progress bar - How to hide and show the Progressbar in android? -


i have written code load progressbar , have button click make invisible. click listener not working when clicking button.my app shows anr.

this code: layout:

   <progressbar     style="?android:attr/progressbarstylelarge"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_centervertical="true"     android:layout_alignleft="@+id/textview6"     android:layout_alignstart="@+id/textview6"     android:id="@+id/progressbar2" />     <button xmlns:android="http://schemas.android.com/apk/res/android"     android:id="@+id/button_send"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:text="stop progressbar"     android:onclick="stoppb" />

and java file;

public void stoppb(bundle view) {     super.oncreate(view);     setcontentview(r.layout.content_main);     progressbar pb = (progressbar) findviewbyid(r.id.progressbar2);     pb.setvisibility(view.gone); }

i started android yesterday , i'm 14 years old... please me. tnx!

do :

public void stoppb(view view) { progressbar pb = (progressbar) findviewbyid(r.id.progressbar2); pb.setvisibility(view.gone); }

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