我一直在开发一款应用程序，并且在某些设备中存在性能问题，例如配置相同但品牌差异。 我正在使用两个设备lenovo和三星。与相同的处理器相同的RAM相同的ROM。 这个应用程序在它挂起的三星设备上表现不同，在联想它的工作正常。 我的代码有什么问题，或者其他人遇到同样的问题并找到了解决方法吗？
//截击请求
private void request() {
StringRequest stringRequest = new StringRequest(Request.Method.POST, url + "abc.php",
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
systemm.out("Daily Dose"+response);
try {
JSONArray jArray = new JSONArray(response);
int count = jArray.length();
for (int i = 0; i <= count; i++) {
JSONObject j = jArray.getJSONObject(i);
Item itemm=new Item();
itemm.setUrlPic(j.getString("image"));
itemm.setPicCount(j.getString("imcount"));
itemm.setName(CapitalLetter.AllFirstLetterWithBlanckSpace(Basee64.Decode2(j.getString("fname"))+" "
+Basee64.Decode2(j.getString("lname"))));
itemm.setAbout(CapitalLetter.AllFirstLetterWithBlanckSpace(Basee64.Decode2(j.getString("fullabout"))));
itemm.setAgeHeight(j.getString("age")+","
+Basee64.Decode2(j.getString("height")));
itemm.setMaritalStatus(Basee64.Decode2(j.getString("marital")));
itemm.setReligion(Basee64.Decode2(j.getString("religion")));
itemm.setEat(Basee64.Decode2(j.getString("food")));
itemm.setDrink(Basee64.Decode2(j.getString("drink")));
itemm.setSmoke(Basee64.Decode2(j.getString("smoke")));
itemm.setLocation(CapitalLetter.FirstLetter(Basee64.Decode2(j.getString("city")))+","
+CapitalLetter.FirstLetter(Basee64.Decode2(j.getString("state")))+","
+CapitalLetter.FirstLetter(Basee64.Decode2(j.getString("country"))));
itemm.setQualification(Basee64.Decode2(j.getString("education")));
itemm.setAnnualIncome(Basee64.Decode2(j.getString("income")));
items.add(itemm);
show(page);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
systemm.out("Daily Dose"+error.getMessage());
}
}){
@Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
params.put("uid", "1");
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(activityy);
requestQueue.add(stringRequest);
}
private void show(int i) {
Item it=items.get(i);
nameTv.setText(it.getName());
aboutTv.setText(it.getAbout());
age_height_Tv.setText(it.getAgeHeight());
maritalStatusTv.setText(it.getMaritalStatus());
religionTv.setText(it.getReligion());
eatTv.setText(it.getEat());
drinkTv.setText(it.getDrink());
smokeTv.setText(it.getSmoke());
locationTv.setText(it.getLocation());
QualificationTv.setText(it.getQualification());
AnnualIncomeTv.setText(it.getAnnualIncome());
picCountTv.setText(it.getPicCount());
//String urll="http://ste.india.com/sites/default/files/2015/12/18/442851-max.jpg";
//String urll="http://www.fashioncentral.pk/images/models/111/Sanam_Jung_Pic.jpg";
imageLoader = CustomVolleyRequest.getInstance(activityy.getApplicationContext()).getImageLoader();
imageLoader.get(Config.urlImage+it.getUrlPic(), ImageLoader.getImageListener(profilePicIv, R.drawable.blur, android.R.drawable.ic_dialog_alert));
profilePicIv.setImageUrl(Config.urlImage+it.getUrlPic(), imageLoader);
}
//自定义排球
public class CustomVolleyRequest {
private static CustomVolleyRequest customVolleyRequest;
private static Context context;
private RequestQueue requestQueue;
private ImageLoader imageLoader;
private CustomVolleyRequest(Context context) {
this.context = context;
this.requestQueue = getRequestQueue();
imageLoader = new ImageLoader(requestQueue,
new ImageLoader.ImageCache() {
