我有一个Activity（DocumentActivity.java），带有一个带有对话框的有界上下文（documents_link_onclick_dialog.xml）。在这个对话框中，当我点击一个按钮时，我想打开另一个对话框（documents_link_editlink.xml），但这次对话框应该有另一个Activity（UrlActivity.java）。 我尝试了这4个，但没有一个工作。
// Try 1
new UrlActivity().showDialog(R.layout.documents_link_editlink);
// Try 2
startActivity(new Intent(this, UrlActivity.class));
// Try 3
dialog.setContentView(R.layout.documents_link_editlink);
dialog.show();
// Try 4
final Dialog dialog2 = new Dilog(UrlAcitivty.this);
dialog2.show()
我做错了什么？ 我希望有人可以帮助我:)。
在这里您可以找到相关的课程：
<activity
android:name=".documents.UrlActivity"
android:label="@string/documents_link_edit_activity_title"
android:theme="@android:style/Theme.Black"
>
<intent-Filter>
<action android:name="de.hsaugsburg.hsapp.documents.intent.action.view" />
<category android:name="android.intent.category.DEFAULT" />
</intent-Filter>
</activity>
public class DocumentActivity extends TabActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
refreshList();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (data != null && data.getAction().equals("ACTION_REFRESH")) {
refreshList();
}
}
private void initLinkOptionMenu(final Link selected) {
final Dialog dialog = new Dialog(DocumentActivity.this);
dialog.setContentView(R.layout.documents_link_onclick_dialog);
dialog.setTitle("Choose action...");
final Button buttonOpen = (Button) dialog.findViewById(R.id.dlol_buttonOpen);
buttonOpen.setText("Open Link!");
final ImageView imageOpen = (ImageView) dialog.findViewById(R.id.dlol_imageOpen);
imageOpen.setImageResource(R.drawable.ic_save);
buttonOpen.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
closeDialog(dialog);
openLink(selected);
}
});
final Button buttonEdit = (Button) dialog.findViewById(R.id.dlol_buttonEdit);
buttonEdit.setText("Edit Link!");
final ImageView imageEdit = (ImageView) dialog.findViewById(R.id.dlol_imageEdit);
imageEdit.setImageResource(R.drawable.ic_edit);
buttonEdit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
closeDialog(dialog);
initEditDialog(dialog);
}
});
final Button buttonShare = (Button) dialog.findViewById(R.id.dlol_buttonShare);
buttonShare.setText("Share Link!");
final ImageView imageShare = (ImageView) dialog.findViewById(R.id.dlol_imageShare);
imageShare.setImageResource(R.drawable.ic_share2);
final Button dialogButton = (Button) dialog.findViewById(R.id.dlol_dialogButtonOK);
dialogButton.setText("Close");
dialogButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
closeDialog(dialog);
}
});
dialog.show();
}
private void initEditDialog(final Dialog dialog) {
new UrlActivity().showDialog(R.layout.documents_link_editlink);
LOG.info("URLActivity started: ");
startActivity(new Intent(this, UrlActivity.class));
dialog.setContentView(R.layout.documents_link_editlink);
dialog.show();
final Dialog dialog2 = new Dilog(UrlAcitivty.this);
dialog2.show()
}
private void refreshList() {
try {
final AsyncTask<String, Void, String> result = Requester
.requestCategory(getBaseContext());
final String res = result.get();
if (res != null) {
categories = InputManager.parseCategories(res);
setContentView(R.layout.documents_main);
tabs = (TabHost) findViewById(android.R.id.tabhost);
tabs.clearAllTabs();
for (final Category category : categories) {
final TabHost.TabSpec spec = tabs.newTabSpec(category
.getName());
spec.setIndicator(category.getName());
spec.setContent(new TabHost.TabContentFactory() {
public View createTabContent(String tag) {
final ListView list = new ListView(
DocumentActivity.this);
final String[] links = new String[category
.getLinks().size()];
int i = 0;
for (Link link : category.getLinks()) {
links[i++] = link.getName();
}
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(
DocumentActivity.this,
R.layout.documents_listitem, links);
list.setAdapter(adapter);
list.setOnCreateContextMenuListener(DocumentActivity.this);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
final Link selected = category.getLinks()
.get(i);
/*
* Defines several behaviours for each link.
