Example usage for android.support.v4.view AccessibilityDelegateCompat AccessibilityDelegateCompat

Introduction

In this page you can find the example usage for android.support.v4.view AccessibilityDelegateCompat AccessibilityDelegateCompat.

Prototype

public AccessibilityDelegateCompat() 

Source Link

Document

Creates a new instance.

Usage

From source file:com.android.datetimepicker.AccessibleTextView.java

private void installAccessibilityDelegate() {
    ViewCompat.setAccessibilityDelegate(this, new AccessibilityDelegateCompat() {
        @Override//w w w  .java  2  s.com
        public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
            super.onInitializeAccessibilityEvent(host, event);
            event.setClassName(Button.class.getName());
        }

        @Override
        public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
            super.onInitializeAccessibilityNodeInfo(host, info);
            info.setClassName(Button.class.getName());
        }
    });
}

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From source file:com.android.talkbacktests.testsession.RoleDescriptionTest.java

@Override
public View getView(final LayoutInflater inflater, ViewGroup container, Context context) {
    View view = inflater.inflate(R.layout.test_role_description, container, false);
    AccessibilityDelegateCompat buttonDelegate = new AccessibilityDelegateCompat() {
        @Override//  w  w  w  . ja v a  2s .  com
        public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
            super.onInitializeAccessibilityNodeInfo(host, info);
            info.setRoleDescription(getString(R.string.role_entry_point));
        }
    };
    View mailButton = view.findViewById(R.id.test_role_description_mailButton);
    mailButton.setContentDescription(getString(R.string.role_send_email));
    ViewCompat.setAccessibilityDelegate(mailButton, buttonDelegate);

    View playButton = view.findViewById(R.id.test_role_description_playButton);
    playButton.setContentDescription(getString(R.string.role_send_email));
    ViewCompat.setAccessibilityDelegate(playButton, buttonDelegate);

    View lockButton = view.findViewById(R.id.test_role_description_lockButton);
    lockButton.setContentDescription(getString(R.string.role_lock_screen));
    ViewCompat.setAccessibilityDelegate(lockButton, buttonDelegate);

    return view;
}

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From source file:com.facebook.react.uimanager.AccessibilityDelegateUtil.java

public static void setDelegate(final View view) {
    // if a view already has an accessibility delegate, replacing it could cause problems,
    // so leave it alone.
    if (!ViewCompat.hasAccessibilityDelegate(view)) {
        ViewCompat.setAccessibilityDelegate(view, new AccessibilityDelegateCompat() {
            @Override/*w  w  w.  j  a v a 2s  .  c  o m*/
            public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
                super.onInitializeAccessibilityNodeInfo(host, info);
                String accessibilityHint = (String) view.getTag(R.id.accessibility_hint);
                AccessibilityRole accessibilityRole = (AccessibilityRole) view.getTag(R.id.accessibility_role);
                if (accessibilityRole == null) {
                    accessibilityRole = AccessibilityRole.NONE;
                }
                setRole(info, accessibilityRole, view.getContext());
                if (!(accessibilityHint == null)) {
                    String contentDescription = (String) info.getContentDescription();
                    if (contentDescription != null) {
                        contentDescription = contentDescription + ", " + accessibilityHint;
                        info.setContentDescription(contentDescription);
                    } else {
                        info.setContentDescription(accessibilityHint);
                    }
                }
            }
        });
    }
}

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From source file:com.facebook.react.uimanager.AccessibilityRoleUtil.java

public static void setRole(final View view, final AccessibilityRole role) {
    // if a view already has an accessibility delegate, replacing it could cause problems,
    // so leave it alone.
    if (!ViewCompat.hasAccessibilityDelegate(view)) {
        ViewCompat.setAccessibilityDelegate(view, new AccessibilityDelegateCompat() {
            @Override/*from w  w w.  j  a v  a2s  . co m*/
            public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
                super.onInitializeAccessibilityNodeInfo(host, info);
                setRole(info, role, view.getContext());
            }
        });
    }
}

