我正在尝试使用
获取已发送/收件箱/草稿类型的所有短信Uri uri= Uri.parse("content://sms/");
它检索所有已发送/收件箱消息，但给出
java.lang.NullPointerException
在“地址”栏中我还尝试使用此阅读草稿短信
Uri uri = Uri.parse("content://sms/draft/");
但异常(exception)是相同的 谁能帮我解决这个问题 这是我的代码
private void getSMSDetails() {
StringBuffer stringBuffer = new StringBuffer();
stringBuffer.append("*********SMS History*************** :");
Uri uri = Uri.parse("content://sms");
Cursor cursor = getContentResolver().query(uri, null, null, null, null);
if (cursor.moveToFirst()) {
for (int i = 0; i < cursor.getCount(); i++) {
String body = cursor.getString(cursor.getColumnIndexOrThrow("body"))
.toString();
String number = cursor.getString(cursor.getColumnIndexOrThrow("address"))
.toString();
// String name = cursor.getString(cursor.getColumnIndexOrThrow("name"))
// .toString();
String date = cursor.getString(cursor.getColumnIndexOrThrow("date"))
.toString();
Date smsDayTime = new Date(Long.valueOf(date));
String type = cursor.getString(cursor.getColumnIndexOrThrow("type"))
.toString();
String typeOfSMS = null;
switch (Integer.parseInt(type)) {
case 1:
typeOfSMS = "INBOX";
break;
case 2:
typeOfSMS = "SENT";
break;
case 3:
typeOfSMS = "DRAFT";
break;
}
Log.d("Some details", "\nPhone Number:--- " + number + " \nMessage Type:--- "
+ typeOfSMS + " \nMessage Date:--- " + smsDayTime
+ " \nMessage Body:--- " + body
+ "Person name:--" + getContactName(
getApplicationContext(),
cursor.getString(cursor
.getColumnIndexOrThrow("address"))
));
stringBuffer.append("\n----------------------------------");
cursor.moveToNext();
}
}
cursor.close();
}
String getContactName(Context context, String phoneNumber) {
ContentResolver cr = context.getContentResolver();
Uri uri = Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI,
Uri.encode(phoneNumber));
Cursor cursor = cr.query(uri,
new String[] { PhoneLookup.DISPLAY_NAME }, null, null, null);
if (cursor == null) {
return null;
}
String contactName = null;
if (cursor.moveToFirst()) {
contactName = cursor.getString(cursor
.getColumnIndex(PhoneLookup.DISPLAY_NAME));
}
if (cursor != null && !cursor.isClosed()) {
cursor.close();
}
return contactName;
}
这是日志猫
04-22 13:45:13.406: D/AndroidRuntime(19046): Shutting down VM
04-22 13:45:13.406: W/dalvikvm(19046): threadid=1: thread exiting with uncaught exception (group=0x412d4300)
04-22 13:45:13.418: E/AndroidRuntime(19046): FATAL EXCEPTION: main
04-22 13:45:13.418: E/AndroidRuntime(19046): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.smsdata/com.example.smsdata.MainActivity}: java.lang.NullPointerException
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.app.ActivityThread.access$600(ActivityThread.java:130)
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.os.Handler.dispatchMessage(Handler.java:99)
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.os.Looper.loop(Looper.java:137)
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.app.ActivityThread.main(ActivityThread.java:4745)
04-22 13:45:13.418: E/AndroidRuntime(19046): at java.lang.reflect.Method.invokeNative(Native Method)
04-22 13:45:13.418: E/AndroidRuntime(19046): at java.lang.reflect.Method.invoke(Method.java:511)
04-22 13:45:13.418: E/AndroidRuntime(19046): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
04-22 13:45:13.418: E/AndroidRuntime(19046): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
04-22 13:45:13.418: E/AndroidRuntime(19046): at dalvik.system.NativeStart.main(Native Method)
04-22 13:45:13.418: E/AndroidRuntime(19046): Caused by: java.lang.NullPointerException
04-22 13:45:13.418: E/AndroidRuntime(19046): at com.example.smsdata.MainActivity.getSMSDetails(MainActivity.java:55)
04-22 13:45:13.418: E/AndroidRuntime(19046): at com.example.smsdata.MainActivity.onCreate(MainActivity.java:26)
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.app.Activity.performCreate(Activity.java:5008)
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
04-22 13:45:13.418: E/AndroidRuntime(19046): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
04-22 13:45:13.418: E/AndroidRuntime(19046): ... 11 more
最佳答案
使用此获取联系人姓名
@SuppressLint("NewApi")
public static String getContactName(Context context,
final String phoneNumber) {
Uri uri = Uri.withAppendedPath(
ContactsContract.PhoneLookup.CONTENT_FILTER_URI,
Uri.encode(phoneNumber));
String name = "";
ContentResolver contentResolver = context.getContentResolver();
Cursor contactLookup = contentResolver.query(uri, new String[] {
BaseColumns._ID, ContactsContract.PhoneLookup.DISPLAY_NAME },
null, null, null);
try {
if (contactLookup != null && contactLookup.getCount() > 0) {
contactLookup.moveToNext();
name = contactLookup.getString(contactLookup
.getColumnIndex(ContactsContract.Data.DISPLAY_NAME));
}
} finally {
if (contactLookup != null) {
contactLookup.close();
}
}
return name;
}
private void getSMSDetails() {
StringBuffer stringBuffer = new StringBuffer();
stringBuffer.append("*********SMS History*************** :");
Uri uri = Uri.parse("content://sms");
Cursor cursor = getContentResolver().query(uri, null, null, null, null);
if (cursor.moveToFirst()) {
for (int i = 0; i < cursor.getCount(); i++) {
String body = cursor.getString(
cursor.getColumnIndexOrThrow("body")).toString();
String number = cursor.getString(
cursor.getColumnIndexOrThrow("address")).toString();
// String name =
// cursor.getString(cursor.getColumnIndexOrThrow("name"))
// .toString();
String date = cursor.getString(
cursor.getColumnIndexOrThrow("date")).toString();
Date smsDayTime = new Date(Long.valueOf(date));
String type = cursor.getString(
cursor.getColumnIndexOrThrow("type")).toString();
String typeOfSMS = null;
switch (Integer.parseInt(type)) {
case 1:
typeOfSMS = "INBOX";
break;
case 2:
typeOfSMS = "SENT";
break;
case 3:
typeOfSMS = "DRAFT";
break;
}
Log.d("Some details","\nPhone Number:--- " + number + " \nMessage Type:--- "
+ typeOfSMS + " \nMessage Date:--- " + smsDayTime
+ " \nMessage Body:--- " + body
+"Person name:--"+ getContactName(
getApplicationContext(),number));
stringBuffer.append("\n----------------------------------");
cursor.moveToNext();
}
}
cursor.close();
}
关于java - 尝试在 Android 中获取所有 SMS 消息时出现 NullPointerException，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23214941/