java - 如何使用 okay 按钮关闭 android 弹出窗口

Question

我正在为一个学校项目制作一个应用程序，但我被困在一个领域。我想使用一个确定按钮关闭弹出窗口。如果您有任何建议或有更好的弹出窗口实现方式，请分享。

package xyz.ashraf.whoisdelasalle;

import android.app.Activity;
import android.os.Bundle;
import android.util.DisplayMetrics;

public class Pop extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.popwindow);

    DisplayMetrics dm = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(dm);

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

    getWindow().setLayout((int)(width*.8),(int)(height*.5));

}
}

Java代码^

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/ScrollView01"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
<RelativeLayout
    android:layout_width="match_parent" android:layout_height="match_parent"
    android:background="#FAFAFA">

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text="John Baptist de La Salle was a French priest, educational reformer, and founder of the Institute of the Brothers of the Christian Schools. He is a saint of the Roman Catholic Church and the patron saint of teachers."
    android:id="@+id/textView"
    android:background="#FAFAFA"
    android:textColor="#000000"
    android:layout_alignParentTop="true"
    android:layout_marginTop="15dp"
    android:layout_marginRight="15dp"
    android:layout_marginLeft="15dp"/>

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="OK"
    android:id="@+id/okButton_who"
    android:textColor="#00E676"
    android:background="#FAFAFA"
    android:layout_below="@+id/textView"
    android:layout_alignRight="@+id/textView"
    android:layout_alignEnd="@+id/textView"
    android:layout_marginTop="50dp"/>

</RelativeLayout>
    </ScrollView>

XML^

提前致谢!

Answer 1

不确定这是否可行，但您可以尝试:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.popwindow);

    DisplayMetrics dm = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(dm);

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

    getWindow().setLayout((int)(width*.8),(int)(height*.5));

    Button okButton = (Button) findViewById(R.id.okButton_who);
    okButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            finish();
        }
    });

}

否则您可以按照 akadouri 的建议使用 Dialogs 或 DialogFragments。