android - 如何在 Android Studio 中对齐弹出窗口

Question

我有这个Activity，我想将它与布局的底部对齐。我知道制作弹出窗口的方法很奇怪，但请不要怪我，我还在学习很多东西。

我还想要一些更好的弹出窗口方法的想法。

TaskAddPopWindowActivity

package com.example.dotomorrow;

import androidx.appcompat.app.AppCompatActivity;

import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.Window;

public class TaskAddPopWindowActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_task_add_pop_window);


        DisplayMetrics displaymetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getRealMetrics(displaymetrics);



        int height = displaymetrics.heightPixels;
        int width = displaymetrics.widthPixels;

        getWindow().setLayout((int) (width), (int) ((height*.4)));


}

values\themes.xml （第一天）

<resources xmlns:tools="http://schemas.android.com/tools">
    <!-- Base application theme. -->
    <style name="Theme.DoTomorrow" parent="Theme.MaterialComponents.Light">
        <!-- Primary brand color. -->
        <item name="colorPrimary">@color/purple_500</item>
        <item name="colorPrimaryVariant">@color/purple_700</item>
        <item name="colorOnPrimary">@color/white</item>
        <!-- Secondary brand color. -->
        <item name="colorSecondary">@color/teal_200</item>
        <item name="colorSecondaryVariant">@color/teal_700</item>
        <item name="colorOnSecondary">@color/white</item>
        <!-- Status bar color. -->
        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
        <!-- Customize your theme here. -->
        <item name="android:actionOverflowButtonStyle">@style/threedots_Menu</item>
        <item name="toolbarStyle">@style/ToolbarStyle</item>
    </style>

    <style name="threedots_Menu" parent="@style/Widget.AppCompat.ActionButton.Overflow">
        <item name="android:src">@drawable/ic_dotsfor_menu_dots</item>
    </style>

    <style name="ToolbarStyle" parent="@style/Widget.AppCompat.Toolbar">
        <item name="titleTextColor">@color/white</item>
    </style>


    <style name="PopWindow_TaskAdd_actionBarStyle" parent="Widget.AppCompat.ActionBar">
        <item name="android:background">@color/black</item>
        <item name="background">@color/black</item>
    </style>

    <style name="PopWindow_TaskAdd_Characteristics" parent="Theme.MaterialComponents.Light">
<!--        <item name="actionBarStyle">@style/PopWindow_TaskAdd_actionBarStyle</item>-->
        <item name="actionBarSize">60dp</item>
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowCloseOnTouchOutside">true</item>
    </style>
    



</resources>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.example.dotomorrow">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.DoTomorrow">
        <activity android:name=".TaskAddPopWindowActivity"
            android:theme="@style/PopWindow_TaskAdd_Characteristics"/>
        <activity android:name=".Settings" />
        <activity android:name=".TaskAddActivity" />
        <activity android:name=".AllTaskActivity" />
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>


    </application>

</manifest>

标签： androidandroid-studiopopup