我有一个由 12 个整数值组成的数组,我想一个接一个地显示它
最初在应用程序运行时,我显示 6 个值。
在按钮上单击我想一一显示其他6个值
上一个按钮- > value1 value2 value3 value4 value5 value6 -> 下一个按钮
所以在下一个按钮点击它应该是这样的。
接下来的 6 个值应该像这样显示
上一个按钮-> value2 value3 value4 value5 value6 value7 ->下一个按钮
这应该持续到 12 个值
并且在prevbutton的情况下应该发生反转。
总是感谢您的帮助,谢谢
我正在显示像这样的前 6 个值
public void autoTune() {
Log.i("autotune", " called");
if (frequency[0] == 0.0)
station1.setText("");
else
station1.setText("" + frequency[0]);
if (frequency[1] == 0.0)
station2.setText("");
else
station2.setText("" + frequency[1]);
if (frequency[2] == 0.0)
station3.setText("");
else
station3.setText("" + frequency[2]);
if (frequency[3] == 0.0)
station4.setText("");
else
station4.setText("" + frequency[3]);
if (frequency[4] == 0.0)
station5.setText("");
else
station5.setText("" + frequency[4]);
if (frequency[5] == 0.0)
station6.setText("");
else
station6.setText("" + frequency[5]);
}
@Override
protected Boolean doInBackground(Context... params) {
// TODO Auto-generated method stub
Log.i("in autotune", " before freq length");
int[] freq = { 911, 943, 947, 932, 901, 964, 843, 835, 946,904,908,873,877 };
freqCounter = 0;
Log.i("in autotune", "after freq length : " + freq.length);
frequency = new double[freq.length];
Log.i("in autotune", "after frequency length : " + frequency.length);
for (int k = 0; k < freq.length; k++) {
Log.i("In Radio.java", "Freq : " + freq[k]);
frequency[k] = freq[k];
frequency[k] = frequency[k] / 10;
if (frequency[k] == 0.0)
break;
freqCounter++;
Log.i("In Radio.java", "Frequency : " + frequency[k]);
}
我已经尝试过使用此代码,但这根本不起作用
public void forwardtune(){
Button[] buttons = new Button[5];
buttons[0] = (Button)findViewById(R.id.radiostation1);
buttons[1] = (Button)findViewById(R.id.radiostation2);
buttons[2] = (Button)findViewById(R.id.radiostation3);
buttons[3] = (Button)findViewById(R.id.radiostation4);
buttons[4] = (Button)findViewById(R.id.radiostation5);
buttons[5] = (Button)findViewById(R.id.radiostation6);
if(currentlyDisplayingFromPosition + 6 >= arraySize)
return;
for(int i=0; i<arraySize; i++){
buttons[i].setText("");
}
for(int i=currentlyDisplayingFromPosition; i<=currentlyDisplayingFromPosition+6; i++){
if (frequency[i] == 0.0)
buttons[i].setText("");
else
buttons[i].setText("" + frequency[0]);
}
}
我在下一个按钮单击中调用此函数 forwardtune() 。仍然没有运气!有什么建议么?