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    <p>Here is the offending line:</p> <p><code>String noten_history_string = String.valueOf(mNotenHistory);</code></p> <p>Look at this definition, from the Android documentation:</p> <pre><code>public static String valueOf(Object value) </code></pre> <blockquote> <p>Added in API level 1</p> <p>Converts the specified object to its string representation. If the object is null return the string "null", otherwise use <code>toString()</code> to get the string representation.</p> </blockquote> <p>The <code>TextView</code> class inherits <code>toString()</code> from the <code>View</code> class. Here is its definition:</p> <blockquote> <p><code>public String toString ()</code> Added in API level 1</p> <p>Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression: <code>getClass().getName() + '@' + Integer.toHexString(hashCode())</code></p> </blockquote> <p>So this is your problem. <code>String.valueOf(mNotenHistory)</code> does <strong>not</strong> give you the text within the text view. Thus, you are writing something else (specifically, the line you mentioned) to your file. To obtain the text from your <code>TextView</code>, use the <code>getText()</code> method instead. This is what the line should look like:</p> <pre><code>String noten_history_string = mNotenHistory.getText(); </code></pre>
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    1. COThanks for the explanation but it is still not working. If i change these lines Android Studio throws an error "Incompatible Types Required:java.lang.String Found: java.lang.CharSequence. The Quick fix would be -> Cast to java.lang.String or Wrap using String.ValueOf and then it is working but not exactly like i want.
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    2. COWhen you make the change, what is written to your text file?
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    3. COIf i write in the TextView a 6.0 \n 1.0 and it shows correctly in the TV. If i close/kill the app and watch the file manually with root explorer there is an \n 1.0 \n 1.0 \n 6.0. If i restart the app there is just a 6.0.
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Guidance
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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