壞事使用抽射處理大反應時發生的事情:的Android,排球請求,響應阻塞主線程
String url = AppHelper.DOMAIN + "/service/pages/profile_update.json";
this.infoTextView.setText(getString(R.string.profile_info_updating));
final StringRequest stringRequest = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject json = new JSONObject(response);
if (json.getBoolean("success")) {
// manage JSON object here
} else {
Toast.makeText(ProfileActivity.this,
getString(R.string.connection_problem_server),
Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
ProfileActivity.this.infoTextView.setText(
getString(R.string.profile_info_updating_error));
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
ProfileActivity.this.infoTextView.setText(
getString(R.string.profile_info_updating_error));
if (error.networkResponse != null && error.networkResponse.statusCode == 401) {
Toast.makeText(ProfileActivity.this,
getString(R.string.connection_problem_permission),
Toast.LENGTH_LONG).show();
}
new android.os.Handler().postDelayed(new Runnable() {
@Override
public void run() {
if (ProfileActivity.this.swipeRefreshLayout != null) {
ProfileActivity.this.swipeRefreshLayout.setRefreshing(false);
}
}
}, 1000);
error.printStackTrace();
}
}) {
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<>();
params.put("auth_token", ProfileActivity.this.defaultUser.getAuthenticationToken());
return params;
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.putAll(super.getHeaders());
params.put("Accept-Encoding", "gzip,deflate");
return params;
}
@Override
protected Response<String> parseNetworkResponse(NetworkResponse response) {
StringBuilder output = new StringBuilder();
try {
GZIPInputStream gStream = new GZIPInputStream(new ByteArrayInputStream(response.data));
InputStreamReader reader = new InputStreamReader(gStream);
BufferedReader in = new BufferedReader(reader, 16384);
String read;
while ((read = in.readLine()) != null) {
output.append(read).append("\n");
}
reader.close();
in.close();
gStream.close();
} catch (IOException error) {
error.printStackTrace();
return Response.error(new ParseError());
}
return Response.success(output.toString(), HttpHeaderParser.parseCacheHeaders(response));
}
};
stringRequest.setRetryPolicy(new RetryPolicy() {
@Override
public int getCurrentTimeout() {
// 40 seconds
return 40000;
}
@Override
public int getCurrentRetryCount() {
return DefaultRetryPolicy.DEFAULT_MAX_RETRIES;
}
@Override
public void retry(VolleyError error) throws VolleyError {
throw error;
}
});
Volley.newRequestQueue(this).add(stringRequest);
這個代碼塊爲主線,凍結的申請。
此外,我設置了一些標頭值以允許gzip響應和代碼來處理數據。但這並不是造成不良行爲的因素。僅當onResponse(String response)
開始時,應用程序纔會凍結。
我該怎麼做才能避免這種情況?
,可能還存在的事實,你正在做的,而不是在JSON解析UI線程上,做'parseNetworkResponse' – EpicPandaForce
代碼似乎是罰款..你可以暴露此網絡請求周圍的代碼的其他部分? – Dexto