我正在构建一个基于位置的应用程序,它使用相机的图像而不是2D地图作为其用户界面。
在该视图中,我想绘制一个可绘制的图像。当点之间的距离改变时,图像可绘制也会改变。
一切正常,但只在第一个。 当应该更改图像时,应用程序挂起。 但相机拍摄的图像仍然是正常的方式。
这是onCreate
的代码,用于初始化drawable:
arrow = (ImageView)findViewById(R.id.arah);
arrow.setVisibility(0);
res = getResources();
lurus = res.getDrawable(R.drawable.arahlurus);
kanan = res.getDrawable(R.drawable.arahkanan);
kiri = res.getDrawable(R.drawable.arahkiri);
putar = res.getDrawable(R.drawable.arahputar);
这是方法onLocationChanged()的代码:
arrow.setVisibility(0);
Location pointLocation = TEMP_LOCATION.get(check);
float distance = location.distanceTo(pointLocation);
int dist = (int)Math.round(distance);
//stepNext.setText("" + distance + " Meter");
//String chek = TEMP_POINT.get(check).toString();;
if (dist / 4 == 0){
stepNext.setText("" + dist + "meter");
Toast.makeText(ARrazerNav.this, "Jarak Dengan Checkpoint: " +dist, Toast.LENGTH_SHORT).show();
}
else if (dist < 15){
arrow.setVisibility(0);
//speakWords(TEMP_NAME.get(check).toString());
check++;
}
else if (dist >= 10 && dist <= 27){
arrow.setVisibility(1);
if(checkOrientation == 1){
if (TEMP_POINT.get(check) == 1){
arrow.setImageDrawable(lurus);
}
else if (TEMP_POINT.get(check) == 2){
arrow.setImageDrawable(kanan);
}
else if(TEMP_POINT.get(check) == 3){
arrow.setImageDrawable(putar);
}
else{
arrow.setImageDrawable(kiri);
}
}else{
if (TEMP_POINT.get(check) == 1){
arrow.setImageDrawable(kiri);
}
else if (TEMP_POINT.get(check) == 2){
arrow.setImageDrawable(lurus);
}
else if(TEMP_POINT.get(check) == 3){
arrow.setImageDrawable(kanan);
}
else{
arrow.setImageDrawable(putar);
}
}
}