我将字符串数组链接到一个变量，并且我有一个按钮，该按钮将索引加1，并将textView设置为字符串数组变量[index]，这样我就可以通过以下方式在字符串数组中显示项目列表一个，但是当我按下按钮时，什么也没有发生，并且ViewPostIme0和ViewPostIme指针1一直在我的logcat中循环
我尝试了一切
我已经尝试将代码简化为最短的代码，但仍然无法正常工作
简化代码
int index = 0;
Button btn_message;
btn_message = findViewById(R.id.btn_message);
public void onClick(View v) {
switch (v.getId()) {
case (R.id.btn_message):
//if changes in the same page
index++;
btn_message.setText(String.valueOf(messages[index]));
}
}
完整代码
package com.example.project;
import android.content.Intent;
import android.content.res.Resources;
import android.support.constraint.ConstraintLayout;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
Button btn_message, btn_skip;
String[] messages, personal_name;
ImageView LeftImage, RightImage, BackgroundImage;
String name;
TextView test, txt_round;
int index ;
int character;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Importing values
final Intent intent2 = getIntent();
index = intent2.getIntExtra("index", 0);
Intent intent_name = getIntent();
name = intent_name.getStringExtra("name");
//get string array
personal_name = getResources().getStringArray(R.array.name);
messages = getResources().getStringArray(R.array.text);
//find view by id
btn_message = findViewById(R.id.btn_message);
LeftImage = findViewById(R.id.img_left);
RightImage = findViewById(R.id.img_right);
BackgroundImage = findViewById(R.id.img_Background);
test = findViewById(R.id.txtx_Test);
btn_skip = findViewById(R.id.btn_skip);
txt_round = findViewById(R.id.txt_round);
String testing = String.valueOf(index);
test.setText(testing);
testing = String.valueOf(index);
test.setText(testing);
//set Value to varibles
//if image come to main, use this to change things
switch (index) {
case (200):
//BackgroundImage.setImageResource(R.mipmap.);
btn_message.setText(String.valueOf(messages[index]));
break;
}
/* case (13):
test.setText("success");
btn_message.setText(String.valueOf(messages[index]));
break;
case (20):
test.setText("Success2");
btn_message.setText(String.valueOf(messages[index]));
break;
}*/
//Intent intent = getIntent();
//index = intent.getIntExtra("index", 0);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case (R.id.btn_message):
//if changes in the same page
index++;
String testing = String.valueOf(index);
test.setText(testing);
btn_message.setText(String.valueOf(messages[index]));
switch (index) {
//CHANGING POINT ZONE
case (8):
index = 10;
//BackgroundImage.setImageResource(R.mipmap.bg1);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
txt_round.setText(name);
break;
case (16):
index = 20;
BackgroundImage.setImageResource(R.mipmap.bg2);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
txt_round.setText(name);
break;
case (31):
index = 40;
//BackgroundImage.setImageResource(R.mipmap.bg3);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
txt_round.setText("");
break;
case (52):
index = 60;
BackgroundImage.setImageResource(R.mipmap.bg4);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
txt_round.setText("");
break;
case (66):
index = 70;
//BackgroundImage.setImageResource(R.mipmap.cg2);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
txt_round.setText(name);
break;
case (82):
index = 90;
//BackgroundImage.setImageResource(R.mipmap.bg5);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
txt_round.setText("");
break;
case (172):
index = 180;
txt_round.setText(name);
BackgroundImage.setImageResource(R.mipmap.bg6);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
break;
case (183):
index = 190;
txt_round.setText(name);
//BackgroundImage.setImageResource(R.mipmap.cg3);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
break;
//END A END A END A
case (114):
index = 120;
txt_round.setText("");
//BackgroundImage.setImageResource(R.mipmap.bg10);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
break;
case (126):
index = 130;
//BackgroundImage.setImageResource(R.mipmap.bg11);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
txt_round.setText(name);
break;
//END A END A END A
