我试图在登录期间检索用户的云联系人并将其保存在本地SQLite中，一切都很好，直到我必须将信息写入数据库，但使用带有API的电话18 （4.3）似乎专用阵列的某些值丢失了，而另一款带有API 22（5.1.1）的手机也不会发生这种情况。我试图弄清楚这种行为的原因，但经过一些测试我不知道还有什么做。但是，我注意到一个奇怪的事情，当我使用API 18启动应用程序时，我在Android Studio日志中收到了一些奇怪的警告，我做了一些研究，但我不知道它是否相关
活动中的代码：
DatabaseNumbersHandler dbn = new DatabaseNumbersHandler(getApplicationContext());
Integer jsonLen = json.length();
String[][] id = new String[jsonLen][4];
String[][] number = new String[jsonLen][4];
String[][] title = new String[jsonLen][4];
String[][] description = new String[jsonLen][4];
String[][] time_creation = new String[jsonLen][4];
Integer stop = 0;
Integer iter_position = 0;
for (int i = 0; i < jsonLen; i++) {
Log.v("ITER POS", String.valueOf(iter_position));
JSONObject object = json.optJSONObject(i);
Iterator<String> iterator = object.keys();
while (iterator.hasNext()) {
try {
String currentKey = iterator.next();
String currentValue = object.getString(currentKey);
// If the key name is not numerical go on
if (!currentKey.matches("[-+]?\\d*\\.?\\d+")) {
Log.v("KEY_CLEAN", currentKey);
// If an "error" key exists show the alert and stop the db writing
if (currentKey.matches(KEY_ERROR)) {
if (Integer.parseInt(currentValue) == 1){
// If no number exists
final String no_contacts = getResources().getString(R.string.no_contacts_imported);
Toast.makeText(getApplicationContext(),
no_contacts, Toast.LENGTH_LONG).show();
stop = 1;
break;
} else if (Integer.parseInt(currentValue) == 2) {
// If the numbers are not imported due to an error
final String contacts_error = getResources().getString(R.string.error_contacts_not_imported);
Toast.makeText(getApplicationContext(),
contacts_error, Toast.LENGTH_LONG).show();
stop = 1;
break;
} else {
// Undefined error
final String undefined_error = getResources().getString(R.string.undefined_error);
Toast.makeText(getApplicationContext(),
undefined_error, Toast.LENGTH_LONG).show();
stop = 1;
break;
}
} else {
switch(currentKey){
case "id":
id[i][iter_position] = currentValue;
Log.v("ID", id[i][iter_position]);
break;
case "number":
number[i][iter_position] = currentValue;
Log.v("NUMBER", number[i][iter_position]);
break;
case "title":
title[i][iter_position] = currentValue;
Log.v("TITLE", title[i][iter_position]);
break;
case "description":
description[i][iter_position] = currentValue;
Log.v("DESC", description[i][iter_position]);
break;
case "time_creation":
time_creation[i][iter_position] = currentValue;
Log.v("TIME", time_creation[i][iter_position]);
iter_position++;
break;
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
if(stop.equals(0)) {
for (int i = 0; i < jsonLen; i++) {
Log.v("WRITE ID", String.valueOf(id[i][i]));
Log.v("WRITE NUMBER", String.valueOf(number[i][i]));
Log.v("WRITE TITLE", String.valueOf(title[i][i]));
Log.v("WRITE DESC", String.valueOf(description[i][i]));
Log.v("WRITE TIME", String.valueOf(time_creation[i][i]));
dbn.addNumber(id[i][i], user_id_get, number[i][i], title[i][i], description[i][i], time_creation[i][i]);
}
}
使用API 18生成的日志（Android 4.3）
注意：第一行是从云返回的json数组
