我正在尝试在我的应用程序中实现一个弹出窗口，但它不会关闭。当我单击加号按钮时，应该打开弹出窗口，这很有效。但是，当我单击弹出布局中的取消按钮时，它应该关闭，但它没有。为什么？
弹出布局（tempo_popup.xml）：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<EditText
android:id="@+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="number" >
<requestFocus />
</EditText>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_weight="1" >
<Button
android:id="@+id/confirmtempo"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/Confirm" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_weight="1" >
<Button
android:id="@+id/canceltempo"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/Cancel" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
Java代码：
public class MetronomeActivity extends Activity{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_metronome);
final Button plus = (Button) findViewById(R.id.tempop);
final Button minus = (Button) findViewById(R.id.tempom);
final Button confirm_tempo = (Button) findViewById(R.id.confirmtempo);
plus.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final LayoutInflater inflater = (LayoutInflater) getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View pop = inflater.inflate(R.layout.tempo_popup, null, false);
final PopupWindow pw = new PopupWindow(
inflater.inflate(R.layout.tempo_popup, null, false),
250, 150, true);
// The code below assumes that the root container has an id called 'main'
pw.showAtLocation(plus, Gravity.CENTER, 0, 0);
Button cancel_tempo = (Button) pop.findViewById(R.id.canceltempo);
cancel_tempo.setOnClickListener( new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.i("Begin1", "POPUP CANCEL");
pw.dismiss();
}
});
}
});
}
}