case (145):
//index = 90;
txt_round.setText("");
//BackgroundImage.setImageResource(R.mipmap.endA);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
break;
//END A END A END A
//END B END B END B
case (211):
index = 220;
txt_round.setText(name);
//BackgroundImage.setImageResource(R.mipmap.bg6);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
break;
case (224):
index = 230;
txt_round.setText(name);
//BackgroundImage.setImageResource(R.mipmap.bg4);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
break;
case (234):
index = 240;
txt_round.setText(name);
//BackgroundImage.setImageResource(R.mipmap.cg6);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
break;
//END B END B END B
case (251):
//index = 240;
txt_round.setText(name);
//BackgroundImage.setImageResource(R.mipmap.cg6);
BackgroundImage.setScaleType(ImageView.ScaleType.FIT_XY);
break;
//END B END B END B
//CHOICE AREA
case (105):
AlertDialog.Builder choice_box = new AlertDialog.Builder(MainActivity.this);
View choice_view = getLayoutInflater().inflate(R.layout.activity_choices, null);
Button choice1 = choice_view.findViewById(R.id.choice1);
Button choice2 = choice_view.findViewById(R.id.choice2);
choice_box.setView(choice_view);
AlertDialog dialog = choice_box.create();
dialog.setCanceledOnTouchOutside(false);
final AlertDialog finalDialog3 = dialog;
choice1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
index = 110;
btn_message.setText(String.valueOf(messages[index]));
txt_round.setText("");
finalDialog3.dismiss();
}
});
//if in screen choice, use this to change in different paths
final AlertDialog finalDialog2 = dialog;
choice2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
index = 150;
//need to set the index 20's value as instant refresting is not working
btn_message.setText(String.valueOf(messages[index]));
txt_round.setText("");
finalDialog2.dismiss();
}
});
dialog.show();
Window window = dialog.getWindow();
window.setLayout(ConstraintLayout.LayoutParams.MATCH_PARENT, ConstraintLayout.LayoutParams.WRAP_CONTENT);
break;
case (203):
choice_box = new AlertDialog.Builder(MainActivity.this);
choice_view = getLayoutInflater().inflate(R.layout.activity_choices, null);
choice1 = choice_view.findViewById(R.id.choice1);
choice2 = choice_view.findViewById(R.id.choice2);
dialog = choice_box.create();
final AlertDialog finalDialog = dialog;
choice1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
index = 210;
btn_message.setText(String.valueOf(messages[index]));
txt_round.setText("");
finalDialog.dismiss();
}
});
//if in screen choice, use this to change in different paths
final AlertDialog finalDialog1 = dialog;
choice2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
index = 260;
//need to set the index 20's value as instant refresting is not working
btn_message.setText(String.valueOf(messages[index]));
txt_round.setText("");
finalDialog1.dismiss();
}
});
dialog.show();
window = dialog.getWindow();
window.setLayout(ConstraintLayout.LayoutParams.MATCH_PARENT, ConstraintLayout.LayoutParams.WRAP_CONTENT);
break;
case (264):
choice_box = new AlertDialog.Builder(MainActivity.this);
choice_view = getLayoutInflater().inflate(R.layout.activity_choices, null);
choice1 = choice_view.findViewById(R.id.choice1);
choice2 = choice_view.findViewById(R.id.choice2);
dialog = choice_box.create();
final AlertDialog finalDialog4 = dialog;
choice1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
index = 210;
btn_message.setText(String.valueOf(messages[index]));
txt_round.setText("");
finalDialog4.dismiss();
}
});
//if in screen choice, use this to change in different paths
final AlertDialog finalDialog5 = dialog;
choice2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
index = 260;
//need to set the index 20's value as instant refresting is not working
btn_message.setText(String.valueOf(messages[index]));
txt_round.setText("");
finalDialog5.dismiss();
}
});
dialog.show();
window = dialog.getWindow();
window.setLayout(ConstraintLayout.LayoutParams.MATCH_PARENT, ConstraintLayout.LayoutParams.WRAP_CONTENT);
