2017-08-30 126 views
-3

我在android開發中的新功能。 我想通過Android中的java編碼更改我的按鈕背景。更改按鈕背景顏色使用if-else在android中

enter image description here

我想,當我點擊按鈕,它變成黃色和白色(包括男女按鈕),點擊後單擊是。

+0

添加烏爾代碼你到目前爲止嘗試 – Anil

+1

https://stackoverflow.com/questions/14023886/android-button-selector這可能會幫助你。 –

+1

可能重複的[android程序設置按鈕後臺](https://stackoverflow.com/questions/13842447/android-set-button-background-programmatically) – anonymous

回答

0

首先您需要綁定您的按鈕在活動這樣

btnMale=(Button) findViewById(R.id.btnMale); 
btnFemale=(Button) findViewById(R.id.btnFemale); 

比我們的按鈕setOnClickListener()這樣

btnMale.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      //btnMale.setBackgroundResource(R.drawable.background);// change background your button like this 

      btnMale.setBackgroundColor(ContextCompat.getColor(MainActivity.this,R.color.colorPrimary));// use this to set color as background 

      btnFemale.setBackgroundResource(android.R.drawable.btn_default;);// use this to set color as background 
     } 
    }); 



btnFemale.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 


     btnFemale.setBackgroundColor(ContextCompat.getColor(MainActivity.this,R.color.colorPrimary));// use this to set color as background 

     btnMale.setBackgroundResource(android.R.drawable.btn_default;);// use this to set color as background 
    } 
}); 
0
Button11.setBackgroundColor(getResources().getColor(R.color.red)); 

//或者,如果你不是:

Button11.setBackgroundColor(Button11.getContext().getResources().getColor(R.color.red)); 

或者,alterna tively:

Button11.setBackgroundColor(Color.RED); //從android.graphics.Color 或者,更加有利於技能:

Button11.setBackgroundColor(0xFFFF0000); // 0xAARRGGBB

0

你可以做這樣的事情:

@Override 
public void onCreate(Bundle savedInstanceState) { 
    Button buttonMale = (Button) findViewById(R.id.btn_male); 
    Button buttonFemale = (Button) findViewById(R.id.btn_female); 

    buttonMale.setOnClickListener(getGenderOnClickListener(buttonFemale)); 
    buttonFemale.setOnClickListener(getGenderOnClickListener(buttonMale)); 
} 

private Consumer<View> getGenderOnClickListener(View other) { 
    return view -> { 
     view.setBackgroundColor(Color.YELLOW); 
     other.setBackgroundColor(Color.WHITE);   
    } 
}