*/
initLinkOptionMenu(selected);
}
});
return list;
}
});
tabs.addTab(spec);
}
} else {
Toast.makeText(getApplicationContext(),
R.string.cannot_receive_from_server, Toast.LENGTH_LONG)
.show();
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(getApplicationContext(), e.getMessage(),
Toast.LENGTH_LONG).show();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(getApplicationContext(), e.getMessage(),
Toast.LENGTH_LONG).show();
} catch (ExecutionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(getApplicationContext(), e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.layout.documents_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
final Intent intent = new Intent();
switch (item.getItemId()) {
case (R.id.menu_home):
intent.setClass(DocumentActivity.this, de.hsaugsburg.hsapp.HSAppActivity.class);
break;
case (R.id.menu_addUrl):
// this.addURL();
intent.setClass(DocumentActivity.this, de.hsaugsburg.hsapp.documents.AddUrlActivity.class);
final int tabID = tabs.getCurrentTab();
final Category selected = categories.get(tabID);
intent.setData(Uri.parse("content://category/" + selected.getID()));
break;
case (R.id.menu_Options):
intent.setClass(DocumentActivity.this, de.hsaugsburg.hsapp.documents.OptionsActivity.class);
break;
}
startActivityForResult(intent, 0);
return true;
}
private void closeDialog(Dialog dialog) {
dialog.dismiss();
}
}
public class UrlActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LOG.info("UrlActivity onCreate was created!");
this.dialogContext = UrlActivity.this;
final Dialog dialog = new Dialog(this.dialogContext);
final Button buttonCancel = (Button) dialog.findViewById(R.id.documents_link_edit_cancel);
buttonCancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
closeDialog(dialog);
}
});
dialog.show();
}
}
<?xml version="1.0" encoding="utf-8"?>
<!-- Custom Dialog for custom link options -->
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ImageView
android:id="@+id/dlol_imageOpen"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
/>
<Button
android:id="@+id/dlol_buttonOpen"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/dlol_imageOpen"
android:text=" Open "
android:textColor="#FFF"
/>
<ImageView
android:id="@+id/dlol_imageShare"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
android:layout_marginTop="6dp"
android:layout_below="@+id/dlol_imageOpen"
/>
<Button
android:id="@+id/dlol_buttonShare"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/dlol_imageShare"
android:layout_below="@+id/dlol_buttonOpen"
android:text=" Edit "
android:textColor="#FFF"
/>
<ImageView
android:id="@+id/dlol_imageEdit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
android:layout_marginTop="6dp"
android:layout_below="@+id/dlol_imageShare"
/>
<Button
android:id="@+id/dlol_buttonEdit"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/dlol_imageEdit"
android:layout_below="@+id/dlol_buttonShare"
android:text=" Edit "
android:textColor="#FFF"
/>
<Button
android:id="@+id/dlol_dialogButtonOK"
android:layout_width="100px"
android:layout_height="wrap_content"
android:layout_below="@+id/dlol_buttonEdit"
android:layout_marginRight="2dp"
android:layout_marginTop="6dp"
android:layout_centerHorizontal="true"
android:text=" Ok " />
</RelativeLayout>
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".documents.UrlActivity" >
<EditText
android:id="@+id/documentsLinkEditTitleInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/documentsLinkEditTitleLabel"
android:ems="10"
android:inputType="text" >
<requestFocus />
</EditText>
<TextView
android:id="@+id/documentsLinkEditTitleLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="5dp"
android:layout_marginTop="10dp"
android:text="@string/documents_link_edit_title" />
<EditText
android:id="@+id/documentsLinkEditUrlInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/documentsLinkEditUrlLabel"
android:ems="10"
android:inputType="textUri" />
<Spinner
android:id="@+id/documentsLinkEditTypeSpinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/documentsLinkEditTypeLabel" />
<Spinner
android:id="@+id/documentsLinkEditCategorySpinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/documentsLinkEditCategoryLabel" />
<Spinner
android:id="@+id/documentsLinkEditSortAfterSpinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/documentsLinkEditSortAfterLabel" />
<TextView
android:id="@+id/documentsLinkEditCategoryLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/documentsLinkEditTypeLabel"
android:layout_below="@+id/documentsLinkEditTypeSpinner"
android:text="@string/documents_link_edit_category" />
<TextView
android:id="@+id/documentsLinkEditSortAfterLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/documentsLinkEditCategoryLabel"
android:layout_below="@+id/documentsLinkEditCategorySpinner"
android:text="@string/documents_link_edit_sortafter" />
<TextView
android:id="@+id/documentsLinkEditTypeLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/documentsLinkEditUrlLabel"
android:layout_below="@+id/documentsLinkEditUrlInput"
android:text="@string/documents_link_edit_type" />
<TextView
android:id="@+id/documentsLinkEditUrlLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/documentsLinkEditTitleLabel"
android:layout_below="@+id/documentsLinkEditTitleInput"
android:text="@string/documents_link_edit_url" />
<TableRow
android:id="@+id/tableRow1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/documentsLinkEditSortAfterSpinner" >
<Button
android:id="@+id/documents_link_edit_save"
android:layout_width="0dp"
android:layout_height="35dp"
android:layout_weight="0.5"
android:scaleType="fitXY"
android:background="@drawable/button_save"
/>
<Button
android:id="@+id/documents_link_edit_cancel"
android:layout_width="0dp"
android:layout_height="35dp"
android:layout_weight="0.5"
android:scaleType="fitXY"
android:background="@drawable/button_cancel"
/>
</TableRow>
</RelativeLayout>
答案 0 :(得分：0)
只需从对话框onClick()中启动新活动，并让新活动显示新对话框本身（隐式显示，或者在Intent中传递一些EXTRA，以便它知道要显示的对话框。< / p>