如何使用对话框片段？ （的ShowDialog德preciated）的Android [英] How to use Dialog Fragment? (showDialog depreciated) Android
问题描述
据我所知，有这个文件
<一个href="http://developer.android.com/reference/android/app/DialogFragment.html#AlertDialog">http://developer.android.com/reference/android/app/DialogFragment.html#AlertDialog
但作为一个新的Android / Java的学习是不容易理解的code写入弹出了2个选项一个简单的警告对话框涉及的金额（是/否）消息。
but as a new Android/Java learner it is not easy to understand the amount of code involved from writing a simple alert dialog that pops up with 2 options (yes/no) message.
下面是code我目前在我的MainActivity文件：
Here is the code I currently have in my MainActivity file:
final private int RESET_DIALOG = 0;
private OnClickListener resetButtonListener = new OnClickListener() {
@Override
public void onClick(View v) {
showDialog(RESET_DIALOG);
}
};
protected android.app.Dialog onCreateDialog(int id) {
switch(id) {
case RESET_DIALOG:
AlertDialog.Builder builder = new Builder(this);
return builder
.setMessage("Are you sure you want to reset the count?")
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did not reset!", 5).show();
}
})
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did Reset!", 5).show();
}
})
.create();
}
return null;
};
这是我尝试下在Android网站上的说明：主要活动文件：
This is my attempt to following the instructions on the android site: Main Activity file:
final private int RESET_DIALOG = 0;
private OnClickListener resetButtonListener = new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, MainDialog.class);
startActivity(intent);
}
};
protected android.app.Dialog onCreateDialog(int id) {
switch(id) {
case RESET_DIALOG:
AlertDialog.Builder builder = new Builder(this);
return builder
.setMessage("Are you sure you want to reset the count?")
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did not reset!", 5).show();
}
})
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did Reset!", 5).show();
}
})
.create();
}
return null;
};
然后创建一个MainDialog类：（我居然瘦了如何正确地做到这一点，或申请吧）
Then created a MainDialog class: (I am actually lost in how to do this correctly or apply it)
package com.proteintracker;
import android.support.v4.app.DialogFragment;
public class MainDialog 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;
}
}
我不知道如果我想创造片段一个新的类，以及如何将其应用到我的活动画面当前对话框。
I am not sure if I was suppose to create a new class for the fragment and how to apply it to my current dialog in the activity screen.
推荐答案
您可以告诉你 FragmentDialog 是这样的：
You can show you FragmentDialog like this:
void showDialog() {
DialogFragment newFragment = MyAlertDialogFragment.newInstance(
R.string.alert_dialog_two_buttons_title);
newFragment.show(getFragmentManager(), "dialog");
}
在你片段对话框你应该重写 onCreateDialog 键，返回简单的对话框，例如<$ c您实例$ C> AlertDialog 。
In you fragment dialog you should override onCreateDialog and return you instance of simple Dialog, for example AlertDialog.
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;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
int title = getArguments().getInt("title");
AlertDialog.Builder builder = new Builder(this);
return builder
.setMessage("Are you sure you want to reset the count?")
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did not reset!", 5).show();
}
})
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did Reset!", 5).show();
}
})
.create();
}
}
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