Android隨機圖像視圖鏈接到匹配按鈕

Question

隨機選擇imageview在同一時間一個按鈕有其他三個是錯誤的。 imageView會隨機顯示照片，但不會調整按鈕。我該怎麼辦？我做imageView隨機選擇，但不調整其他。 see this image

RES /佈局/ activity_letter_test_first

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 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/activity_letter_test_first" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    android:orientation="vertical" 
    tools:context="com.example.nayemuzzaman.learning.LetterTestFirst"> 


    <TextView 
     android:text="Try to find A " 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:id="@+id/textView2" 
     android:textAppearance="@style/TextAppearance.AppCompat.Display1" /> 

    <ImageView 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:src="@drawable/a" 
     android:id="@+id/imgViewRandom" 
     android:onClick="imageLetterRandom" /> 

    <LinearLayout 
     android:orientation="horizontal" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content"> 

     <Button 
      android:text="Button" 
      android:layout_width="182dp" 
      android:layout_height="wrap_content" 
      android:id="@+id/button" /> 

     <Button 
      android:text="Button" 
      android:layout_width="171dp" 
      android:layout_height="wrap_content" 
      android:id="@+id/button4" /> 
    </LinearLayout> 

    <LinearLayout 
     android:orientation="horizontal" 
     android:layout_width="match_parent" 
     android:layout_height="59dp"> 

     <Button 
      android:text="Button" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:id="@+id/button5" 
      android:layout_weight="1.14" /> 

     <Button 
      android:text="Button" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:id="@+id/button6" 
      android:layout_weight="1" /> 
    </LinearLayout> 

</LinearLayout> 

的Java/com.example.nayemuzzaman.learning/LetterTestFirst

package com.example.nayemuzzaman.learning; 

import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ImageView; 
import java.util.Random; 

public class LetterTestFirst extends AppCompatActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_letter_test_first); 

     final int[] phtLetter={R.drawable.a, R.drawable.b, R.drawable.c}; //total picture add 

     final ImageView imgViewRnd=(ImageView) findViewById(R.id.imgViewRandom); //imageView address 

     final Random ranLtr=new Random(); 

     int imgLetter=ranLtr.nextInt(phtLetter.length); 
     imgViewRnd.setImageResource(phtLetter[imgLetter]); 

     imgViewRnd.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       int tlLetter = ranLtr.nextInt(phtLetter.length); //total length letter photos & random selected photos. 
       imgViewRnd.setImageResource(phtLetter[tlLetter]); 
      } 
     }); 

    } 

} 

Answer 1

儘量給平衡砝碼喜歡;

<LinearLayout 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/activity_letter_test_first" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:orientation="vertical" 
tools:context="com.example.nayemuzzaman.learning.LetterTestFirst"> 


<TextView 
    android:text="Try to find A " 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:id="@+id/textView2" 
    /> 

<ImageView 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:id="@+id/imgViewRandom" 
    /> 

<LinearLayout 
    android:orientation="horizontal" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"> 

    <Button 
     android:text="Button" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_weight="1" 
     android:id="@+id/button" /> 

    <Button 
     android:text="Button" 
     android:layout_width="171dp" 
     android:layout_height="wrap_content" 
     android:layout_weight="1" 
     android:id="@+id/button4" /> 
</LinearLayout> 
<LinearLayout 
    android:orientation="horizontal" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"> 


    <Button 
     android:text="Button" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/button5" 
     android:layout_weight="1" /> 

    <Button 
     android:text="Button" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/button6" 
     android:layout_weight="1" /> 
</LinearLayout> 

順便說一句，我不建議使用靜態DP等; 「170dp」等。