在Android中,我可以为不同的按钮使用相同的OnClickListener吗?如果可以,我如何获取生成点击的按钮?当前我有4个按钮,每个按钮都有自己的OnClickListener。每个OnClickListener都在执行完全相同的操作,除了获取被点击的按钮的文本。我想创建一个单一的OnClickListener,但是我无法确定哪个按钮被点击。谢谢。
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
mTts = new TextToSpeech(this, new TextToSpeech.OnInitListener() {
@Override
public void onInit(int arg0) {
// TODO Auto-generated method stub
}
});
setContentView(R.layout.home);
Button button1 = (Button)findViewById(R.id.button1);
Button button2 = (Button)findViewById(R.id.button2);
Button button3 = (Button)findViewById(R.id.button3);
Button button4 = (Button)findViewById(R.id.button4);
//Load First Word
button1.setOnClickListener(button1ClickListener);
button2.setOnClickListener(button2ClickListener);
button3.setOnClickListener(button3ClickListener);
button4.setOnClickListener(button4ClickListener);
}
用于监听器的代码,在粗体部分有所不同
private OnClickListener button1ClickListener = new View.OnClickListener() {
@Override
public void onClick(View arg0) {
**Button button = (Button)findViewById(R.id.button1);**
handleButtonClick(button);
}
};
private OnClickListener button2ClickListener = new View.OnClickListener() {
@Override
public void onClick(View arg0) {
**Button button = (Button)findViewById(R.id.button2);**
handleButtonClick(button);
}
};
private OnClickListener button3ClickListener = new View.OnClickListener() {
@Override
public void onClick(View arg0) {
**Button button = (Button)findViewById(R.id.button3);**
handleButtonClick(button);
}
};
private OnClickListener button4ClickListener = new View.OnClickListener() {
@Override
public void onClick(View arg0) {
**Button button = (Button)findViewById(R.id.button4);**
handleButtonClick(button);
}
};
处理按钮点击的代码
private void handleButtonClick(Button button) {
if(button.getText().equals(currentWord)){
currentScore += availableScore;
TextView score = (TextView)findViewById(R.id.textViewScore);
score.setText(String.valueOf(score));
currentIndex++;
availableScore = 4;
InitializeGame();
}
else{
availableScore--;
button.setEnabled(false);
}
}
在Karthik的建议下,我修改了代码如下:
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
mTts = new TextToSpeech(this, new TextToSpeech.OnInitListener() {
@Override
public void onInit(int arg0) {
// TODO Auto-generated method stub
}
});
setContentView(R.layout.home);
Button button1 = (Button)findViewById(R.id.button1);
Button button2 = (Button)findViewById(R.id.button2);
Button button3 = (Button)findViewById(R.id.button3);
Button button4 = (Button)findViewById(R.id.button4);
//Load First Word
button1.setOnClickListener(buttonClickListener);
button2.setOnClickListener(buttonClickListener);
button3.setOnClickListener(buttonClickListener);
button4.setOnClickListener(buttonClickListener);
}
点击监听器代码
private OnClickListener buttonClickListener = new View.OnClickListener() {
@Override
public void onClick(View arg0) {
handleButtonClick((Button)arg0);
}
};