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Error type 3 Activity class does not exist


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Try some solution - each individually or all

  1. Check AndroidManifest.xml activity declaration
    <activity
                android:name=".EnableProfileActivity"
                android:label="@string/app_name" />


  2. Delete BUILD folder in module tree and Clean / Rebuild project

  3. Restart Android Studio


397LW NO topic_id




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Další témata ....(Topics)


366

App have transparent menu Android | app-have-transparent-menu-android


If the app have transparent menu and you do not want this,
try delete @style/AppTheme in application tag in AndroidManifest.xml
and try run module - project. If menu is not transparent , maybe it caused

 <application
        android:allowBackup="true"
        android:icon="@drawable/dicts_ico"
        android:label="@string/app_name" 
        android:theme="@style/AppTheme" // delete this row - run app - try menu
 >


Or try set values\styles.xml into basic Theme

<resources>

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
    -->
    <style name="AppBaseTheme" parent="android:Theme.Black">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
    </style>

</resources>

256

Save Restore Array List Android Example | save-restore-array-list-android-example



        int[] mArrayOfInt;
        String[] mArrayOfString;
        List<String> mList;
        public void saveState(Bundle map)
        {
                map.putIntArray("mArrayOfInt", mArrayOfInt);
                map.putStringArray("mArrayOfString", mArrayOfString);
                map.putStringArrayList("mList", mList);
        }

        public void restoreState(Bundle map)
        {
                mArrayOfInt= map.getIntArray("mArrayOfInt");
                mArrayOfString = map.getStringArray("mArrayOfString");
                mList = map.getStringArrayList("mList");

        }

71

For cycle loop in Java example | for-cycle-loop-in-java-example


Cycle for in Java example

public class MainClass {
	public static void main(String[] arg) {
		String[] arrayOfString = { "Hello", "people", "hello", "world!" };

		for (int i = 0; // start position , first cycle i == 0
                      i < arrayOfString.length; // if i < 4 (length of array) do loop
                       i++ // incrementation after cycle
                       ){
			System.out.println(arrayOfString[i]); 
                       // i++ incrementation
		}
	}
}

279

Start Open New Activity Android Code | start-open-new-activity-android-code



      Intent i = new Intent(this, MyNextClass.class);
      startActivity(i);


25

Copy sqlite database from apk package to device folder Android example | copy-sqlite-database-from-apk-to-device-folder-android-example


Put your sglite database to Android Eclipse project folder named Assets.
On device will copy database file to application folder as this example:



 public void createDatabase(Context myContext) throws IOException {
    String sPackName = myContext.getPackageName();
    InputStream assetsDB = myContext.getAssets().open("myDatabase");
    OutputStream dbOut = new FileOutputStream("/data/data/"+sPackName+"/database");
 
    byte[] buffer = new byte[1024];
    int length;
    while ((length = assetsDB.read(buffer))>0){
      dbOut.write(buffer, 0, length);
    }
 
    dbOut.flush();
    dbOut.close();
    assetsDB.close();
}




Editace: 2017-03-11 11:34:08
Počet článků v kategorii: 397
Url:error-type-3-activity-class-does-not-exist

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