Java 文本视图'；s字符串设置错误-如何修复它？
我在安卓工作室工作了大约五周。在这段时间里，我学习了如何设置TextView的字符串并设置包含该字符串的字符串变量。我一直在尝试为android设备制作一款应用程序游戏，在更改一些代码时遇到了一个问题 textView myText应该指定要按下的彩色按钮，但当我在android emulator中按下开始按钮时，随机生成的文本和按钮永远不会相互关联，即使我有一系列的if语句来确保它们相互关联 出于某种原因，当我运行代码时，第一个颜色按钮始终是正确的按钮，然后运行方法颜色开关（如果正确），但我不知道将正确的颜色按钮连接到正确的文本有什么问题。哦，我把这个活动和一个失败游戏活动联系起来，当按下任何错误的按钮时就会调用这个活动。如果您想要其他活动的代码，我很乐意展示 以下是我的游戏活动xml文件：Java 文本视图'；s字符串设置错误-如何修复它？,java,android,Java,Android,我在安卓工作室工作了大约五周。在这段时间里，我学习了如何设置TextView的字符串并设置包含该字符串的字符串变量。我一直在尝试为android设备制作一款应用程序游戏，在更改一些代码时遇到了一个问题 textView myText应该指定要按下的彩色按钮，但当我在android emulator中按下开始按钮时，随机生成的文本和按钮永远不会相互关联，即使我有一系列的if语句来确保它们相互关联 出于某种原因，当我运行代码时，第一个颜色按钮始终是正确的按钮，然后运行方法颜色开关（如果正确），但我不
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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:id="@+id/game_activity"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.a2118667.red.MainActivity"
tools:layout_editor_absoluteX="0dp"
android:layout_marginTop="0dp"
app:layout_constraintTop_toBottomOf="@+id/indicatorText">
<Button
android:id="@+id/startButton"
android:layout_width="175dp"
android:layout_height="75dp"
android:layout_marginTop="8dp"
android:text="@string/Game_Start_Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias="0.502"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.156" />
<GridLayout
android:id="@+id/gridLayout"
android:layout_width="299dp"
android:layout_height="301dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias="0.505"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.88">
<Button
android:id="@+id/button1"
android:layout_width="150dp"
android:layout_height="150dp" />
<Button
android:id="@+id/button3"
android:layout_width="150dp"
android:layout_height="150dp"
android:layout_column="0"
android:layout_row="1" />
<Button
android:id="@+id/button2"
android:layout_width="150dp"
android:layout_height="150dp"
android:layout_column="1"
android:layout_row="0" />
<Button
android:id="@+id/button4"
android:layout_width="150dp"
android:layout_height="150dp"
android:layout_column="1"
android:layout_row="1" />
</GridLayout>
<TextView
android:id="@+id/indicatorText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:text=" "
android:textAppearance="@style/TextAppearance.AppCompat.Button"
android:textSize="34sp"
app:layout_constraintBottom_toTopOf="@+id/startButton"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintHorizontal_bias="0.501"
app:layout_constraintVertical_bias="1.0" />
</android.support.constraint.ConstraintLayout>
package com.example.a2118667.red;
//imports
import android.content.Intent;
import android.support.v4.media.session.MediaSessionCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.view.MotionEvent;
import android.view.GestureDetector;
import android.support.v4.view.GestureDetectorCompat;
import android.widget.TextView;
import java.util.Random;
import static com.example.a2118667.red.R.id.startButton;
public class MainActivity extends AppCompatActivity {
final int[] cowbears = {0};
final int[] cowbears2 = {0};
@Override
protected void onCreate (Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final TextView myText = (TextView) findViewById(R.id.indicatorText);
final Button myButton = (Button) findViewById(R.id.startButton);
final Button button1 = (Button) findViewById(R.id.button1);
final Button button2 = (Button) findViewById(R.id.button2);
final Button button3 = (Button) findViewById(R.id.button3);
final Button button4 = (Button) findViewById(R.id.button4);
myButton.setOnClickListener(
new Button.OnClickListener() {
public void onClick(View v) {
((ViewGroup) myButton.getParent()).removeView(myButton);
colourSwitch();
}
}
);
button4.setOnClickListener(
new Button.OnClickListener() {
public void onClick(View v) {
myText.setText("cowBears rock");
// if button says yellow and button is yellow
if (cowbears[0] == 2 && cowbears2[0] <= 1 || cowbears[0] == 6 && cowbears2[0] <= 1) {
myText.setText("You did it, mommy!");
}
// if button says blue and button blue
if (cowbears[0] == 3 && cowbears2[0] == 2 || cowbears[0] == 7 && cowbears2[0] == 2) {
myText.setText("You did it, mommy!");
}
// if button says green and button green