02-29 14:55:57.049 2847-7742/com.myapp E/JSON: [{"id":2,"0":2,"number":3384729034,"1":3384729034,"title":"Mark","2":"Mark","description":"friend","3":"friend","time_creation":1449830672,"4":1449830672},{"id":3,"0":3,"number":3497812429,"1":3497812429,"title":"Erik","2":"Erik","description":"brother","3":"brother","time_creation":1455030339,"4":1455030339}]
02-29 14:55:57.064 2847-2847/com.myapp V/ITER POS: 0
02-29 14:55:57.069 2847-2847/com.myapp V/KEY_CLEAN: id
02-29 14:55:57.069 2847-2847/com.myapp V/ID: 2
02-29 14:55:57.074 2847-2847/com.myapp V/KEY_CLEAN: title
02-29 14:55:57.074 2847-2847/com.myapp V/TITLE: Mark
02-29 14:55:57.074 2847-2847/com.myapp V/KEY_CLEAN: time_creation
02-29 14:55:57.074 2847-2847/com.myapp V/TIME: 1449830672
02-29 14:55:57.079 2847-2847/com.myapp V/KEY_CLEAN: number
02-29 14:55:57.079 2847-2847/com.myapp V/NUMBER: 3384729034
02-29 14:55:57.079 2847-2847/com.myapp V/KEY_CLEAN: description
02-29 14:55:57.079 2847-2847/com.myapp V/DESC: friend
02-29 14:55:57.079 2847-2847/com.myapp V/ITER POS: 1
02-29 14:55:57.084 2847-2847/com.myapp V/KEY_CLEAN: id
02-29 14:55:57.084 2847-2847/com.myapp V/ID: 3
02-29 14:55:57.084 2847-2847/com.myapp V/KEY_CLEAN: title
02-29 14:55:57.084 2847-2847/com.myapp V/TITLE: Erik
02-29 14:55:57.089 2847-2847/com.myapp V/KEY_CLEAN: time_creation
02-29 14:55:57.089 2847-2847/com.myapp V/TIME: 1455030339
02-29 14:55:57.089 2847-2847/com.myapp V/KEY_CLEAN: number
02-29 14:55:57.089 2847-2847/com.myapp V/NUMBER: 3497812429
02-29 14:55:57.089 2847-2847/com.myapp V/KEY_CLEAN: description
02-29 14:55:57.094 2847-2847/com.myapp V/DESC: brother
02-29 14:55:57.094 2847-2847/com.myapp V/WRITE ID: 2
02-29 14:55:57.094 2847-2847/com.myapp V/WRITE NUMBER: null
02-29 14:55:57.094 2847-2847/com.myapp V/WRITE TITLE: Mark
02-29 14:55:57.094 2847-2847/com.myapp V/WRITE DESC: null
02-29 14:55:57.094 2847-2847/com.myapp V/WRITE TIME: 1449830672
02-29 14:55:57.104 2847-2847/com.myapp V/WRITE ID: 3
02-29 14:55:57.104 2847-2847/com.myapp V/WRITE NUMBER: null
02-29 14:55:57.104 2847-2847/com.myapp V/WRITE TITLE: Erik
02-29 14:55:57.104 2847-2847/com.myapp V/WRITE DESC: null
02-29 14:55:57.104 2847-2847/com.myapp V/WRITE TIME: 1455030339
使用API 22生成的日志（Android 5.1）
注意：第一行是从云返回的json数组
02-29 15:05:10.081 23832-24626/com.myapp E/JSON: [{"id":2,"0":2,"number":3384729034,"1":3384729034,"title":"Mark","2":"Mark","description":"friend","3":"friend","time_creation":1449830672,"4":1449830672},{"id":3,"0":3,"number":3497812429,"1":3497812429,"title":"Erik","2":"Erik","description":"brother","3":"brother","time_creation":1455030339,"4":1455030339}]
02-29 15:05:10.081 23832-23832/com.myapp V/ITER POS: 0
02-29 15:05:10.081 23832-23832/com.myapp V/KEY_CLEAN: id
02-29 15:05:10.081 23832-23832/com.myapp V/ID: 2
02-29 15:05:10.081 23832-23832/com.myapp V/KEY_CLEAN: number
02-29 15:05:10.081 23832-23832/com.myapp V/NUMBER: 3384729034
02-29 15:05:10.081 23832-23832/com.myapp V/KEY_CLEAN: title
02-29 15:05:10.081 23832-23832/com.myapp V/TITLE: Mark