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From source file:android.support.design.widget.CheckableImageButton.java

public CheckableImageButton(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);

    ViewCompat.setAccessibilityDelegate(this, new AccessibilityDelegateCompat() {
        @Override//  w w  w.  j a v a  2  s  .com
        public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
            super.onInitializeAccessibilityEvent(host, event);
            event.setChecked(isChecked());
        }

        @Override
        public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
            super.onInitializeAccessibilityNodeInfo(host, info);
            info.setCheckable(true);
            info.setChecked(isChecked());
        }
    });
}

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From source file:com.redinput.datetimepickercompat.AccessibleLinearLayout.java

private void installAccessibilityDelegate() {
    // The accessibility delegate enables customizing accessibility behavior
    // via composition as opposed as inheritance. The main benefit is that
    // one can write a backwards compatible application by setting the delegate
    // only if the API level is high enough i.e. the delegate is part of the APIs.
    // The easiest way to achieve that is by using the support library which
    // takes the burden of checking API version and knowing which API version
    // introduced the delegate off the developer.
    ViewCompat.setAccessibilityDelegate(this, new AccessibilityDelegateCompat() {

        @Override/*from   w w  w  .  ja v  a 2s.  c  o m*/
        public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
            super.onInitializeAccessibilityEvent(host, event);
            // Note that View.onInitializeAccessibilityNodeInfo was introduced in
            // ICS and we would like to tweak a bit the text that is reported to
            // accessibility services via the AccessibilityNodeInfo.
            event.getText().add(Button.class.getName());
        }

        @Override
        public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
            super.onInitializeAccessibilityNodeInfo(host, info);
            // Note that View.onInitializeAccessibilityNodeInfo was introduced in
            // ICS and we would like to tweak a bit the text that is reported to
            // accessibility services via the AccessibilityNodeInfo.
            info.setText(Button.class.getName());
        }
    });
}

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From source file:com.google.android.apps.forscience.whistlepunk.review.GraphExploringSeekBar.java

private void init() {
    // Use an AccessibilityDelegate to add custom text to Accessibility events.
    ViewCompat.setAccessibilityDelegate(this, new AccessibilityDelegateCompat() {
        @Override//  w w  w .  ja va 2  s . c  o m
        public void onPopulateAccessibilityEvent(View host, AccessibilityEvent event) {
            super.onPopulateAccessibilityEvent(host, event);
            event.getText().clear();
            event.getText().add(generateEventText());
        }

        @Override
        public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
            super.onInitializeAccessibilityNodeInfo(host, info);
            info.setText(generateEventText());
        }
    });

    Resources res = getContext().getResources();
    mFormat = res.getString(R.string.graph_exploring_seekbar_content_description);

    // Always use LTR layout, since graphs are always LTR.
    setLayoutDirection(LAYOUT_DIRECTION_LTR);
}

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From source file:com.finchuk.clock2.alarms.ui.TempCheckableImageButton.java

public TempCheckableImageButton(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);

    ViewCompat.setAccessibilityDelegate(this, new AccessibilityDelegateCompat() {
        @Override//from   w ww.  j a  va  2  s . c  o  m
        public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
            super.onInitializeAccessibilityEvent(host, event);
            event.setChecked(isChecked());
        }

        @Override
        public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
            super.onInitializeAccessibilityNodeInfo(host, info);
            info.setCheckable(true);
            info.setChecked(isChecked());
        }
    });
}

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From source file:com.android.talkbacktests.testsession.StandardAndroidWidgetTest.java

