本文实例讲述了Android基于DialogFragment创建对话框的方法。分享给大家供大家参考,具体如下:
/**
* 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
<?xml version="1.0" encoding="utf-8"?>
<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
希望本文所述对大家Android程序设计有所帮助。
来源:http://blog.csdn.net/true100/article/details/51383639
标签:Android,DialogFragment,对话框