How to disable user interaction while ProgressBar is visible in android?

问题:

I am using a custom ProgressBar. Now while a task is going on, I am showing the progress bar, but user can still interact with the views and controls. How do I disable the user interaction on whole view just like a ProgressDialog does , when it is visible.

Do I need to use a transparent view on top of main view and show the progress bar on that view and hide that view once a task is completed.

Or just get the id of my parentView and set it disabled ? But then I won't be able to dim the background, just like what happens when a dialog appears on the view/Activity/Fragment. Right?

I just want to know the way to disallow the user from any interaction while the progressbar is visible.

Thanks

回答1:

Your question: How to disable the user interaction while ProgressBar is visible in android?

To disable the user interaction you just need to add the following code

getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,                     WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE); 

To get user interaction back you just need to add the following code

getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE); 

Here is an example: Note:I am giving you just an example to show how to disable or retain user interaction

Add a progress bar in your xml.Something like this

<ProgressBar     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:id="@+id/progressBar"     android:visibility="gone"/> 

In MainActivity when a button pressed you show the progressbar and disable the user interaction.

@Override protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main);     mImageView = (ImageView) findViewById(R.id.imageView);     mProgressBar = (ProgressBar) findViewById(R.id.progressBar);     mImageView.setOnClickListener(new View.OnClickListener() {         @Override         public void onClick(View v) {             mProgressBar.setVisibility(View.VISIBLE);             getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,                     WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);         }     }); } 

And when user backPressed you remove the progressbar again retain the user interaction.Something like this

  @Override public void onBackPressed() {     super.onBackPressed();     mProgressBar.setVisibility(View.GONE);     getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE); } 

If you want to add a feature of disable and greyed out display, you need to add in your xml layout file a linear layout that fills the parent. Set its background to #B0000000 and its visibilty to Gone. Than programicly set its visibility to Visible.

Hope this help!

回答2:

just set:

android:clickable="true"  

in your xml

<ProgressBar... 

Only this makes magic!

回答3:

I have fixed this issue by adding root layout to the ProgressBar.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_height="match_parent"     android:layout_width="match_parent"     android:clickable="true"     android:gravity="center"     android:visibility="gone"     android:id="@+id/progress">     <ProgressBar         style="?android:attr/progressBarStyleLarge"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_centerInParent="true"         android:indeterminate="true"         android:indeterminateTintMode="src_atop"         android:indeterminateTint="@color/primary"/> </LinearLayout> 

Made the root layout clickable

android:clickable="true" 

NOTE: In my main view, I had RelativeLayout as root and have added above-mentioned code inside the root layout at the last position (last child).

Hope this helps!!

回答4:

Use document default method progressbar.setCancelable(false)

回答5:

Make a dialog with transparent background. The issue with getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE, WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE); is that when app will go in background and come back user will be able to interact with UI components, a lot more handling. So for blocking UI make a transparent dialog and if you want to set time for hide/show. Do this in a runnable thread. So the solution will be

public class TransparentDialogHelper {      private Dialog overlayDialog;      @Inject     public TransparentDialogHelper() {      }      public void showDialog(Context context) {         if (AcmaUtility.isContextFinishing(context)) {             return;         }         if (overlayDialog == null) {             overlayDialog = new Dialog(context, android.R.style.Theme_Panel);             overlayDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_UNCHANGED);         }         overlayDialog.show();     }      public void hideDialog() {         if (overlayDialog == null || AcmaUtility.isContextFinishing(overlayDialog.getContext())) {             return;         }         overlayDialog.cancel();     } }  -------- Timer  Handler handler = new Handler(); handler.postDelayed( () -> {     view.hideProgress(); }, 2000); 

回答6:

Make your parent layout as Relative Layout & add this :

    <RelativeLayout ... >      <other layout elements over which prog bar will appear>  <RelativeLayout android:id="@+id/rl_progress_bar"                 android:layout_width="match_parent" android:clickable="true"                 android:layout_height="match_parent" > <ProgressBar android:id="@+id/pb"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:layout_centerInParent="true"              android:indeterminateOnly="true"              style="@android:style/Widget.DeviceDefault.ProgressBar"              android:theme="@style/AppTheme.MyProgressBar"     /> </RelativeLayout> 

If you have floating buttons in your UI, they still grab all the focus & remain clickable when the progress bar is visible. for this use : (when your prog bar is visible & re-enable them when you make your prog bar invisible/gone)

fb.setEnabled(false); 

回答7:

You could use a ProgressDialog like this;

ProgressDialog progressBar = new ProgressDialog(MainActivity.this); progressBar.setMessage("YourMessageHere"); progressBar.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressBar.setCancelable(false); progressBar.show(); 

文章来源: How to disable user interaction while ProgressBar is visible in android?