Как создать всплывающее окно (PopupWindow) в Android

Question

Как создать всплывающее окно (PopupWindow) в Android

Чтобы создать простое рабочее PopupWindow, нам нужно сделать следующее:

popup_example.xml:

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical"
        android:padding="10dip"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">

        <TextView         
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dip"
            android:text="Test Pop-Up" />

    </LinearLayout>

Java code

LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

PopupWindow pw = new PopupWindow(inflater.inflate(R.layout.popup_example, null, false),100,100, true);

pw.showAtLocation(this.findViewById(R.id.main), Gravity.CENTER, 0, 0);

Мое требование: мне нужны

<TEXTVIEW android:layout_height="wrap_content" android:layout_width="fill_parent" />

и

<BUTTON android:id="@+id/end_data_send_button" android:text="Cancel"/>

в моем popup_example.xml . Как я могу обрабатывать эти два компонента в моем Java-коде?

screenshot

45

android popupwindow android-popupwindow

задан Suragch 5 May 2018 в 11:08

1 ответ

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android popupwindow android-popupwindow

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score 0 · Answer 1

res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/rl"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="16dp"
    tools:context=".MainActivity"
    android:background="#f5f1e0"
    >
    <Button
        android:id="@+id/btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Show Popup Window"
        />
</RelativeLayout>

res/layout/custom_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rl_custom_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="2dp"
    android:background="#ab2fc4"
    >
    <ImageButton
        android:id="@+id/ib_close"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_close_white_24dp"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:background="@null"
        />
    <TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="This is a sample popup window."
        android:layout_centerInParent="true"
        android:padding="25sp"
        />
</RelativeLayout>

пример MainActivity.class

public class MainActivity extends Activity {
   /*
   * value item class
   */
    private Context mContext;
    private Activity mActivity;
    private RelativeLayout mRelativeLayout;
    private Button mButton;
    private PopupWindow mPopupWindow;
 /*
 * function main onCreate
 */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mContext = getApplicationContext();
        mActivity = MainActivity.this;
        mRelativeLayout = (RelativeLayout) findViewById(R.id.rl);
        mButton = (Button) findViewById(R.id.btn);
  // evente click open popupWindow
        mButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(LAYOUT_INFLATER_SERVICE);
                View customView = inflater.inflate(R.layout.custom_layout,null);
                mPopupWindow = new PopupWindow(
                        customView,
                        LayoutParams.WRAP_CONTENT,
                        LayoutParams.WRAP_CONTENT
                );
                if(Build.VERSION.SDK_INT>=21){
                    mPopupWindow.setElevation(5.0f);
                }
                ImageButton closeButton = (ImageButton) customView.findViewById(R.id.ib_close);
                closeButton.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {

                        mPopupWindow.dismiss();
                    }
                });
                mPopupWindow.showAtLocation(mRelativeLayout, Gravity.CENTER,0,0);
            }
        });
    }
}

пјљ https://code-android-example.blogspot.com/2019/07/android-popup-window-example.html