if (cowbears[0] == 4 && cowbears2[0] == 3 || cowbears[0] == 8 && cowbears2[0] == 3) {
myText.setText("You did it, mommy!");
}
// if button says red and button red
if (cowbears[0] <= 1 && cowbears2[0] == 4 || cowbears[0] == 5 && cowbears2[0] == 4) {
myText.setText("You did it, mommy!");
}
String verify = myText.getText().toString();
if (verify.equals("cowBears rock")){
losedThegameBoi();
}
String check = myText.getText().toString();
if (check.equals("You did it, mommy!")) {
colourSwitch();
}
}
}
);
button3.setOnClickListener(
new Button.OnClickListener() {
public void onClick(View v) {
myText.setText("cowBears rock");
// if button says yellow and button is yellow
if (cowbears[0] == 3 && cowbears2[0] <= 1 || cowbears[0] == 8 && cowbears2[0] <= 1) {
myText.setText("You did it, mommy!");
}
// if button says blue and button blue
if (cowbears[0] == 4 && cowbears2[0] == 2 || cowbears[0] == 5 && cowbears2[0] == 2) {
myText.setText("You did it, mommy!");
}
// if button says green and button green
if (cowbears[0] <= 1 && cowbears2[0] == 3 || cowbears[0] == 6 && cowbears2[0] == 3) {
myText.setText("You did it, mommy!");
}
// if button says red and button red
if (cowbears[0] == 2 && cowbears2[0] == 4 || cowbears[0] == 7 && cowbears2[0] == 4) {
myText.setText("You did it, mommy!");
}
String verify = myText.getText().toString();
if (verify.equals("cowBears rock")){
losedThegameBoi();
}
String check = myText.getText().toString();
if (check.equals("You did it, mommy!")) {
colourSwitch();
}
}
}
);
button2.setOnClickListener(
new Button.OnClickListener() {
public void onClick(View v) {
myText.setText("cowBears rock");
// if button says yellow and button yellow
if (cowbears[0] == 4 && cowbears2[0] <= 1 || cowbears[0] == 7 && cowbears2[0] <= 1) {
myText.setText("You did it, mommy!");
}
// if button says blue and button blue
if (cowbears[0] <= 1 && cowbears2[0] == 2 || cowbears[0] == 8 && cowbears2[0] == 2) {
myText.setText("You did it, mommy!");
}
// if button says green and button green
if (cowbears[0] == 2 && cowbears2[0] == 3 || cowbears[0] == 5 && cowbears2[0] == 3) {
myText.setText("You did it, mommy!");
}
// if button says red and button red
if (cowbears[0] == 3 && cowbears2[0] == 4 || cowbears[0] == 6 && cowbears2[0] == 4) {
myText.setText("You did it, mommy!");
}
String verify = myText.getText().toString();
if (verify.equals("cowBears rock")){
losedThegameBoi();
}
String check = myText.getText().toString();
if (check.equals("You did it, mommy!")) {
colourSwitch();
}
}
}
);
// onClick Listeners for buttons
button1.setOnClickListener(
new Button.OnClickListener() {
public void onClick(View v) {
//debugged
myText.setText("cowBears rock");
// if button says yellow and button yellow
if (cowbears[0] <= 1 && cowbears2[0] <= 1 || cowbears[0] == 5 && cowbears2[0] <= 1) {
myText.setText("You did it, mommy!");
}
// if button says blue and button blue
if (cowbears[0] == 2 && cowbears2[0] == 2 || cowbears[0] == 6 && cowbears2[0] == 2) {
myText.setText("You did it, mommy!");
}
// if button says green and button green
if (cowbears[0] == 3 && cowbears2[0] == 3 || cowbears[0] == 7 && cowbears2[0] == 3) {
myText.setText("You did it, mommy!");
}
// if button says red and button red
if (cowbears[0] == 4 && cowbears2[0] == 4 || cowbears[0] == 8 && cowbears2[0] == 4) {
myText.setText("You did it, mommy!");
}
String verify = myText.getText().toString();
if (verify.equals("cowBears rock")){
losedThegameBoi();
}
String check = myText.getText().toString();
if (check.equals("You did it, mommy!")) {
colourSwitch();
}
}
}
);
}
private void losedThegameBoi() {
Intent intent = new Intent(this, Loser_Activity.class);
startActivity(intent);
}
private void colourSwitch() {
final TextView myText = (TextView) findViewById(R.id.indicatorText);
final Button button1 = (Button) findViewById(R.id.button1);
final Button button2 = (Button) findViewById(R.id.button2);
final Button button3 = (Button) findViewById(R.id.button3);
final Button button4 = (Button) findViewById(R.id.button4);
final int[] cowBears = {0};
final int[] cowBears2 = {0};
final int[] cowbears = {0};
final int[] cowbears2 = {0};
//Random number generator for randomizing colour layout
