Elementary school arithmetic mental arithmetic practice app---No.4

Today, the main thing is to change the location of the various components in the page and the time of the reception and Time control, the code is as follows: (but there is a problem setting page Click OK button to enter the topic screen sometimes flash back, unresolved!) ）

Calculatoractivity.class

Package com.example.mmmjh.calculator;
Import Android.os.Build;
Import Android.os.Bundle;
Import Java.util.Random;
Import Android.os.Bundle;
Import Android.os.SystemClock;
Import Android.app.AlertDialog;
Import android.app.Activity;
Import android.content.Intent;
Import Android.support.annotation.RequiresApi;
Import Android.text.InputType;
Import Android.text.TextUtils;
Import Android.view.Menu;
Import Android.view.MenuItem;
Import Android.view.View;
Import Android.view.View.OnClickListener;
Import Android.content.DialogInterface;
Import Android.widget.Button;
Import Android.widget.Chronometer;
Import Android.widget.Chronometer.OnChronometerTickListener;
Import Android.widget.EditText;
Import Android.widget.LinearLayout;
Import Android.widget.TextView;
Import Android.view.ViewGroup;
Import Android.widget.RelativeLayout;
;
public class Calculatoractivity extends Activity {

@Override
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.activity_calculator);

LinearLayout linearlayout = (linearlayout) Findviewbyid (r.id.viewobj);
Relativelayout relativelayout = new Relativelayout (this);

Intent Inten = Getintent ();
Bundle bundle = Inten.getextras ();
String Tishu = bundle.getstring ("Tishu");//receive the number of topics passed over

String min = bundle.getstring ("minute");
String sec = bundle.getstring ("second");//Receive Time

int i1 = 0, minute = 0, second = 0;
try {
I1 = Integer.parseint (Tishu);//i1 here is the number of topics in the Shaping value
minute = Integer.parseint (min);
Second = Integer.parseint (sec);
} catch (NumberFormatException e) {
E.printstacktrace ();
}


Final edittext[] input = new EDITTEXT[I1];
textview[] Showti = new TEXTVIEW[I1];
Final int[] shu1 = new INT[I1];
Final int[] Shu2 = new INT[I1];
Final int[] result = new INT[I1];
Final string[] user = new STRING[I1];
Final string[] show = new STRING[I1];
LinearLayout ll = (linearlayout) Findviewbyid (r.id.viewobj);

Random r = new Random ();
char[] ch = {' + ', '-', ' x ', ' ÷ '}; Character array

Final chronometer ch1 = new Chronometer (this);
Ch1.setbase (Systemclock.elapsedrealtime ());
Ch1.setformat ("Time used:%s");
Ch1.start ();
Ll.addview (CH1);
for (int i = 0; i < I1; i++) {
int index = R.nextint (ch.length); Random number, less than the length of the array, 0~3
Char flag = ch[index];//Get operation symbol
String d = string.valueof (flag);//Operator
Show[i] = "";
int a = (int) (Math.random () * 100);
int b = (int) (Math.random () * 100);

Shu1[i] = A;
Shu2[i] = b;

while ((D.equals ("+") && (A + B > 100)) | | (D.equals ("-") && (A-b <= 0)) | | (D.equals ("x") && (A > 9 | | A < 1 | | b > 9 | | b < 1)) | | (D.equals ("÷") && (A/b > 9 | | A% b! = 0 | | a > Bayi | | b > 9 | | A < b))) {
A = (int) (Math.random () * 100);
b = (int) (Math.random () * 100);
}

if (d.equals ("+"))
Result[i] = a + b;
else if (d.equals ("-"))
Result[i] = a-B;
else if (D.equals ("X"))
Result[i] = a * b;
Else
Result[i] = A/b;
String sa = integer.tostring (a);
String sb = integer.tostring (b);
Showti[i] = new TextView (this);
Show[i] + = "\ n" + sa + D + sb + "=";
Showti[i].settextsize (20);
Showti[i].settext (Show[i]);
Showti[i].setid (View.generateviewid ());
Input[i] = new EditText (this);
Input[i].settextsize (25);
Input[i].setinputtype (Inputtype.type_class_number);
Input[i].setid (View.generateviewid ());
Input[i].setems (6);
Relativelayout.layoutparams Layoutparams =
New Relativelayout.layoutparams (ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
if (i = = 0)
{
Layoutparams.setmargins (250,0,0,0);
Showti[i].setlayoutparams (Layoutparams);
Relativelayout.addview (Showti[i]);
}
else {
Layoutparams.addrule (Relativelayout.below,showti[i-1].getid ());
Layoutparams.setmargins (250,0,0,0);
Showti[i].setlayoutparams (Layoutparams);
Relativelayout.addview (Showti[i]);
}

