Example usage for android.view View requestFocus

Introduction

In this page you can find the example usage for android.view View requestFocus.

Prototype

public final boolean requestFocus() 

Source Link

Document

Call this to try to give focus to a specific view or to one of its descendants.

Usage

From source file:android.support.v17.leanback.widget.GridLayoutManager.java

void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) {
    if (gainFocus) {
        // if gridview.requestFocus() is called, select first focusable child.
        for (int i = mFocusPosition;; i++) {
            View view = findViewByPosition(i);
            if (view == null) {
                break;
            }//from   w  ww. j  a v a  2 s  .  c o  m
            if (view.getVisibility() == View.VISIBLE && view.hasFocusable()) {
                view.requestFocus();
                break;
            }
        }
    }
}

---

From source file:com.isapp.android.circularviewpager.CircularViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this) {
        currentFocused = null;//from  ww  w .  j  a  va  2  s.  co m
    } else if (currentFocused != null) {
        boolean isChild = false;
        for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                .getParent()) {
            if (parent == this) {
                isChild = true;
                break;
            }
        }
        if (!isChild) {
            // This would cause the focus search down below to fail in fun ways.
            final StringBuilder sb = new StringBuilder();
            sb.append(currentFocused.getClass().getSimpleName());
            for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                    .getParent()) {
                sb.append(" => ").append(parent.getClass().getSimpleName());
            }
            Log.e(TAG, "arrowScroll tried to find focus based on non-child " + "current focused view "
                    + sb.toString());
            currentFocused = null;
        }
    }
    boolean handled = false;
    View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction);
    if (nextFocused != null && nextFocused != currentFocused) {
        if (direction == View.FOCUS_LEFT) {
            // If there is nothing to the left, or this is causing us to
            // jump to the right, then what we really want to do is page left.
            final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left;
            final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left;
            if (currentFocused != null && nextLeft >= currLeft) {
                handled = pageLeft();
            } else {
                handled = nextFocused.requestFocus();
            }
        } else if (direction == View.FOCUS_RIGHT) {
            // If there is nothing to the right, or this is causing us to
            // jump to the left, then what we really want to do is page right.
            final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left;
            final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left;
            if (currentFocused != null && nextLeft <= currLeft) {
                handled = pageRight();
            } else {
                handled = nextFocused.requestFocus();
            }
        }
    } else if (direction == FOCUS_LEFT || direction == FOCUS_BACKWARD) {
        // Trying to move left and nothing there; try to page.
        handled = pageLeft();
    } else if (direction == FOCUS_RIGHT || direction == FOCUS_FORWARD) {
        // Trying to move right and nothing there; try to page.
        handled = pageRight();
    }
    if (handled) {
        playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
    }
    return handled;
}

---

From source file:com.borqs.se.addobject.AddObjectViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this) {
        currentFocused = null;/* w  w  w .j  a  va2 s.  c  o  m*/
    } else if (currentFocused != null) {
        boolean isChild = false;
        for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                .getParent()) {
            if (parent == this) {
                isChild = true;
                break;
            }
        }
        if (!isChild) {
            // This would cause the focus search down below to fail in fun ways.
            final StringBuilder sb = new StringBuilder();
            sb.append(currentFocused.getClass().getSimpleName());
            for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                    .getParent()) {
                sb.append(" => ").append(parent.getClass().getSimpleName());
            }
            currentFocused = null;
        }
    }

    boolean handled = false;

    View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction);
    if (nextFocused != null && nextFocused != currentFocused) {
        if (direction == View.FOCUS_LEFT) {
            // If there is nothing to the left, or this is causing us to
            // jump to the right, then what we really want to do is page left.
            final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left;
            final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left;
            if (currentFocused != null && nextLeft >= currLeft) {
                handled = pageLeft();
            } else {
                handled = nextFocused.requestFocus();
            }
        } else if (direction == View.FOCUS_RIGHT) {
            // If there is nothing to the right, or this is causing us to
            // jump to the left, then what we really want to do is page right.
            final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left;
            final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left;
            if (currentFocused != null && nextLeft <= currLeft) {
                handled = pageRight();
            } else {
                handled = nextFocused.requestFocus();
            }
        }
    } else if (direction == FOCUS_LEFT || direction == FOCUS_BACKWARD) {
        // Trying to move left and nothing there; try to page.
        handled = pageLeft();
    } else if (direction == FOCUS_RIGHT || direction == FOCUS_FORWARD) {
        // Trying to move right and nothing there; try to page.
        handled = pageRight();
    }
    if (handled) {
        playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
    }
    return handled;
}

