![](/img/trans.png)
[英]Running android studio app on physical device "ERROR IN NETWORK CONNECTION"
[英]Simple guess the number game app on android studio. When running the apk in my physical device it force closes instantly
我正在做一個簡單的猜數字游戲。 我希望它在開始時生成一個隨機數。 然后當我輸入一個數字並確認它會檢查它是否與生成的隨機數匹配。 你有 5 次機會,當你弄錯時,它會從 5 次中扣除一次嘗試。當我按下重試時,我希望重置隨機數和嘗試計數。 XML 文件如下 [這是應用程序布局][1]
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="cursive"
android:text="@string/the_guessing_game"
android:textColor="#519169"
android:textSize="36sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias="0.474"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.074" />
<EditText
android:id="@+id/editTextTextPersonName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="372dp"
android:ems="10"
android:inputType="textPersonName"
android:text="@string/number"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.497"
app:layout_constraintStart_toStartOf="parent"
android:autofillHints="" />
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/are_you_ready_guess_a_number_between_1_20_and_confirm"
app:layout_constraintBottom_toTopOf="@+id/editTextTextPersonName"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.495"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.888" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/confirm"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/editTextTextPersonName"
app:layout_constraintVertical_bias="0.259"
android:onClick="onConfirmClick"/>
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/retry"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.976"
android:onClick="onRetryClick"/>
</androidx.constraintlayout.widget.ConstraintLayout>
這是我的主要 java 文件
package com.example.myapplication;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import java.util.Random;
import java.util.Scanner;
public class MainActivity extends AppCompatActivity {
Random random = new Random();
int number = random.nextInt(20);
int tries = 5;
TextView result = findViewById(R.id.textView);
EditText confirm = findViewById(R.id.editTextTextPersonName);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void onConfirmClick (View view){
int pass = Integer.parseInt(confirm.getText().toString());
if (tries >= 0) {
confirm.setText("Sorry your chances are over. Please retry");
} else {
if (pass != number) {
tries = tries - 1;
confirm.setText("That's kinda wrong. chances remaining: " + tries);
} else if (pass == number) {
confirm.setText("NICE. your answer is correct!. press retry to play again.");
} else {
confirm.setText("Don't you understand what a number is?");
}
}
}
public void onRetryClick (View view){
number = random.nextInt(20);
tries = 5;
}
}
我似乎無法找到問題所在。 一切似乎都很好,但 apk 強制關閉。 提前感謝您的幫助。
Edit: i checked all the ide given errors. I corrected those. Still its not running
[1]: https://i.stack.imgur.com/5K6ZE.png
findViewById 應該進入 onCreate 請嘗試以這種方式使用它。 如果您仍然遇到崩潰 Go 到運行選項卡,該選項卡將出現在下方並從那里共享到錯誤。 如果此解決方案對您有幫助,請標記為正確。 謝謝你..
public class MainActivity extends AppCompatActivity {
Random random = new Random();
int number = random.nextInt(20);
int tries = 5;
TextView result;
EditText confirm;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
result = findViewById(R.id.textView);
confirm = findViewById(R.id.editTextTextPersonName);
}
public void onConfirmClick (View view){
int pass = Integer.parseInt(confirm.getText().toString());
if (tries >= 0) {
confirm.setText("Sorry your chances are over. Please retry");
} else {
if (pass != number) {
tries = tries - 1;
confirm.setText("That's kinda wrong. chances remaining: " + tries);
} else if (pass == number) {
confirm.setText("NICE. your answer is correct!. press retry to play again.");
} else {
confirm.setText("Don't you understand what a number is?");
}
}
}
public void onRetryClick (View view){
number = random.nextInt(20);
tries = 5;
}
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.