[英]How can I initialize a variable in Android class?
初始化LOC或LAT变量时出现问题,应用崩溃,问题出在哪里?
public final class MyLocationListener implements LocationListener {
Context c;
Camera mycam =Camera.open(1);
Float[] LOC;
Float[] LAT;
public MyLocationListener(Context context) {
c= context;
// read all file & spiting them
String DataPoints = read_db("gpspoints");
DataPoints.trim();
String []ar=DataPoints.split("&");
String[] twovar=ar[2].split("/");
this.LOC[1]=(float) 1;
this.LAT[1]=(float) 1;
//end of read and Split
}
放
this.LAT = new Float[2];
this.LOC = new Float[2];
之前
this.LOC[1]= (float) 1;
this.LAT[1]= (float) 1;
问题是您想在数组中设置一个值,但尚未初始化数组。
尝试这个:
this.LOC[0]=(float) 1;
this.LAT[0]=(float) 1;
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