@Override
public View getView(final LayoutInflater inflater, ViewGroup container, final Context context) {
    View view = inflater.inflate(R.layout.test_standard_android_widget, container, false);
    final Button contDescButton = (Button) view.findViewById(R.id.test_standard_android_widget_button2);
    contDescButton.setOnClickListener(new View.OnClickListener() {
        @Override/* w  w  w  . j a v  a 2  s  .c o  m*/
        public void onClick(View view) {
            mCount++;
            contDescButton.setContentDescription(getString(R.string.toast_content_changed_template, mCount));
        }
    });
    Button toastButton = (Button) view.findViewById(R.id.test_standard_android_widget_button3);
    toastButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Toast.makeText(context, R.string.toast_expand_button_clicked, Toast.LENGTH_LONG).show();
        }
    });
    ViewCompat.setAccessibilityDelegate(toastButton, new AccessibilityDelegateCompat() {
        public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
            super.onInitializeAccessibilityNodeInfo(host, info);
            info.addAction(new AccessibilityNodeInfoCompat.AccessibilityActionCompat(
                    AccessibilityNodeInfoCompat.ACTION_CLICK, getString(R.string.expand_button_action_label)));
        }
    });

    ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(context, R.array.city_array,
            android.R.layout.simple_spinner_item);

    Spinner spinner = (Spinner) view.findViewById(R.id.test_standard_android_widget_spinner);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spinner.setAdapter(adapter);

    AutoCompleteTextView autocomplete = (AutoCompleteTextView) view
            .findViewById(R.id.test_standard_android_widget_autocomplete);
    autocomplete.setAdapter(adapter);

    mProgressBar = (ProgressBar) view.findViewById(R.id.test_standard_android_widget_progress_bar);
    mRunnable = new Runnable() {

        @Override
        public void run() {
            mProgressStatus += 5;
            mProgressBar.setProgress(mProgressStatus);
            if (mProgressStatus < 100) {
                mHandler.postDelayed(this, 1000);
            }
        }
    };
    resetProgressBar();

    View resetProgressBarButton = view.findViewById(R.id.test_standard_android_widget_reset_button);
    resetProgressBarButton.setOnClickListener(this);

    return view;
}

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From source file:android.support.design.widget.BottomSheetDialog.java

private View wrapInBottomSheet(int layoutResId, View view, ViewGroup.LayoutParams params) {
    final CoordinatorLayout coordinator = (CoordinatorLayout) View.inflate(getContext(),
            R.layout.design_bottom_sheet_dialog, null);
    if (layoutResId != 0 && view == null) {
        view = getLayoutInflater().inflate(layoutResId, coordinator, false);
    }/* www .  j ava 2s . c  o  m*/
    FrameLayout bottomSheet = (FrameLayout) coordinator.findViewById(R.id.design_bottom_sheet);
    mBehavior = BottomSheetBehavior.from(bottomSheet);
    mBehavior.setBottomSheetCallback(mBottomSheetCallback);
    mBehavior.setHideable(mCancelable);
    if (params == null) {
        bottomSheet.addView(view);
    } else {
        bottomSheet.addView(view, params);
    }
    // We treat the CoordinatorLayout as outside the dialog though it is technically inside
    coordinator.findViewById(R.id.touch_outside).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (mCancelable && isShowing() && shouldWindowCloseOnTouchOutside()) {
                cancel();
            }
        }
    });
    // Handle accessibility events
    ViewCompat.setAccessibilityDelegate(bottomSheet, new AccessibilityDelegateCompat() {
        @Override
        public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info) {
            super.onInitializeAccessibilityNodeInfo(host, info);
            if (mCancelable) {
                info.addAction(AccessibilityNodeInfoCompat.ACTION_DISMISS);
                info.setDismissable(true);
            } else {
                info.setDismissable(false);
            }
        }

        @Override
        public boolean performAccessibilityAction(View host, int action, Bundle args) {
            if (action == AccessibilityNodeInfoCompat.ACTION_DISMISS && mCancelable) {
                cancel();
                return true;
            }
            return super.performAccessibilityAction(host, action, args);
        }
    });
    return coordinator;
}

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