Layoutparams =
New Relativelayout.layoutparams (ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
Layoutparams.addrule (Relativelayout.right_of,showti[i].getid ());
if (i! = 0) Layoutparams.addrule (Relativelayout.below,showti[i-1].getid ());
Input[i].setlayoutparams (Layoutparams);
Relativelayout.addview (Input[i]);
}
Linearlayout.addview (relativelayout);
Final button finish = New button (this);
Finish.settext ("Done");
Linearlayout.layoutparams Layoutparams =
New Linearlayout.layoutparams (ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
Finish.setlayoutparams (Layoutparams);
Linearlayout.addview (finish);

Final int timeover = minute * + second;

Ch1.setonchronometerticklistener (New Onchronometerticklistener () {
@Override
public void Onchronometertick (Chronometer arg0) {
TODO auto-generated Method Stub
if (Systemclock.elapsedrealtime ()-ch1.getbase () >=timeover*1000) {
Alertdialog.builder builder1 = new Alertdialog.builder (calculatoractivity.this)
. Setmessage ("Time to!" ")
. Setpositivebutton ("Confirm", new Dialoginterface.onclicklistener () {
public void OnClick (Dialoginterface dialog, int which) {

for (int i = 0; i < shu1.length; i++) {
if (Textutils.isempty (Input[i].gettext ())) {
User[i] = "not answered";
} else {
User[i] = Input[i].gettext (). toString ();
}
}
                                 
Intent Intent = new Intent ();
                                   
Intent.setclass (Calculatoractivity.this, resultactivity.class);//Jump
StartActivity (Intent);
CalculatorActivity.this.finish ();
Dialog.dismiss ();
}
});

Builder1.create (). Show ();

Finish.callonclick ();
}

}
});

Finish.setonclicklistener (New Onclicklistener () {

@Override
public void OnClick (View arg0) {//Touch button Event Completion page jump into answer page
TODO auto-generated Method Stub

for (int i = 0; i < user.length; i++) {
if (Textutils.isempty (Input[i].gettext ())) {
User[i] = "not answered";
} else {
User[i] = Input[i].gettext (). toString ();
}
}
Ch1.stop ();
               
if (Systemclock.elapsedrealtime ()-ch1.getbase () <timeover*1000) {
Intent.setclass (Calculatoractivity.this, resultactivity.class);//Jump
StartActivity (Intent);
CalculatorActivity.this.finish ();//comment on this sentence press the back button on your phone to return to the previous layer
}
}
});
}
}

The results are as follows:

Layout page: Activity_calculator

<?xml version= "1.0" encoding= "Utf-8"?>
<scrollview xmlns:android= "Http://schemas.android.com/apk/res/android"
Xmlns:tools= "Http://schemas.android.com/tools"
android:background= "@mipmap/qq"
Android:layout_width= "Match_parent"
android:layout_height= "Match_parent" >
tools:context= ". Resultactivity" >



<!--TextView
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
Android:layout_gravity= "Center_horizontal"
android:text= "title"/-->
<linearlayout
Android:id= "@+id/viewobj"
Android:layout_width= "Match_parent"
android:layout_height= "Match_parent"
android:orientation= "Vertical"
Android:textsize= "25SP"
Android:textcolor= "#7300ff"
android:layout_x= "1px"
android:layout_y= "1px"/>

</ScrollView>


This time with the popup box setting, there are two main styles of toast and alert. How to use this article: http://blog.csdn.net/dearmali/article/details/49885759

Android offers commonly used message popups, toast and alert.

Elementary school arithmetic mental arithmetic practice app---No.4