java 将自定义弹出/视图添加到 android 中的活动
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时间：2020-11-03 02:33:57 来源:igfitidea点击:
Add custom Popup/view to activity in android
提问by Rafaalvfe
I'm starting in Android development and don't still get how to do this. I have a ListView, when the user taps one of the items I wan′t to display some information about it.
A popup like this:
我开始从事 Android 开发，但仍然不知道如何做到这一点。我有一个 ListView，当用户点击我不想显示的一些信息时。像这样的弹出窗口：
That's the way it should look, I already have the XML which is this:
这就是它应该看起来的样子，我已经有了这样的 XML：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#b5000000">
<RelativeLayout
android:layout_width="340dp"
android:layout_height="400dp"
android:columnCount="20"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:padding="10dp"
android:background="@drawable/menubutton">
<Button
android:layout_width="50dp"
android:layout_height="50dp"
android:text="X"
android:id="@+id/infraccionesPopUpCerrar"
android:layout_gravity="right|top"
android:layout_row="0"
android:layout_column="19"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true" />
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:id="@+id/imageView8"
android:layout_row="2"
android:layout_column="10"
android:layout_below="@+id/infraccionesPopUpCerrar"
android:layout_centerHorizontal="true" />
<TextView
android:layout_width="match_parent"
android:layout_height="200dp"
android:text="Aqui se detallaran las causas de la infraccion"
android:id="@+id/infraccionesPopUpCausa"
android:layout_column="0"
android:layout_row="3"
android:layout_columnSpan="20"
android:layout_below="@+id/imageView8"
android:layout_alignParentStart="true"
android:layout_marginTop="43dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Small Text"
android:id="@+id/infraccionesPopUpFecha"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="PAGADA"
android:id="@+id/infraccionesPopUpSituacion"
android:layout_below="@+id/infraccionesPopUpCausa"
android:layout_alignStart="@+id/infraccionesPopUpCausa" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Folio: 00000000"
android:id="@+id/infraccionesPopUpFolio"
android:layout_alignParentBottom="true"
android:layout_alignStart="@+id/infraccionesPopUpSituacion" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Estacionamiento prohibido"
android:id="@+id/infraccionesPopUpTitulo"
android:layout_below="@+id/imageView8"
android:layout_centerHorizontal="true"
android:textColor="#74cb51" />
</RelativeLayout>
How do I instantiate this Popup so I can change the content of the textviews inside? The information that displays the popup depends on what item he tap
我如何实例化这个 Popup 以便我可以更改里面的 textviews 的内容？显示弹出窗口的信息取决于他点击的项目
采纳答案by Ahmed Hegazy
You can make use of DialogFragment, it has some cool predefined layouts but you need your custom one.
您可以使用DialogFragment，它有一些很酷的预定义布局，但您需要自定义布局。
public class MyDialogFragment extends DialogFragment {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
// Get the layout inflater
LayoutInflater inflater = getActivity().getLayoutInflater();
// Inflate the layout for the dialog
// Pass null as the parent view because its going in the dialog layout
View view = inflater.inflate(R.layout.dialog_custom_layout, null);
// Get your views by using view.findViewById() here and do your listeners.
...
// Set the dialog layout
builder.setView(view);
return builder.create();
}
}
More info can be found at the official documentation.
更多信息可以在官方文档中找到。
回答by user3678528
public class Check extends AppCompatActivity {
ListView listView;
String[] days = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
ArrayAdapter<CharSequence> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register_check);
listView = (ListView) findViewById(R.id.listView);
//custom_list_row contains textview only
adapter = new ArrayAdapter<CharSequence>(this, R.layout.custom_list_row, days);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//pass the view
showPopUp(view);
}
});
}
public void showPopUp(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
LayoutInflater layoutInflater = getLayoutInflater();
//this is custom dialog
//custom_popup_dialog contains textview only
View customView = layoutInflater.inflate(R.layout.custom_popup_dialog, null);
// reference the textview of custom_popup_dialog
TextView tv = (TextView) customView.findViewById(R.id.tvpopup);
//this textview is from the adapter
TextView text = (TextView) view.findViewById(R.id.textView);
// get the text of the view clicked
String day = text.getText().toString();
//set the text to the view of custom_popop_dialog.
tv.setText(day);
builder.setView(customView);
builder.create();
builder.show();
}
}
}
回答by bhumika rijiya
Try this method,
试试这个方法，
Point p;
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
showpopupwindows(Activity, p);
}
});
then,
然后，
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
int location[] = new int[2];
show_popup.getLocationOnScreen(location);
p.x = location[0];
p.y = location[1];
}
private void showpopupwindows(final Activity context, Point p) {
LinearLayout viewGroup = (LinearLayout) context
.findViewById(R.id.popup_menu);
LayoutInflater layoutInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
Display display = context.getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int popupwidth = (size.x / 2);
int popupheight =(size.y / 2);
View layout = layoutInflater.inflate(R.layout.detail_pop, viewGroup);
final PopupWindow popup = new PopupWindow(context);
popup.setContentView(layout);
popup.setWidth(popupwidth);
popup.setHeight(popupheight);
popup.setFocusable(true);
popup.setAnimationStyle(R.style.WindowAnimation);
popup.setBackgroundDrawable(new ColorDrawable(
android.graphics.Color.TRANSPARENT));
popup.showAtLocation(layout, Gravity.NO_GRAVITY, popupwidth,popupheight);
detail_pop1 = (TextView) layout.findViewById(R.id.detail_pop1);
detail_pop1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(getContext(), "pop window is opened, Toast.LENGTH_SHORT).show();
}
});
}
