="@+id/btnThree"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector2"
                android:text="@string/three" />

            <Button
                android:id="@+id/btnEqual"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector1"
                android:text="@string/equal" />

        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <Button
                android:id="@+id/btnMr"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:background="@drawable/btn_selector"
                android:text="@string/mr" />

            <Button
                android:id="@+id/btnMod"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector3"
                android:text="@string/mod" />

            <Button
                android:id="@+id/btnDiv"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector3"
                android:text="@string/div" />

            <Button
                android:id="@+id/btnMul"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector3"
                android:text="@string/mul" />

            <Button
                android:id="@+id/btnPlus"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector3"
                android:text="@string/plus" />

            <Button
                android:id="@+id/btnMin"
                android:layout_width="@dimen/btn_width_small"
                android:layout_height="@dimen/btn_height_small"
                android:layout_marginLeft="@dimen/btn_marginLeft_marginStart"
                android:layout_marginStart="@dimen/btn_marginLeft_marginStart"
                android:layout_marginTop="@dimen/btn_margin_top"
                android:background="@drawable/btn_selector3"
                android:text="@string/minus" />

        </LinearLayout>


    </LinearLayout>

</LinearLayout>

例如我的问题是 "layout-sw320dp" 当我将设备更改为例如 nexus 4 或 nexus 的布局变得不合适时，我设计了 nexus 5x 的布局

我想： http://s8.picofile.com/file/8299930926/564684.png

Answer 1

您正在设置固定宽度的按钮。这永远不会跨设备运行良好。使用另一种技术。例如，如果您想要 4 个大小相同的按钮，将每一行放置为线性布局，并为它们分配所有 0dp 宽度和 1 权重，这样它们就会变得同样大。

Answer 2

您创建线性布局并使用 weightsum 。因此您可以在多个屏幕中使用

Android 多屏

Android Multiple Screen

layout

android

multiscreen

android-layout