Android使用DialogFragment创建对话框

/**
 * 使用DialogFragment创建对话框
 * @description：
 * @author ldm
 * @date 2016-5-12 下午2:00:01
 */
public class FragmentAlertDialog extends Activity {
    private Button button;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_dialog);
        // 初始化Button及设置监听
        button = (Button) findViewById(R.id.show);
        button.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                // 弹出对话框
                showDialog();
            }
        });
    }

    void showDialog() {
        // DialogFragment 创建对话框
        DialogFragment newFragment = MyAlertDialogFragment
                .newInstance(R.string.alert_dialog_two_buttons_title);
        newFragment.show(getFragmentManager(), "dialog");
    }

    public void doPositiveClick() {
        Log.i("FragmentAlertDialog", "Positive click!");
    }

    public void doNegativeClick() {
        Log.i("FragmentAlertDialog", "Negative click!");
    }

    /**
     * 自定义弹出对话框DialogFragmet
     * 
     * @description：
     * @author ldm
     * @date 2016-5-12 下午1:54:31
     */
    public static class MyAlertDialogFragment extends DialogFragment {

        public static MyAlertDialogFragment newInstance(int title) {
            MyAlertDialogFragment frag = new MyAlertDialogFragment();
            Bundle args = new Bundle();
            args.putInt("title", title);
            frag.setArguments(args);
            return frag;
        }

        /**
         * DialogFragment需要实现onCreateView或者onCreateDIalog方法。
         * onCreateView():使用定义的xml布局文件展示Dialog。
         * onCreateDialog():利用AlertDialog或者Dialog创建出Dialog。
         */
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            int title = getArguments().getInt("title");
            return new AlertDialog.Builder(getActivity())//创建一个Dialog
                    .setIcon(R.drawable.alert_dialog_icon)//设置图标
                    .setTitle(title)//设置标题
                    .setPositiveButton(R.string.alert_dialog_ok,
                            new DialogInterface.OnClickListener() {//确认（OK）按钮
                                public void onClick(DialogInterface dialog,
                                        int whichButton) {
                                    ((FragmentAlertDialog) getActivity())
                                            .doPositiveClick();
                                }
                            })
                    .setNegativeButton(R.string.alert_dialog_cancel,//取消（Cancel）按钮
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog,
                                        int whichButton) {
                                    ((FragmentAlertDialog) getActivity())
                                            .doNegativeClick();
                                }
                            }).create();
        }
    }

}

———–布局文件—————–

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center_horizontal"
    android:orientation="vertical"
    android:padding="4dip" >

    <TextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical|center_horizontal"
        android:layout_weight="1"
        android:gravity="top|center_horizontal"
        android:text="Example of displaying an alert dialog with a DialogFragment"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <Button
        android:id="@+id/show"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="0"
        android:text="@string/show" >

    Button>

LinearLayout>

开源代码：https://github.com/ldm520/ANDROID_API_DEMOS