break;
//CHARCTER ZONE
case (23):
case (29):
case (41):
case (49):
case (51):
case (78):
case (91):
case (93):
case (103):
case (111):
case (124):
case (134):
case (158):
case (161):
case (166):
case (169): {//girl
txt_round.setText("B");
break;
}
case (63):
case (72):
case (74):
case (152):
case (155):
case (157):
case (160):
case (163):
case (188):
case (171): {//shing
character = 2;
txt_round.setText("A");
break;
}
case (10):
case (20):
case (25):
case (30):
case (70):
case (75):
case (76):
case (79):
case (94):
case (100):
case (104):
case (112):
case (123):
case (130):
case (132):
case (136):
case (139):
case (143):
case (153):
case (159):
case (164):
case (180):
case (191): {//playername
txt_round.setText(name);
break;
}
case (193):
Intent intent = new Intent(this, ImageActivity.class);
intent.putExtra("index", index);
startActivity(intent);
break;
default://noone
character = 0;
txt_round.setText("");
//MINIGAME AREA
//OTHER ZONE (PLAYER NAME SET DIALOG ZONE)
btn_message.setText(String.valueOf(messages[index]));
break;
case R.id.btn_skip:
break;
}
}
}
}
这是真正需要的主要.xml文件
<?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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<ImageView
android:id="@+id/img_Background"
android:layout_width="0dp"
android:layout_height="0dp"
android:scaleType="fitXY"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0"
app:srcCompat="@mipmap/bg_test" />
<ImageView
android:id="@+id/img_right"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="450dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@mipmap/normal" />
<ImageView
android:id="@+id/img_left"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginEnd="450dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@mipmap/normal6" />
<Button
android:id="@+id/btn_message"
android:layout_width="713dp"
android:layout_height="146dp"
android:background="@mipmap/bar_5"
android:gravity="top"
android:lines="5"
android:minLines="2"
android:paddingLeft="80px"
android:paddingTop="50px"
android:text="「......enq7f…….」"
android:textAlignment="viewStart"
android:textSize="26sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="@+id/txtx_Test"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:text="TextView"
android:textColor="@color/colorPrimaryDark"
android:textSize="36sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/img_Background"
/>
<TextView
android:id="@+id/txt_round"
android:layout_width="171dp"
android:layout_height="40dp"
android:layout_marginStart="10dp"
android:layout_marginEnd="590dp"
android:background="@mipmap/bar_6"
android:gravity="center"
android:paddingTop="15px"
android:text="\u003F \u003F \u003F"
android:textSize="24sp"
app:layout_constraintBottom_toTopOf="@+id/btn_message"
app:layout_constraintEnd_toEndOf="@+id/img_right"
app:layout_constraintHorizontal_bias="0.012"
app:layout_constraintStart_toStartOf="parent" />
<Button
android:id="@+id/btn_skip"
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_marginStart="600dp"
android:layout_marginEnd="12dp"
android:layout_marginBottom="3dp"
android:background="@mipmap/bar_3"
android:text="Skip"
app:layout_constraintBottom_toTopOf="@+id/btn_message"
app:layout_constraintEnd_toEndOf="@+id/img_right"
app:layout_constraintHorizontal_bias="0.012"
app:layout_constraintStart_toStartOf="parent" />
</android.support.constraint.ConstraintLayout>
预期：消息应在按钮上一一设置， 实际：但是什么也没发生
答案 0 :(得分：2)
原因是因为您缺少将监听器设置为按钮。
btn_message.setOnClickListener(this);
答案 1 :(得分：0)
正如@John Joe所提到的，如果您不需要实现侦听器，那么您会错过为按钮设置侦听器的功能，请在xml的按钮中添加android:onClick="onClick"
<Button
android:id="@+id/btn_message"
android:layout_width="713dp"
android:layout_height="146dp"
android:background="@mipmap/bar_5"
android:gravity="top"
android:lines="5"
android:onClick="onClick"
android:minLines="2"
android:paddingLeft="80px"
android:paddingTop="50px"
android:text="「......enq7f…….」"
android:textAlignment="viewStart"
android:textSize="26sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />