Thank you Dan. It's nice. I just try not to bother you.
Please see Resume_reading.java (I don't post grammar.java in another package
because it runs well)
*Resume.java :*
package com.google.tung.englishtest.reading;
import com.google.tung.englishtest.R;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class Resume_reading extends Activity {
static char[] AnswerList = new char[10];
char[] RightAnswerList = new
char[]{'a','c','c','a','b','c','a','b','c','b'};
TextView[] AnswerTextView = new TextView[10];
TextView ResultTextView;
TextView Right_Answer_Number;
protected void onCreate(Bundle icicle)
{
super.onCreate(icicle);
setContentView(R.layout.result_reading);
setAnswerList();
setAnswerListTextView();
ResultTextView =
(TextView)this.findViewById(R.id.result_reading_passed);
Right_Answer_Number =
(TextView)this.findViewById(R.id.number_right_answer_reading);
setResult();
Button ReviewButton =
(Button)findViewById(R.id.button_review_reading);
ReviewButton.setOnClickListener(reviewClick);
Button takeAnotherPartButton =
(Button)findViewById(R.id.take_another_part_reading);
takeAnotherPartButton.setOnClickListener(takeAnotherPart);
}
private void setAnswerList() {
//assign AnswerList[10]
AnswerList[0] = Cau_1_reading.getCau_1_Answer();
AnswerList[1] = Cau_2_reading.getCau_2_Answer();
AnswerList[2] = Cau_3_reading.getCau_3_Answer();
AnswerList[3] = Cau_4_reading.getCau_4_Answer();
AnswerList[4] = Cau_5_reading.getCau_5_Answer();
AnswerList[5] = Cau_6_reading.getCau_6_Answer();
AnswerList[6] = Cau_7_reading.getCau_7_Answer();
AnswerList[7] = Cau_8_reading.getCau_8_Answer();
AnswerList[8] = Cau_9_reading.getCau_9_Answer();
AnswerList[9] = Cau_10_reading.getCau_10_Answer();
}
private void setAnswerListTextView() {
// Identify TextView on "Your answer:" column
AnswerTextView[0]=(TextView)this.findViewById(R.id.cau_1_answer_reading);
AnswerTextView[1]=(TextView)this.findViewById(R.id.cau_2_answer_reading);
AnswerTextView[2]=(TextView)this.findViewById(R.id.cau_3_answer_reading);
AnswerTextView[3]=(TextView)this.findViewById(R.id.cau_4_answer_reading);
AnswerTextView[4]=(TextView)this.findViewById(R.id.cau_5_answer_reading);
AnswerTextView[5]=(TextView)this.findViewById(R.id.cau_6_answer_reading);
AnswerTextView[6]=(TextView)this.findViewById(R.id.cau_7_answer_reading);
AnswerTextView[7]=(TextView)this.findViewById(R.id.cau_8_answer_reading);
AnswerTextView[8]=(TextView)this.findViewById(R.id.cau_9_answer_reading);
AnswerTextView[9]=(TextView)this.findViewById(R.id.cau_10_answer_reading);
// Display answer in "Your answer:" column
for(int i=0;i<=9;i++){
AnswerTextView[i].setText(Character.toString(AnswerList[i]));
}
}
private void setResult() {
//Display result : Passed or not Passed
int Result = 0;
for(int i=0;i<=9;i++){
if (AnswerList[i] == RightAnswerList[i]) {Result++;}
}
if (Result>=5) {ResultTextView.setText("Passed");}
else {ResultTextView.setText("Not passed");};
Right_Answer_Number.setText(Integer.toString(Result));
}
private OnClickListener reviewClick = new OnClickListener()
{
public void onClick(View v)
{
// Here we start the next activity
Intent intent = new Intent();
intent.setClass(Resume_reading.this, Cau_1_reading.class);
startActivity(intent);
finish();
}
};
private OnClickListener takeAnotherPart = new OnClickListener()
{
public void onClick(View v)
{
// Here we start the next activity
Intent intent = new Intent();
intent.setClass(Resume_reading.this,com.google.tung.englishtest.Introduction.class);
startActivity(intent);
finish();
}
};
}
*result_reading.xml* :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="vertical"
>
<TableLayout
id="@+id/table_result_1_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="vertical"
>
<TableRow
id="@+id/result_head_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
id="@+id/result_head_question_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="Question :"
>
</TextView>
<TextView
id="@+id/result_head_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="Your answer :"
>
</TextView>
<TextView
id="@+id/result_head_right_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="Right answer :"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_1_row_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="1"
>
</TextView>
<TextView
id="@+id/cau_1_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_1_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="a"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_2_row_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="2"
>
</TextView>
<TextView
id="@+id/cau_2_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_2_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="c"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_3_row_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="3"
>
</TextView>
<TextView
id="@+id/cau_3_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_3_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="c"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_4_row_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="4"
>
</TextView>
<TextView
id="@+id/cau_4_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_4_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="a"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_5_row_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="5"
>
</TextView>
<TextView
id="@+id/cau_5_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_5_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="b"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_6_row_reading"
android:layout_width="275px"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="6"
>
</TextView>
<TextView
id="@+id/cau_6_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_6_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="c"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_7_row_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="7"
>
</TextView>
<TextView
id="@+id/cau_7_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_7_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="a"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_8_row_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="8"
>
</TextView>
<TextView
id="@+id/cau_8_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_8_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="b"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_9_row_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="9"
>
</TextView>
<TextView
id="@+id/cau_9_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_9_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="c"
>
</TextView>
</TableRow>
<TableRow
id="@+id/cau_10_row_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="10"
>
</TextView>
<TextView
id="cau_10_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
<TextView
id="@+id/cau_10_result_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="b"
>
</TextView>
</TableRow>
</TableLayout>
<TableLayout
id="@+id/table_result_2_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:layout_below="@+id/table_result_1_reading"
>
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="Number of right answers :"
>
</TextView>
<TextView
id="@+id/number_right_answer_reading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:text="Result :"
>
</TextView>
<TextView
id="@+id/result_reading_passed"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
>
</TextView>
</TableRow>
</TableLayout>
<TableLayout
id="@+id/table_result_3_reading"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="vertical"
android:layout_below="@+id/table_result_2_reading"
>
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
>
<Button
id="@+id/button_review_reading"
android:layout_width="wrap_content"
android:layout_height="30px"
android:text="Review in detail"
>
</Button>
<Button
id="@+id/take_another_part_reading"
android:layout_width="wrap_content"
android:layout_height="30px"
android:text="Take another part"
>
</Button>
</TableRow>
</TableLayout>
</RelativeLayout>
By the way, last time you taught me to use the back button (available on the
phone) to return to the previous page. Could you tell me precisely where to
implement the onClickListener, there is not a widget to implement for this
functionality ? I tried your last instruction but it doesn't work
Please let me know if you have any question !
Tung.
On Fri, Apr 4, 2008 at 2:45 PM, Dan U. <[EMAIL PROTECTED]> wrote:
>
> Without seeing the code, it's quite difficult to find the problem.
>
> On Apr 4, 12:38 am, "LE THANH TUNG" <[EMAIL PROTECTED]> wrote:
> > Hi
> >
> > I tried to fix my null pointer exception 3 days but I don't success,
> please
> > help me.
> >
> > I have 2 classes Resume_grammar.java and Resume_reading_java in 2
> differrent
> > packages, same code but different widget id. The Resume_grammar runs
> well
> > but the Resume_reading get Null Pointer Exception. All variables are
> private
> > and default, no inheritance. All id are unique...
> >
> > Is there any possible coming from Android ?, or please help me if you
> can
> > guess a cause for me to check. I spent 3 whole days but not find the
> cause.
> >
> > --
> > Many thanks and regards
> > LÊ THANH TÙNG
> > Da Nang, Vietnam
> >
>
--
Many thanks and regards
LÊ THANH TÙNG
Da Nang, Vietnam
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