将Activity显示成Dialog的形式：
Tip: If you want a custom dialog, you can instead display an
Activity
as a dialog instead of using the Dialog
APIs. Simply create an activity and set its theme to Theme.Holo.Dialog
in the <activity>
manifest element:
<activityandroid:theme="@android:style/Theme.Holo.Dialog">
That‘s it. The activity now displays in a dialog window instead of fullscreen.
将dialog的按钮点击事件传递给Activity:
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package
leihu.dialogtoactivity;import android.annotation.SuppressLint;import android.app.DialogFragment;import android.os.Bundle;import android.support.v4.app.FragmentActivity;public class MainActivity extends
FragmentActivity implements
NoticeDialogFragment.NoticeDialogListener{ @Override protected
void onCreate(Bundle savedInstaceState) { super.onCreate(savedInstaceState); setContentView(R.layout.activity_main); showNoticeDialog(); } @SuppressLint("NewApi") public
void showNoticeDialog(){ DialogFragment dialog = new
NoticeDialogFragment(); dialog.show(getFragmentManager(), "NoticeDialogFragment"); } @Override public
void onDialogPositiveClick(DialogFragment dialog) { // TODO Auto-generated method stub System.out.println( "Positive button is pressed"); } @Override public
void onDialogNegativeClick(DialogFragment dialog) { // TODO Auto-generated method stub System.out.println("Negative button is pressed"); }} |
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package
leihu.dialogtoactivity;import android.annotation.SuppressLint;import android.app.Activity;import android.app.AlertDialog;import android.app.Dialog;import android.app.DialogFragment;import android.content.DialogInterface;import android.os.Bundle;@SuppressLint("NewApi")public
class NoticeDialogFragment extends
DialogFragment{ public
interface NoticeDialogListener{ public
void onDialogPositiveClick(DialogFragment dialog); @SuppressLint("NewApi") public
void onDialogNegativeClick(DialogFragment dialog); } NoticeDialogListener mListener; @SuppressLint("NewApi") @Override public
void onAttach(Activity activity) { //Called when a fragment is first attached to its activity //<code><a href="http://i.cnblogs.com/reference/android/app/Fragment.html#onCreate(android.os.Bundle)">onCreate(Bundle)</a></code> will be called after this. super.onAttach(activity); try
{ mListener = (NoticeDialogListener) activity; } catch
(Exception e) { throw
new ClassCastException(activity.toString() + " must implement NoticeDialogListener"); } } @SuppressLint("NewApi") @Override public
Dialog onCreateDialog(Bundle savedInstanceState) { AlertDialog.Builder builder = new
AlertDialog.Builder(getActivity()); builder.setMessage("fire missiles") .setPositiveButton("frie", new
DialogInterface.OnClickListener() { @Override public
void onClick(DialogInterface dialog, int
which) { mListener.onDialogPositiveClick(NoticeDialogFragment.this); } }) .setNegativeButton("cancel", new
DialogInterface.OnClickListener() { @Override public
void onClick(DialogInterface dialog, int
which) { mListener.onDialogNegativeClick(NoticeDialogFragment.this); } }); return
builder.create(); } } |
原文：http://www.cnblogs.com/leihupqrst/p/3718964.html