Java 想让用户在开始使用android之前确认他的信息是正确的吗
你好,我是Android开发的新手。 因此,我使用一个示例进行了练习,该示例将ussd代码发送给操作员,例如充值账单。我同意 但我的主要问题是在填写PIN码后单击按钮1时显示对话框,以检查用户是否正确。 我不知道如何添加和添加什么 我的密码是- 对于MainActivity.javaJava 想让用户在开始使用android之前确认他的信息是正确的吗,java,android,dialog,Java,Android,Dialog,你好,我是Android开发的新手。 因此,我使用一个示例进行了练习,该示例将ussd代码发送给操作员,例如充值账单。我同意 但我的主要问题是在填写PIN码后单击按钮1时显示对话框,以检查用户是否正确。 我不知道如何添加和添加什么 我的密码是- 对于MainActivity.java package com.messagealert; import android.net.Uri; import android.os.Bundle; import android.app.Activity;
package com.messagealert;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity {
[MENTION=439709]override[/MENTION]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener(){
public void onClick (View v){
EditText editText1 =(EditText) findViewById(R.id.editText1);
String pin = editText1.getText().toString();
String encodedHash = Uri.encode("#");
String ussd = "*" + "124" + pin + encodedHash;
Intent button1 = new Intent(android.content.Intent.ACTION_CALL, Uri.parse("tel:" + ussd));
startActivity(button1);
}
});
}
[MENTION=439709]override[/MENTION]
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
package com.messagealert;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity {
final Context context = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener(){
public void onClick (View v){
EditText editText1 =(EditText) findViewById(R.id.editText1);
String pin = editText1.getText().toString();
AlertDialog.Builder dlgAlert = new AlertDialog.Builder(context);
dlgAlert.setTitle("PIN VERIFICATION");
dlgAlert.setMessage("Is that your PIN code -" + pin );
dlgAlert.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
String encodedHash = Uri.encode("#");
EditText editText1 =(EditText) findViewById(R.id.editText1);
String pin = editText1.getText().toString();
String ussd = "*" + "124" + pin + encodedHash;
Intent button1 = new Intent(android.content.Intent.ACTION_CALL, Uri.parse("tel:" + ussd));
startActivity(button1);
}
});
dlgAlert.setNegativeButton("NO",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
EditText editText1 =(EditText) findViewById(R.id.editText1);
editText1 .setText(" ");
}
});
dlgAlert.setCancelable(true);
dlgAlert.create().show();
};
});
}}
对于活动_main.xml
<RelativeLayout xmlns:android="h t t p://schemas. android. com/apk/res/android"
xmlns:tools="h t t p:// schemas. android. com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<EditText
android:id="@+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_marginTop="22dp"
android:layout_centerHorizontal="true"
android:ems="10"
android:inputType="number"
android:maxLength="6"
android:hint="Enter 6 numbers here"
>
<requestFocus />
</EditText>
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/editText1"
android:layout_marginTop="31dp"
android:layout_centerHorizontal="true"
android:text="@string/button1" />
</RelativeLayout>
请指导我需要放置的内容以及在何处显示对话框“是您的PIN码-xxxxxx”&是还是否
对不起,我的英语不好
非常感谢,为此,您必须像下面的代码一样添加警报框
new AlertDialog.Builder(this)
.setTitle("Delete entry")
.setMessage("Are you sure you want to delete this entry?")