Random randomGenerator = new Random();
//For generating what colour pattern to be displayed
int randomInt = randomGenerator.nextInt(9);
myText.setText("Generated : " + randomInt);
cowBears[0] = randomInt;
cowbears[0] = randomInt;
//Colour patterns based on what integer is generated
//Random number generator for randomizing button click stuff
Random randomGenerator2 = new Random();
//For generating which text to be displayed
int randomInt2 = randomGenerator2.nextInt(5);
myText.setText("Generated : " + randomInt2);
cowBears2[0] = randomInt2;
cowbears2[0] = randomInt2;
// if statements for the colour scheme
if (cowBears[0] <= 1) {
button1.setBackgroundResource(R.drawable.yellow);
button2.setBackgroundResource(R.drawable.blue);
button3.setBackgroundResource(R.drawable.green);
button4.setBackgroundResource(R.drawable.download);
}
if (cowBears[0] == 2) {
button4.setBackgroundResource(R.drawable.yellow);
button1.setBackgroundResource(R.drawable.blue);
button2.setBackgroundResource(R.drawable.green);
button3.setBackgroundResource(R.drawable.download);
}
if (cowBears[0] == 3) {
button3.setBackgroundResource(R.drawable.yellow);
button4.setBackgroundResource(R.drawable.blue);
button1.setBackgroundResource(R.drawable.green);
button2.setBackgroundResource(R.drawable.download);
}
if (cowBears[0] == 4) {
button2.setBackgroundResource(R.drawable.yellow);
button3.setBackgroundResource(R.drawable.blue);
button4.setBackgroundResource(R.drawable.green);
button1.setBackgroundResource(R.drawable.download);
}
if (cowBears[0] == 5) {
button1.setBackgroundResource(R.drawable.yellow);
button3.setBackgroundResource(R.drawable.blue);
button2.setBackgroundResource(R.drawable.green);
button4.setBackgroundResource(R.drawable.download);
}
if (cowBears[0] == 6) {
button4.setBackgroundResource(R.drawable.yellow);
button1.setBackgroundResource(R.drawable.blue);
button3.setBackgroundResource(R.drawable.green);
button2.setBackgroundResource(R.drawable.download);
}
if (cowBears[0] == 7) {
button2.setBackgroundResource(R.drawable.yellow);
button4.setBackgroundResource(R.drawable.blue);
button1.setBackgroundResource(R.drawable.green);
button3.setBackgroundResource(R.drawable.download);
}
if (cowBears[0] == 8) {
button3.setBackgroundResource(R.drawable.yellow);
button2.setBackgroundResource(R.drawable.blue);
button4.setBackgroundResource(R.drawable.green);
button1.setBackgroundResource(R.drawable.download);
}
//Here we have the randomizing of the button text based on what integer is genetated for cowbears2
if (cowBears2[0] <= 1) {
myText.setText("yellow" + cowBears[0] + cowBears2[0]);
}
if (cowBears2[0] == 2) {
myText.setText("Blue" + cowBears[0] + cowBears2[0]);
}
if (cowBears2[0] == 3) {
myText.setText("Green" + cowBears[0] + cowBears2[0]);
}
if (cowBears2[0] == 4) {
myText.setText("Red" + cowBears[0] + cowBears2[0]);
}
}
}
package com.example.a2118667.red；
//进口
导入android.content.Intent；
导入android.support.v4.media.session.MediaSessionCompat；
导入android.support.v7.app.AppActivity；
导入android.os.Bundle；
导入android.view.view；
导入android.view.ViewGroup；
导入android.widget.Button；
导入android.view.MotionEvent；
导入android.view.GestureDetector；
导入android.support.v4.view.GestureDetectorCompat；
导入android.widget.TextView；
导入java.util.Random；
导入静态com.example.a2118667.red.R.id.startButton；
公共类MainActivity扩展了AppCompatActivity{
final int[]cowbears={0}；
final int[]cowbears2={0}；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_main）；
最终文本视图myText=（文本视图）findViewById（R.id.indicatorText）；
最终按钮myButton=（按钮）findViewById（R.id.startButton）；
最终按钮button1=（按钮）findViewById（R.id.button1）；
最终按钮button2=（按钮）findViewById（R.id.button2）；
最终按钮button3=（按钮）findViewById（R.id.button3）；
最终按钮button4=（按钮）findViewById（R.id.button4）；
myButton.setOnClickListener(
新建按钮。OnClickListener（）{
公共void onClick（视图v）{
（（ViewGroup）myButton.getParent（））.removeView（myButton）；
颜色开关（）；
}
}
);
按钮4.setOnClickListener(
新建按钮。OnClickListener（）{
公共void onClick（视图v）{
myText.setText（“牛熊岩”）；
//若按钮显示为黄色，则按钮为黄色
如果（牛熊[0]==2&&cowbears2[0]我找到了答案。你看，我的牛熊和牛熊整数的随机化方式不同
cowBears、cowBears 2、cowBears和cowBears 2最终整数必须直接在onCreate方法上方声明，因为在按下按钮的过程中会重新声明大写的cowBear整数。我不确定它是否有效，但更改private
（或public
）的最终语句语句，然后再次运行应用程序。代码对我来说似乎没问题。