我有一个警报对话框,在对话框的布局中有一个我希望可以点击的按钮,但是当我使用 onclick 侦听器时,该按钮仍然不起作用。
我的警报对话框就是这样构建的。
AlertDialog.Builder alert = new AlertDialog.Builder(this);
Context mContext = getApplicationContext();
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.distro_editor_popup, (ViewGroup) findViewById(R.id.layout_root));
txt_Name = (EditText) layout.findViewById(R.id.txt_LinuxName);
txt_Image = (EditText) layout.findViewById(R.id.txt_ImageName);
filemanger = (Button) layout.findViewById(R.id.fileselector);
txt_Name.setText(selected_Name);
txt_Image.setText(selected_Image);
final String oldName = selected_Name;
final String oldImage = selected_Image;
filemanger.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("file/*");
startActivityForResult(intent,PICKFILE_RESULT_CODE);
}
});
alert.setView(layout);
alert.setPositiveButton(R.string.dialog_button_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String name = txt_Name.getText().toString();
String image = txt_Image.getText().toString();
// Make sure the user entered a name
if (name.equals("")) {
return;
}
if (!oldName.equals(name)) {
// Name was changed so we have to delete the old one from the profiles first!
profiles.remove(oldName);
}
if (!oldImage.equals(image)) {
// Image name has changed so we rename the mounts and config files
file_Rename(oldImage + ".mounts", image + ".mounts");
file_Rename(oldImage + ".config", image + ".config");
}
profiles.put(name, image);
lastSelected = name;
fillSpinner();
savePrefs();
}
});
alert.setNegativeButton(R.string.dialog_button_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
});
alert.show();
然后对话框的 XML 布局是:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout_root"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
>
<RelativeLayout android:layout_alignBaseline="@+id/layout_root" android:layout_height="wrap_content" android:layout_width="fill_parent" android:layout_marginTop="8sp" android:id="@+id/RelativeLayout1">
<TextView
android:id="@+id/label_Name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/inputLabel_Name"
android:layout_centerVertical="true"/>
<EditText
android:id="@+id/txt_LinuxName"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="@id/label_Name"
android:hint="@string/hint_EnterName"
android:textColor="#FF111111" >
<requestFocus></requestFocus>
</EditText>
</RelativeLayout>
<RelativeLayout
android:id="@+id/RelativeLayout3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/layout_root"
android:layout_marginTop="8sp" >
<TextView
android:id="@+id/label_Image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:text="@string/launcher_Label_ImageName" />
<EditText
android:id="@+id/txt_ImageName"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="@+id/fileselector"
android:layout_toRightOf="@id/label_Image"
android:textColor="#FF111111" >
<requestFocus></requestFocus>
</EditText>
<Button
android:id="@+id/fileselector"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/txt_ImageName"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="..." />
</RelativeLayout>