check cursor null android

I added in a projection so you are only getting the column you need. String...

I added in a projection so you are only getting the column you need. String[] projection = new String[] { dwn.220.v.uaDataKinds.

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if (!(dwn.220.v.uaFirst()) || dwn.220.v.uant() ==0){ //cursor is empty }....

if (!(dwn.220.v.uaFirst()) || dwn.220.v.uant() ==0){ //cursor is empty }.

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You can check to see whether or not it is empty with the following statemen...

You can check to see whether or not it is empty with the following statement: if (dwn.220.v.uafirst() && dwn.220.v.uant > 0). or if (c!= null && c.

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int index = dwn.220.v.uaumnIndex("description"); String str = dwn...

int index = dwn.220.v.uaumnIndex("description"); String str = dwn.220.v.uaing(index); if (str == null || dwn.220.v.uay() || dwn.220.v.uaIgnoreCase("null")).

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dwn.220.v.ua#getCount Per the docs, the method returns false if the cursor ...

dwn.220.v.ua#getCount Per the docs, the method returns false if the cursor is empty.

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I think you want to nest those if blocks: if (mCursor!= null) { dwn.220.v.u...

I think you want to nest those if blocks: if (mCursor!= null) { dwn.220.v.uaFirst(); if (dwn.220.v.ua(0)) { Log.d("data", "null"); } } return.

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You need to check if it's null yourself. Long l = null; if (!dwn.220.v...

You need to check if it's null yourself. Long l = null; if (!dwn.220.v.ua(7)) l = dwn.220.v.uag(7);.

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Maybe your COLUMN_FIELDS_PARAMETER will have a default value. Why don'...

Maybe your COLUMN_FIELDS_PARAMETER will have a default value. Why don't you check the value by yourself？ int parameter = c.

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Cursor cursor = null; String Query ="SELECT * FROM Task where taskId =...

Cursor cursor = null; String Query ="SELECT * FROM Task where taskId = 1 "; cursor use this or this open it and check if anything wrong.

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You are comparing the user ID against a string value, which will never succ...

You are comparing the user ID against a string value, which will never succeed if your user IDs are numbers. In Android, you should use query.

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So you don't need to check whether the Cursor is null. How to find out...

So you don't need to check whether the Cursor is null. How to find out whether the Cursor is empty or (if it's not) whether the column value is.

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Believe me you MUST check it for null (I would have made the 'must...

Believe me you MUST check it for null (I would have made the 'must' glow and jump around if i could), if you want to avoid cursor related.

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Be safe and make your code solid, check for null. You can refer to this cod...

Be safe and make your code solid, check for null. You can refer to this code from Android. As we can see it is possible to get null.

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Value returned by getType(int) if the specified column is null . column wil...

Value returned by getType(int) if the specified column is null . column will exist or not use getColumnIndex(String) and check for -1, which is more efficient than.

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It seems an easy task, but I can't figure out how to check if the sear...

It seems an easy task, but I can't figure out how to check if the searchcursor object is empty. I know that it is empty because the query fails.

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