获取AlertDialog输入 [英] Get AlertDialog input
问题描述
我有两个海关 AlertDialog
。 所有的工作,因为我无法得到用户的输入,我已经创建了一个名为MyDialog的类并放置了构造函数。此外,我想放一个带有的getter的EditText
;尽管如此,我找不到获取输入的方法。
这是 MyDialog
类:
public class MyDialog {
public static AlertDialog.Builder create( final 上下文上下文, final LayoutInflater layoutInflater, final String title, final String content){
View view = layoutInflater.inflate(R.layout .userdialog,null);
((TextView)view.findViewById(R.id.textViewTitleDialog))。setText(title);
((TextView)view.findViewById(R.id.textViewContentDialog))。setText(content);
((EditText)view.findViewById(R.id.etEmailNuevo))。getText();
return new AlertDialog.Builder(context).setView(view);
}
public String getEmailNuevo( String NewEmail){
return NewEmail;
}
}
我在 EditText
中创建而不是 setText()
,我把 getText()
;但是,我当时正在我的 Fragment
上使用这个类。 我不知道怎么称呼它。我在 Toast
中尝试了 getText()。toString();
;然而,它没有显示出来。我做错了什么?
这是我使用这个课程的地方:
AlertDialog.Builder myDialog = MyDialog.create(context,getLayoutInflater(savedInstanceState), Cambio de email, 介绍nuevo email);
myDialog.setPositiveButton(R.string.canviaruserdialog, new DialogInterface.OnClickListener(){
public void onClick(DialogInterface对话框, int id){
}
})
.setNegativeButton(R.string.cancelaruserdialog,null)
.show();
< b>编辑1
我已将代码更改为:
final AlertDialog.Builder myDialog = MyDialog.create(context,getLayoutInflater(savedInstanceState), Cambio de email, 介绍nuevo email );
final String pew = MyDialog.getEntry();
myDialog.setPositiveButton(R.string.canviaruserdialog, new DialogInterface.OnClickListener(){
public void onClick(DialogInterface对话框, int id){
Toast.makeText( getActivity(),pew,Toast.LENGTH_LONG)。show();
}
})
.setNegativeButton(R.string.cancelaruserdialog,null)
.show();
我的课程如下:
private static EditText mEditText;
public static AlertDialog.Builder create( final 上下文上下文, final LayoutInflater layoutInflater, final String title, final String content){
View view = layoutInflater.inflate (R.layout.userdialog,null);
((TextView)view.findViewById(R.id.textViewTitleDialog))。setText(title);
((TextView)view.findViewById(R.id.textViewContentDialog))。setText(content);
((EditText)view.findViewById(R.id.etEmailNuevo))。getText();
return new AlertDialog.Builder(context).setView(view);
}
public static String getEntry(){
return mEditText.getText()。toString();
}
这是 Logcat错误 :
< pre lang =java> 2927 -2927 / info.androidhive.slidingmenu E / AndroidRuntime:FATAL EXCEPTION:main
流程:info.androidhive.slidingmenu, PID: 2927
java.lang.NullPointerException:尝试调用虚方法' android.text.Editable android.widget.EditText.getText()'对空对象引用
at info.androidhive.slidingmenu.MyDialog.getEntry(MyDialog.java: 26 )
at info.androidhive.slidingmenu.ConfiguracionFragment.onClick(ConfiguracionFragment.java: 45 )
在android.view.View.performClick(View.java: 4756 )
在android.view.View $ PerformClick.run(查看.java: 19749 )
在android.os.Handler.handleCallback(Handler) .java: 739 )android.os.Handler.dispatchMessage上的
(Handler.java: 95 )
在android.os.Looper.loop(Looper.java: 135 )
在android.app.ActivityThread.main(ActivityThread。 java: 5221 )
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke (Method.java: 372 )
at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java: 899 )
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java: 694 )
编辑2
我改变了逻辑。我创建了一个 EditText
和一个 String
,如下所示:
EditText mEt;
private 字符串 m_Text = ;
这是我发起此 EditText $ c $的地方c>:
mEt =(EditText)rootView.findViewById(R.id.etEmailNuevo);
然后,我按如下方式执行 AlertDialog
:
LayoutInflater inflater = getLayoutInflater(savedInstanceState);
查看dialoglayout = inflater.inflate(R.layout.userdialog,null);
