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官方关于Dialog的介绍
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:
+ View Code?
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | 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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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | 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(); } } |
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