02-29 15:05:10.091 23832-23832/com.myapp V/KEY_CLEAN: description
02-29 15:05:10.091 23832-23832/com.myapp V/DESC: friend
02-29 15:05:10.091 23832-23832/com.myapp V/KEY_CLEAN: time_creation
02-29 15:05:10.091 23832-23832/com.myapp V/TIME: 1449830672
02-29 15:05:10.091 23832-23832/com.myapp V/ITER POS: 1
02-29 15:05:10.091 23832-23832/com.myapp V/KEY_CLEAN: id
02-29 15:05:10.091 23832-23832/com.myapp V/ID: 3
02-29 15:05:10.091 23832-23832/com.myapp V/KEY_CLEAN: number
02-29 15:05:10.091 23832-23832/com.myapp V/NUMBER: 3497812429
02-29 15:05:10.091 23832-23832/com.myapp V/KEY_CLEAN: title
02-29 15:05:10.091 23832-23832/com.myapp V/TITLE: Erik
02-29 15:05:10.101 23832-23832/com.myapp V/KEY_CLEAN: description
02-29 15:05:10.101 23832-23832/com.myapp V/DESC: brother
02-29 15:05:10.101 23832-23832/com.myapp V/KEY_CLEAN: time_creation
02-29 15:05:10.101 23832-23832/com.myapp V/TIME: 1455030339
02-29 15:05:10.101 23832-23832/com.myapp V/WRITE ID: 2
02-29 15:05:10.101 23832-23832/com.myapp V/WRITE NUMBER: 3384729034
02-29 15:05:10.101 23832-23832/com.myapp V/WRITE TITLE: Mark
02-29 15:05:10.101 23832-23832/com.myapp V/WRITE DESC: friend
02-29 15:05:10.101 23832-23832/com.myapp V/WRITE TIME: 1449830672
02-29 15:05:10.111 23832-23832/com.myapp V/WRITE ID: 3
02-29 15:05:10.111 23832-23832/com.myapp V/WRITE NUMBER: 3497812429
02-29 15:05:10.111 23832-23832/com.myapp V/WRITE TITLE: Erik
02-29 15:05:10.111 23832-23832/com.myapp V/WRITE DESC: brother
02-29 15:05:10.111 23832-23832/com.myapp V/WRITE TIME: 1455030339
正如你可以看到＆＃34;数字＆＃34;的数组值和＆＃34;描述＆＃34;就在使用API 18进行db编写之前，使用API 22
是正确的当我使用API 18启动应用程序时，我注意到的奇怪警告如下：
02-29 14:50:57.264 2847-2847/? D/dalvikvm: Late-enabling CheckJNI
02-29 14:50:57.469 2847-2847/com.myapp W/dalvikvm: VFY: unable to find class referenced in signature (Landroid/view/SearchEvent;)
02-29 14:50:57.469 2847-2847/com.myapp I/dalvikvm: Could not find method android.view.Window$Callback.onSearchRequested, referenced from method android.support.v7.internal.view.WindowCallbackWrapper.onSearchRequested
02-29 14:50:57.469 2847-2847/com.myapp W/dalvikvm: VFY: unable to resolve interface method 18175: Landroid/view/Window$Callback;.onSearchRequested (Landroid/view/SearchEvent;)Z
02-29 14:50:57.469 2847-2847/com.myapp D/dalvikvm: VFY: replacing opcode 0x72 at 0x0002
02-29 14:50:57.469 2847-2847/com.myapp I/dalvikvm: Could not find method android.view.Window$Callback.onWindowStartingActionMode, referenced from method android.support.v7.internal.view.WindowCallbackWrapper.onWindowStartingActionMode
02-29 14:50:57.474 2847-2847/com.myapp W/dalvikvm: VFY: unable to resolve interface method 18179: Landroid/view/Window$Callback;.onWindowStartingActionMode (Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
02-29 14:50:57.474 2847-2847/com.myapp D/dalvikvm: VFY: replacing opcode 0x72 at 0x0002
02-29 14:50:57.519 2847-2847/com.myapp I/dalvikvm: Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
02-29 14:50:57.519 2847-2847/com.myapp W/dalvikvm: VFY: unable to resolve virtual method 490: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