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
对话框对话框= 新对话框(getActivity());
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
final EditText input = mEt; // null< --------
输入。 setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
builder.setView(dialoglayout);
builder.setPositiveButton( Cambiar, new DialogInterface.OnClickListener(){
@ Override
public void onClick(DialogInterface对话框, int ){
m_Text =输入。 getText()。toString();
Toast.makeText(getActivity(),m_Text,Toast.LENGTH_LONG)。show();
}
});
builder.setNegativeButton( 取消,新 DialogInterface.OnClickListener(){
@ Override
public void onClick(DialogInterface对话框, int ){
dialog.cancel();
}
});
builder.show();
然而,仍然给我这个 EditText
为空。 我不知道如何将此 EditText
与 R.id链接.etEmailNuevo
来自 userdialog
。
PerformClick.run(View.java: 19749 )
在android.os.Handler.handleCallback(Handler.java: 739 )
在android.os.Handler.dispatchMessage(Handler.java: 95 )
在android.os.Looper .loop(Looper.java: 135 )
在android.app.ActivityThread.main(ActivityThread.java: 5221 )
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java: 372 )
at com.android.internal.os.ZygoteInit
MethodAndArgsCaller.run( ZygoteInit.java: 899 )
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java: 694 )
编辑2
我改变了逻辑。我创建了一个EditText
和一个String
,如下所示:
EditText mEt;
private 字符串 m_Text = ;
这是我发起此EditText $ c $的地方c>:
mEt =(EditText)rootView.findViewById(R.id.etEmailNuevo);
然后,我按如下方式执行AlertDialog
:
LayoutInflater inflater = getLayoutInflater(savedInstanceState);
查看dialoglayout = inflater.inflate(R.layout.userdialog,null);
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
对话框对话框= 新对话框(getActivity());
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
final EditText input = mEt; // null< --------
输入。 setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
builder.setView(dialoglayout);
builder.setPositiveButton( Cambiar, new DialogInterface.OnClickListener(){
@ Override
public void onClick(DialogInterface对话框, int ){
m_Text =输入。 getText()。toString();
Toast.makeText(getActivity(),m_Text,Toast.LENGTH_LONG)。show();
}
});
builder.setNegativeButton( 取消,新 DialogInterface.OnClickListener(){
@ Override
public void onClick(DialogInterface对话框, int ){
dialog.cancel();
}
});
builder.show();
然而,仍然给我这个EditText
为空。 我不知道如何将此EditText
与R.id链接.etEmailNuevo
来自userdialog
。
什么是rootView?根据你的代码逻辑,你应该使用dialoglayout而不是rootView。
TextView mEt =(EditText)dialoglayout.findViewById(R.id.etEmailNuevo); $给布局充气后,p $ p>
。
I've got two customs AlertDialog
. All work since I can't get the input of the user, I've created a class called MyDialog and put the constructor. Furthermore, I thought to put a getter with the EditText
; nevertheless, I can't find the way to get the input.
Here is MyDialog
class:
public class MyDialog {
public static AlertDialog.Builder create(final Context context, final LayoutInflater layoutInflater, final String title, final String content) {
View view = layoutInflater.inflate(R.layout.userdialog, null);
((TextView)view.findViewById(R.id.textViewTitleDialog)).setText(title);
((TextView)view.findViewById(R.id.textViewContentDialog)).setText(content);
((EditText)view.findViewById(R.id.etEmailNuevo)).getText();
return new AlertDialog.Builder(context).setView(view);
}
public String getEmailNuevo(String NewEmail) {
return NewEmail;
}
}
I've created inside the EditText
and instead of setText()
, I put getText()
; however, I'm using this class on my Fragment
at the time. I don't know how to call it. I tried with getText().toString();
inside a Toast
; nevertheless, it didn't show up. What I've done wrong?
