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Asked: 2026-06-02T05:36:24+00:00

Am I doing something wrong when trying to copy TextView text to the clipboard?

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Am I doing something wrong when trying to copy TextView text to the clipboard?

My Code in my Activity Class:

@Override
public boolean onContextItemSelected(MenuItem item) {
    String selectedItem = item.getTitle().toString().trim();
    try {
    ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
    ClipData clip;
    if (selectedItem.equals("Copy Query")) {
        clip = ClipData.newPlainText("Query",tv1.getText());
    clipboard.setPrimaryClip(clip);
    }           
    return true;
}

The error:

04-17 03:10:54.056: E/AndroidRuntime(503): FATAL EXCEPTION: main
04-17 03:10:54.056: E/AndroidRuntime(503): java.lang.NoClassDefFoundError: android.content.ClipboardManager
04-17 03:10:54.056: E/AndroidRuntime(503):  at com.ewe.radixcalculator.CalculatorActivity.onContextItemSelected(CalculatorActivity.java:68)
04-17 03:10:54.056: E/AndroidRuntime(503):  at android.app.Activity.onMenuItemSelected(Activity.java:2199)
04-17 03:10:54.056: E/AndroidRuntime(503):  at com.android.internal.policy.impl.PhoneWindow$ContextMenuCallback.onMenuItemSelected(PhoneWindow.java:2744)
04-17 03:10:54.056: E/AndroidRuntime(503):  at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:143)
04-17 03:10:54.056: E/AndroidRuntime(503):  at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:855)
04-17 03:10:54.056: E/AndroidRuntime(503):  at com.android.internal.view.menu.MenuDialogHelper.onClick(MenuDialogHelper.java:137)
04-17 03:10:54.056: E/AndroidRuntime(503):  at com.android.internal.app.AlertController$AlertParams$3.onItemClick(AlertController.java:874)
04-17 03:10:54.056: E/AndroidRuntime(503):  at android.widget.AdapterView.performItemClick(AdapterView.java:284)
04-17 03:10:54.056: E/AndroidRuntime(503):  at android.widget.ListView.performItemClick(ListView.java:3382)
04-17 03:10:54.056: E/AndroidRuntime(503):  at android.widget.AbsListView$PerformClick.run(AbsListView.java:1696)
04-17 03:10:54.056: E/AndroidRuntime(503):  at android.os.Handler.handleCallback(Handler.java:587)
04-17 03:10:54.056: E/AndroidRuntime(503):  at android.os.Handler.dispatchMessage(Handler.java:92)
04-17 03:10:54.056: E/AndroidRuntime(503):  at android.os.Looper.loop(Looper.java:123)
04-17 03:10:54.056: E/AndroidRuntime(503):  at android.app.ActivityThread.main(ActivityThread.java:4627)
04-17 03:10:54.056: E/AndroidRuntime(503):  at java.lang.reflect.Method.invokeNative(Native Method)
04-17 03:10:54.056: E/AndroidRuntime(503):  at java.lang.reflect.Method.invoke(Method.java:521)
04-17 03:10:54.056: E/AndroidRuntime(503):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-17 03:10:54.056: E/AndroidRuntime(503):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-17 03:10:54.056: E/AndroidRuntime(503):  at dalvik.system.NativeStart.main(Native Method)
04-17 03:10:54.056: E/AndroidRuntime(503): Caused by: java.lang.ClassNotFoundException: android.content.ClipboardManager in loader dalvik.system.PathClassLoader[/data/app/com.ewe.radixcalculator-2.apk]
04-17 03:10:54.056: E/AndroidRuntime(503):  at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
04-17 03:10:54.056: E/AndroidRuntime(503):  at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
04-17 03:10:54.056: E/AndroidRuntime(503):  at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
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1 Answer

  1. Editorial Team

    From your stacktrace, it is obvious that ClipboardManager you are using is not found. A quick look up shows me that there are two ClipboardManager in Android.

    1. ClipboardManager (android.text.ClipboardManager) since API 1
    2. ClipboardManager (android.content.ClipboardManager) since API 11

    According to your implementation, I can guess that you intend to use latter one which only include in API 11. Thus, your code resulting in error.

    Eclipse doesn’t show you error because you had imported android.text.ClipboardManager in your import section.

    To solve the problem, import the correct package and point to relevant API version.

    If you want to use android.text.ClipboardManager for older versions, I think it should be fine. Here is how I would do it. Hope this helps. 

    @Override
public boolean onContextItemSelected(MenuItem item) {
    String selectedItem = item.getTitle().toString().trim();
    try {
    ClipboardManager clipboard = new ClipboardManager();
    if (selectedItem.equals("Copy Query")) {
        clipboard.setText(tv1.getText().toString());
    }           
    return true;
}
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