02-29 14:50:57.519 2847-2847/com.myapp D/dalvikvm: VFY: replacing opcode 0x6e at 0x0002
02-29 14:50:57.524 2847-2847/com.myapp I/dalvikvm: Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
02-29 14:50:57.524 2847-2847/com.myapp W/dalvikvm: VFY: unable to resolve virtual method 512: Landroid/content/res/TypedArray;.getType (I)I
02-29 14:50:57.524 2847-2847/com.myapp D/dalvikvm: VFY: replacing opcode 0x6e at 0x0002
02-29 14:50:57.564 2847-2847/com.myapp I/dalvikvm: Could not find method android.content.res.Resources.getDrawable, referenced from method android.support.v7.internal.widget.ResourcesWrapper.getDrawable
02-29 14:50:57.564 2847-2847/com.myapp W/dalvikvm: VFY: unable to resolve virtual method 453: Landroid/content/res/Resources;.getDrawable (ILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
02-29 14:50:57.564 2847-2847/com.myapp D/dalvikvm: VFY: replacing opcode 0x6e at 0x0002
02-29 14:50:57.564 2847-2847/com.myapp I/dalvikvm: Could not find method android.content.res.Resources.getDrawableForDensity, referenced from method android.support.v7.internal.widget.ResourcesWrapper.getDrawableForDensity
02-29 14:50:57.564 2847-2847/com.myapp W/dalvikvm: VFY: unable to resolve virtual method 455: Landroid/content/res/Resources;.getDrawableForDensity (IILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
02-29 14:50:57.564 2847-2847/com.myapp D/dalvikvm: VFY: replacing opcode 0x6e at 0x0002
02-29 14:50:57.659 2847-2847/com.myapp D/libEGL: loaded /system/lib/egl/libEGL_mali.so
02-29 14:50:57.664 2847-2847/com.myapp D/libEGL: loaded /system/lib/egl/libGLESv1_CM_mali.so
02-29 14:50:57.669 2847-2847/com.myapp D/libEGL: loaded /system/lib/egl/libGLESv2_mali.so
02-29 14:50:57.729 2847-2847/com.myapp D/OpenGLRenderer: Enabling debug mode 0
答案 0 :(得分：0)
使用另一种迭代方法解决：
for(int i = 0; i < json.length(); i++){
String error = null;
try {
error = json.getJSONObject(i).getString("error");
} catch (JSONException e) {
//e.printStackTrace();
}
// If there are no errors go on
if(error == null) {
try {
dbn.addExtNumber(json.getJSONObject(i).getString("id"), user_id_get, json.getJSONObject(i).getString("number"), json.getJSONObject(i).getString("title"), json.getJSONObject(i).getString("description"), json.getJSONObject(i).getString("time_creation"));
} catch (JSONException e) {
e.printStackTrace();
}
} else if (Integer.parseInt(error) == 1){
final String no_contacts = getResources().getString(R.string.no_contacts_imported);
Toast.makeText(getApplicationContext(),
no_contacts, Toast.LENGTH_LONG).show();
break;
} else if (Integer.parseInt(error) == 2) {
final String contacts_error = getResources().getString(R.string.error_contacts_not_imported);
Toast.makeText(getApplicationContext(),
contacts_error, Toast.LENGTH_LONG).show();
break;
} else {
final String undefined_error = getResources().getString(R.string.undefined_error);
Toast.makeText(getApplicationContext(),
undefined_error, Toast.LENGTH_LONG).show();
break;
}
}