Here is where I've used this class:
AlertDialog.Builder myDialog = MyDialog.create(context, getLayoutInflater(savedInstanceState), "Cambio de email", "Introduce nuevo email");
myDialog.setPositiveButton(R.string.canviaruserdialog, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
}
})
.setNegativeButton(R.string.cancelaruserdialog, null)
.show();
EDIT 1
I've changed my code to:
final AlertDialog.Builder myDialog = MyDialog.create(context, getLayoutInflater(savedInstanceState), "Cambio de email", "Introduce nuevo email");
final String pew = MyDialog.getEntry();
myDialog.setPositiveButton(R.string.canviaruserdialog, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Toast.makeText(getActivity(), pew, Toast.LENGTH_LONG).show();
}
})
.setNegativeButton(R.string.cancelaruserdialog, null)
.show();
And my class looks like:
private static EditText mEditText;
public static AlertDialog.Builder create(final Context context, final LayoutInflater layoutInflater, final String title, final String content) {
View view = layoutInflater.inflate(R.layout.userdialog, null);
((TextView)view.findViewById(R.id.textViewTitleDialog)).setText(title);
((TextView)view.findViewById(R.id.textViewContentDialog)).setText(content);
((EditText)view.findViewById(R.id.etEmailNuevo)).getText();
return new AlertDialog.Builder(context).setView(view);
}
public static String getEntry() {
return mEditText.getText().toString();
}
And this is the Logcat error:
2927-2927/info.androidhive.slidingmenu E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: info.androidhive.slidingmenu, PID: 2927
java.lang.NullPointerException: Attempt to invoke virtual method 'android.text.Editable android.widget.EditText.getText()' on a null object reference
at info.androidhive.slidingmenu.MyDialog.getEntry(MyDialog.java:26)
at info.androidhive.slidingmenu.ConfiguracionFragment.onClick(ConfiguracionFragment.java:45)
at android.view.View.performClick(View.java:4756)
at android.view.View$PerformClick.run(View.java:19749)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Edit 2
I've changed the logic. I've created an EditText
and a String
as follows:
EditText mEt;
private String m_Text = "";
Here is where I initiate this EditText
:
mEt = (EditText) rootView.findViewById(R.id.etEmailNuevo);
Then, I do the AlertDialog
as follows:
LayoutInflater inflater = getLayoutInflater(savedInstanceState);
View dialoglayout = inflater.inflate(R.layout.userdialog, null);
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
Dialog dialog = new Dialog(getActivity());
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
final EditText input = mEt; //null<--------
input.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
builder.setView(dialoglayout);
builder.setPositiveButton("Cambiar", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
m_Text = input.getText().toString();
Toast.makeText(getActivity(), m_Text, Toast.LENGTH_LONG).show();
}
});
builder.setNegativeButton("Cancelar", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.show();
However, it is still giving me this EditText
is null. I don't know how to link this EditText
with R.id.etEmailNuevo
from userdialog
.
PerformClick.run(View.java:19749) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit
MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Edit 2
I've changed the logic. I've created anEditText
and aString
as follows:
EditText mEt; private String m_Text = "";
Here is where I initiate thisEditText
:
mEt = (EditText) rootView.findViewById(R.id.etEmailNuevo);
Then, I do theAlertDialog
as follows:
LayoutInflater inflater = getLayoutInflater(savedInstanceState); View dialoglayout = inflater.inflate(R.layout.userdialog, null); AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); Dialog dialog = new Dialog(getActivity()); dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); final EditText input = mEt; //null<-------- input.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD); builder.setView(dialoglayout); builder.setPositiveButton("Cambiar", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { m_Text = input.getText().toString(); Toast.makeText(getActivity(), m_Text, Toast.LENGTH_LONG).show(); } }); builder.setNegativeButton("Cancelar", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); builder.show();
However, it is still giving me thisEditText
is null. I don't know how to link thisEditText
withR.id.etEmailNuevo
fromuserdialog
.
What is rootView? According to your code logic, you should use dialoglayout instead of rootView.
TextView mEt = (EditText)dialoglayout.findViewById(R.id.etEmailNuevo);
after inflating your layout.
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