java - 点击时隐藏 ImageView

Question

感谢您的所有建议和想法，我终于通过您的建议实现了它，这是解决问题的简单逻辑工作。如果有人想要创建自定义生命条，我想分享它，但它不适合 100 HP，因为那样你必须编写 100 个 IF 语句，想法是创建简单的自定义健康栏并通过点击按钮来减少它。这个链接也对我有很大帮助。 HealthBar代码

private TextView Message,result;
private Button play;
private float maxHP = 10;
private float currentHP = maxHP;
//private float percentHP =  (float) (currentHP/maxHP);
private int user_shield;
private float healthBar;
private ImageView shieldusb1,shieldusb2,shieldusb3;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);   
setContentView(R.layout.activity_level_one);

Initialize();

}


private void Initialize(){ 
   user_shield = R.raw.shield_blue;
   shieldusb2 = (ImageView)  findViewById(R.id.shield_b2);
   shieldusb1 = (ImageView)  findViewById(R.id.shield_b1);
   shieldusb3 = (ImageView)  findViewById(R.id.shield_b3);
   result = (TextView) findViewById(R.id.result);
   play = (Button) findViewById(R.id.playButton);
   play.setOnClickListener(new OnClickListener(){
        public void onClick(View arg0){
            play();
}
   });

}

public void play(){
    {         
        healthBar=0;
        currentHP = (float) (currentHP - 0.5);       

        //currentHP -= 1;
    if(currentHP <= 0) //if the player died
    {
         currentHP = 0; //set his HP to zero, (just in case)
         Message.setText("You died! :P"); //add any extra death-code here
         //update the healthBar
         result.setText ("WIN POINTS"); 
    }
    updateHealthBar();
  }

    }
 private void updateHealthBar() {   
    // percentHP =  currentHP / maxHP;
     healthBar = currentHP;


     if(healthBar<9.6){
            shieldusb1.setVisibility(View.GONE); 
     }
     {               
     if (healthBar<=9){
            shieldusb2.setVisibility(View.GONE);
       }
     if (healthBar<=8.6){
        shieldusb3.setVisibility(View.GONE);
         }
     }

     }

Answer 1

我的猜测是，您需要删除 else if 并使其只是 if 因为如果您执行第一个语句 where <= 1，则 else if 将永远不会被执行.

private void updateHealthBar() {   
    percentHP = currentHP / maxHP; / calculating points 
    healthBar = percentHP;


    if(healthBar<=1){           // Hiding first Image View 
        shieldusb1.setVisibility(View.GONE);                
    }
    if (healthBar<=0.9){  
       shieldusb2.setVisibility(View.GONE); //  How to Hide this Image View after button click 
    }
}