private final LruCache<String, Bitmap>
cache = new LruCache<String, Bitmap>(20);
@Override
public Bitmap getBitmap(String url) {
return cache.get(url);
}
@Override
public void putBitmap(String url, Bitmap bitmap) {
cache.put(url, bitmap);
}
});
}
public static synchronized CustomVolleyRequest getInstance(Context context) {
if (customVolleyRequest == null) {
customVolleyRequest = new CustomVolleyRequest(context);
}
return customVolleyRequest;
}
public RequestQueue getRequestQueue() {
if (requestQueue == null) {
Cache cache = new DiskBasedCache(context.getCacheDir(), 10 * 1024 * 1024);
Network network = new BasicNetwork(new HurlStack());
requestQueue = new RequestQueue(cache, network);
requestQueue.start();
}
return requestQueue;
}
public ImageLoader getImageLoader() {
return imageLoader;
}
}
//大写字母
public class CapitalLetter {
public static String AllFirstLetterWithBlanckSpace(String str) {
String[] strArray = str.split(" ");
StringBuilder builder = new StringBuilder();
for (String s : strArray) {
String cap = s.substring(0, 1).toUpperCase() + s.substring(1);
builder.append(cap + " ");
}
return builder.toString();
}
public static String FirstLetter(String str) {
String[] strArray = str.split(" ");
StringBuilder builder = new StringBuilder();
for (String s : strArray) {
String cap = s.substring(0, 1).toUpperCase() + s.substring(1);
builder.append(cap + "");
}
return builder.toString();
}
public static String Peragrap(String str) {
String[] strArray = str.split(".");
StringBuilder builder = new StringBuilder();
for (String s : strArray) {
String cap = s.substring(0, 1).toUpperCase() + s.substring(1);
builder.append(cap + ".");
}
return builder.toString();
}
}
// base64编码解码
public class Basee64 {
public static String Decode(String s) {
String data=null;
if(s!=null) {
try {
data = new String(Base64.decode(s, Base64.DEFAULT), "UTF-8").trim();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
return data;
}
public static String Encode(String s) {
String data=null;
if(s!=null) {
try {
data = Base64.encodeToString(s.getBytes("UTF-8"), Base64.DEFAULT).trim();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
return data;
}
public static String Decode2(String s) {
String data=null;
if(s!=null) {
try {
data = new String(Base64.decode(new String(Base64.decode(s, Base64.DEFAULT), "UTF-8"), Base64.DEFAULT), "UTF-8").trim();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
return data;
}
public static String Encode2(String s) {
String data=null;
if(s!=null) {
try {
data = Base64.encodeToString(Base64.encodeToString(s.getBytes("UTF-8"), Base64.DEFAULT).trim().getBytes("UTF-8"), Base64.DEFAULT).trim();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
return data;
}
}
答案 0 :(得分：0)
尝试使用
Runtime.getRuntime().maxMemory();
你的代码被卡住了 因为有些手机没有自动清除RAM，但你的应用程序需要更多内存，这样你可以为你的操作分配更多的内存。清除
下面的内存使用情况 System.runFinalization();
Runtime.getRuntime().gc();
System.gc();
//清除内存
答案 1 :(得分：0)
以上答案很棒。但是编程方面，你必须做更多像线程，服务处理程序的事情。如果您在主线程中编码所有内容，它将一直挂起，直到完成该过程。但是把非ui的东西放到后台线程或异步任务中。
答案 2 :(得分：0)
如果应用程序冻结的时间足以获得应用程序无响应（ANR）弹出窗口，那么您可以拉出traces.txt文件以查看确切的内容：
adb pull /data/anr/traces.txt
该文件将包含应用程序的线程转储。看看主线程正在做什么。这将是一个暗示应该放在后台线程上的内容。
答案 3 :(得分：0)
回复有多大？膨胀json并不便宜，如果你的json非常大，这意味着应用程序可能需要一些时间来创建适当的对象来代表你的json。如果这是尝试使用JsonReader充气json的原因。