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我高度關注從json讀取數據並在listview中顯示它的活動。我想通過檢查某些條件來靜態地將圖像添加到listview中。但它返回給我錯誤爲：從可繪製文件夾中讀取圖像時出現錯誤
07-03 14:50:48.398: E/BitmapFactory(1106): Unable to decode stream: java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
07-03 14:50:48.408: E/BitmapFactory(1106): Unable to decode stream: java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
07-03 14:50:48.438: E/BitmapFactory(1106): Unable to decode stream: java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
07-03 14:50:48.458: E/BitmapFactory(1106): Unable to decode stream: java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
07-03 14:50:48.468: E/BitmapFactory(1106): Unable to decode stream: java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
07-03 14:50:48.998: E/BitmapFactory(1106): Unable to decode stream: java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
07-03 14:50:49.008: E/BitmapFactory(1106): Unable to decode stream: java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
07-03 14:50:49.018: E/BitmapFactory(1106): Unable to decode stream: java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
MainActivity
protected void onPostExecute(List<List<HashMap<String, String>>> result) {
ArrayList<LatLng> points = null;
PolylineOptions lineOptions = null;
MarkerOptions markerOptions = new MarkerOptions();
String distance = "";
Spanned instruction;
String turns = "";
String duration = "";
String str = "";
int t = 0;
if (result.size() < 1) {
Toast.makeText(getBaseContext(), "No Points",
Toast.LENGTH_SHORT).show();
return;
}
// Traversing through all the routes
for (int i = 0; i < result.size(); i++) {
points = new ArrayList<LatLng>();
lineOptions = new PolylineOptions();
// Fetching i-th route
List<HashMap<String, String>> path = result.get(i);
// Fetching all the points in i-th route
for (int j = 0; j < path.size(); j++) {
HashMap<String, String> point = path.get(j);
instruction = Html.fromHtml((String) point
.get("html_instructions"));
str = instruction.toString();
// Log.i("str", str);
distance = (String) point.get("distance_text");
turns = (String) point.get("maneuver");
double lat = Double.parseDouble(point.get("lat"));
double lng = Double.parseDouble(point.get("lng"));
LatLng position = new LatLng(lat, lng);
points.add(position);
HashMap<String, String> map1 = new HashMap<String, String>();
map1.put("instruction", str);
if (turns == "turn-left") {
map1.put("img", Integer.toString(img[8]));
}
else if (turns == "turn-right") {
map1.put("img", Integer.toString(img[9]));
} else if (turns == "fork-right") {
map1.put("img", Integer.toString(img[1]));
} else if (turns == "turn-slight-right") {
map1.put("img", Integer.toString(img[11]));
} else if (turns == "turn-slight-left") {
map1.put("img", Integer.toString(img[10]));
} else if(turns == "fork-left"){
map1.put("img", Integer.toString(img[0]));
}
else if (turns == "uturn-right") {
map1.put("img", Integer.toString(img[7]));
} else if(turns == ""){
map1.put("img", Integer.toString(img[2]));
}
// else if(turns == "ramp-left"){
// map1.put("img", Integer.toString(img[1]));
// }
//map1.put("distance", distance);
// map1.put("turns", Integer.toString(t));
oslist.add(map1);
}
// Adding all the points in the route to LineOptions
lineOptions.addAll(points);
lineOptions.width(2);
lineOptions.color(Color.RED);
}
// Log.i("list", oslist.toString());
String[] from = { "img","instruction" };
// Ids of views in listview_layout
int[] to = { R.id.flag,R.id.txt};
SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), oslist, R.layout.activity_main, from, to);
list.setAdapter(adapter);
// tvDistanceDuration.setText("Distance:"+distance +
// ", Duration:"+duration);
// Drawing polyline in the Google Map for the i-th route
map.addPolyline(lineOptions);