Android Studio按钮定位 [英] Android Studio button positioning

问题描述

我正在尝试将按钮位置设置在屏幕的右下角.我已经尝试过了:

I'm trying to set button position to the bottom right corner of the screen. I've tried with this:

button.setX(maxX);
button.setY(maxY);

但是该按钮不可见，因为它不在屏幕上.

but the button is invisible because it's off the screen.

进行澄清.当我将按钮的位置设置为 maxX 和 maxY 时，我需要找到一种方法来保持按钮的布局.为了防止它越界.因此，即使我将其位置设置为:

To clarify. I need to find a way to keep my button WITHIN layout when I set its position to maxX and maxY. To prevent it from going out of bounds. So even if I set its position to something like:

button.setX(maxX - 10);
button.setY(maxY - 10);

它不会伸出屏幕一半.

推荐答案

请选中此答案更改按钮的位置.

替代方式，您可以将其添加到您的按钮(RelativeLayout)中

Alternative Way, You can add this in your button(RelativeLayout)

android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"

示例演示

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" 
>

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="#AF3800"
    android:layout_alignParentBottom="true"
    android:layout_alignParentRight="true"

     />

android:layout_alignParentBottom 如果为true，则使该视图的底部边缘与父视图的底部边缘匹配.容纳底部边距.

android:layout_alignParentBottom If true, makes the bottom edge of this view match the bottom edge of the parent. Accommodates bottom margin.

android:layout_alignParentRight 如果为true，则使该视图的右边缘与父视图的右边缘匹配.容纳右边距.

android:layout_alignParentRight If true, makes the right edge of this view match the right edge of the parent. Accommodates right margin.

两者均为布尔值，"true"或"false".

Both are boolean value, either "true" or "false".

我希望它会对您有所帮助.

I hope it will helps you .

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