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// continue with delete
}
})
.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// do nothing
}
})
.setIcon(android.R.drawable.ic_dialog_alert)
.show();
或者试试这个
AlertDialog.Builder builder1 = new AlertDialog.Builder(context);
builder1.setMessage("Write your message here.");
builder1.setCancelable(true);
builder1.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
builder1.setNegativeButton("No",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert11 = builder1.create();
alert11.show();
只需在按钮中添加对话框,然后单击“仅”
EditText editText1 =(EditText) findViewById(R.id.editText1);
Button button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener(){
public void onClick (View v){
//call dialog here and on dialog ok press start your activity
String pin = editText1.getText().toString();
String encodedHash = Uri.encode("#");
String ussd = "*" + "124" + pin + encodedHash;
Intent button1 = new Intent(android.content.Intent.ACTION_CALL, Uri.parse("tel:" + ussd));
startActivity(button1);
}
});
使用下面的代码,这将帮助您:
Button button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener(){
public void onClick (View v){
dialog();
}
});
public void dialog()
{
AlertDialog.Builder dialog = new Builder(con);
dialog.setTitle("Message:");
dialog.setMessage("Is that your PIN code - xxxxxx");
dialog.setNegativeButton("NO", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.dismiss();
}
});
dialog.setPositiveButton("YES", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
EditText editText1 =(EditText) findViewById(R.id.editText1);
String pin = editText1.getText().toString();
String encodedHash = Uri.encode("#");
String ussd = "*" + "124" + pin + encodedHash;
Intent button1 = new Intent(android.content.Intent.ACTION_CALL, Uri.parse("tel:" + ussd));
startActivity(button1);
dialog.dismiss();
}
});
dialog.show();
}
如果需要,请使用变量全局。单击按钮时,请使用警报对话框
Button button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener(){
public void onClick (View v){
EditText editText1 =(EditText) findViewById(R.id.editText1);
String pin = editText1.getText().toString();
AlertDialog.Builder dlgAlert = new AlertDialog.Builder(this);
dlgAlert.setMessage("PIN VERIFICATION");
dlgAlert.setTitle("Is that your PIN code -"+pin );
dlgAlert.setPositiveButton("OK", null);
dlgAlert.setCancelable(true);
dlgAlert.create().show();
dlgAlert.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
String encodedHash = Uri.encode("#");
String ussd = "*" + "124" + pin + encodedHash;
Intent button1 = new Intent(android.content.Intent.ACTION_CALL, Uri.parse("tel:" + ussd));
startActivity(button1);
}
});
dlgAlert.setNegativeButton("NO",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
editText1 .setText(" ");
}
});
AlertDialog.Builder dialog = new Builder(con);
dialog.setTitle("Confirm PIN");
dialog.setMessage("You have entered pincode as"+pin+"\n Please Confirm to Continue");
dialog.setNegativeButton("Edit Pin", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.dismiss();
}
});
dialog.setPositiveButton("Confirm", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
EditText editText1 =(EditText) findViewById(R.id.editText1);
String pin = editText1.getText().toString();
String encodedHash = Uri.encode("#");
String ussd = "*" + "124" + pin + encodedHash;
Intent button1 = new Intent(android.content.Intent.ACTION_CALL, Uri.parse("tel:" + ussd));
startActivity(button1);
dialog.dismiss();
}
});
dialog.show();
首先,我非常感谢你的回答。 对不起,我不能投票支持你的答案,因为我没有足够的声誉 通过修改MSS的答案,我在MainActivity.java中做了一些改变
package com.messagealert;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity {
[MENTION=439709]override[/MENTION]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener(){
public void onClick (View v){
EditText editText1 =(EditText) findViewById(R.id.editText1);
String pin = editText1.getText().toString();
String encodedHash = Uri.encode("#");
String ussd = "*" + "124" + pin + encodedHash;
Intent button1 = new Intent(android.content.Intent.ACTION_CALL, Uri.parse("tel:" + ussd));
startActivity(button1);
}
});
}
[MENTION=439709]override[/MENTION]
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
package com.messagealert;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity {
final Context context = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener(){
public void onClick (View v){
EditText editText1 =(EditText) findViewById(R.id.editText1);
String pin = editText1.getText().toString();
AlertDialog.Builder dlgAlert = new AlertDialog.Builder(context);
dlgAlert.setTitle("PIN VERIFICATION");
dlgAlert.setMessage("Is that your PIN code -" + pin );
dlgAlert.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
String encodedHash = Uri.encode("#");
EditText editText1 =(EditText) findViewById(R.id.editText1);
String pin = editText1.getText().toString();
String ussd = "*" + "124" + pin + encodedHash;
Intent button1 = new Intent(android.content.Intent.ACTION_CALL, Uri.parse("tel:" + ussd));
startActivity(button1);
}
});
dlgAlert.setNegativeButton("NO",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
EditText editText1 =(EditText) findViewById(R.id.editText1);
editText1 .setText(" ");
}
});
dlgAlert.setCancelable(true);
dlgAlert.create().show();
};
});
}}
你们帮了我大忙
关于,感谢您的帮助,但是我遇到了一个错误,
new Builder(此)
-错误是构造函数AlertDialog.Builder(new View.OnClickListener(){})未定义