---

From source file:com.rbware.github.androidcouchpotato.widget.GridLayoutManager.java

private void scrollToFocusViewInLayout(boolean hadFocus, boolean alignToView) {
    View focusView = findViewByPosition(mFocusPosition);
    if (focusView != null && alignToView) {
        scrollToView(focusView, false);/* w  ww. j  a  va  2s.c  om*/
    }
    if (focusView != null && hadFocus && !focusView.hasFocus()) {
        focusView.requestFocus();
    } else if (!hadFocus && !mBaseGridView.hasFocus()) {
        if (focusView != null && focusView.hasFocusable()) {
            mBaseGridView.focusableViewAvailable(focusView);
        } else {
            for (int i = 0, count = getChildCount(); i < count; i++) {
                focusView = getChildAt(i);
                if (focusView != null && focusView.hasFocusable()) {
                    mBaseGridView.focusableViewAvailable(focusView);
                    break;
                }
            }
            // focusViewAvailable() might focus to the view, scroll to it if that is the case.
            if (alignToView && focusView != null && focusView.hasFocus()) {
                scrollToView(focusView, false);
            }
        }
    }
}

---

From source file:VerticalViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this) {
        currentFocused = null;//ww  w .  j  a  v a2  s.  com
    } else if (currentFocused != null) {
        boolean isChild = false;
        for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                .getParent()) {
            if (parent == this) {
                isChild = true;
                break;
            }
        }
        if (!isChild) {
            // This would cause the focus search down below to fail in fun ways.
            final StringBuilder sb = new StringBuilder();
            sb.append(currentFocused.getClass().getSimpleName());
            for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                    .getParent()) {
                sb.append(" => ").append(parent.getClass().getSimpleName());
            }
            Log.e(TAG, "arrowScroll tried to find focus based on non-child " + "current focused view "
                    + sb.toString());
            currentFocused = null;
        }
    }

    boolean handled = false;

    View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction);
    if (nextFocused != null && nextFocused != currentFocused) {
        if (direction == View.FOCUS_UP) {
            // If there is nothing up, or this is causing us to
            // jump down, then what we really want to do is page down.
            final int nextUp = getChildRectInPagerCoordinates(mTempRect, nextFocused).top;
            final int currUp = getChildRectInPagerCoordinates(mTempRect, currentFocused).top;

            if (currentFocused != null && nextUp >= currUp) {
                handled = pageUp();
            } else {
                handled = nextFocused.requestFocus();
            }
        } else if (direction == View.FOCUS_DOWN) {
            // If there is nothing to the bottom, or this is causing us to
            // jump up, then what we really want to do is page bottom.
            final int nextDown = getChildRectInPagerCoordinates(mTempRect, nextFocused).bottom;
            final int currDown = getChildRectInPagerCoordinates(mTempRect, currentFocused).bottom;
            if (currentFocused != null && nextDown <= currDown) {
                handled = pageDown();
            } else {
                handled = nextFocused.requestFocus();
            }
        }
    } else if (direction == FOCUS_UP || direction == FOCUS_BACKWARD) {
        // Trying to move left and nothing there; try to page.
        handled = pageUp();
    } else if (direction == FOCUS_DOWN || direction == FOCUS_FORWARD) {
        // Trying to move right and nothing there; try to page.
        handled = pageDown();
    }
    if (handled) {
        playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
    }
    return handled;
}

---

From source file:com.ok.utils.widget.ViewPagerModify.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this) {
        currentFocused = null;/*  www  .ja  v a 2 s  . c o m*/
    } else if (currentFocused != null) {
        boolean isChild = false;
        for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                .getParent()) {
            if (parent == this) {
                isChild = true;
                break;
            }
        }
        if (!isChild) {
            // This would cause the focus search down below to fail in fun ways.
            final StringBuilder sb = new StringBuilder();
            sb.append(currentFocused.getClass().getSimpleName());
            for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                    .getParent()) {
                sb.append(" => ").append(parent.getClass().getSimpleName());
            }
            LogUtils.e(TAG, "arrowScroll tried to find focus based on non-child " + "current focused view "
                    + sb.toString());
            currentFocused = null;
        }
    }

    boolean handled = false;

    View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction);
    if (nextFocused != null && nextFocused != currentFocused) {
        if (direction == View.FOCUS_LEFT) {
            // If there is nothing to the left, or this is causing us to
            // jump to the right, then what we really want to do is page left.
            final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left;
            final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left;
            if (currentFocused != null && nextLeft >= currLeft) {
                handled = pageLeft();
            } else {
                handled = nextFocused.requestFocus();
            }
        } else if (direction == View.FOCUS_RIGHT) {
            // If there is nothing to the right, or this is causing us to
            // jump to the left, then what we really want to do is page right.
            final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left;
            final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left;
            if (currentFocused != null && nextLeft <= currLeft) {
                handled = pageRight();
            } else {
                handled = nextFocused.requestFocus();
            }
        }
    } else if (direction == FOCUS_LEFT || direction == FOCUS_BACKWARD) {
        // Trying to move left and nothing there; try to page.
        handled = pageLeft();
    } else if (direction == FOCUS_RIGHT || direction == FOCUS_FORWARD) {
        // Trying to move right and nothing there; try to page.
        handled = pageRight();
    }
    if (handled) {
        playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
    }
    return handled;
}

---

From source file:com.stone.card.VerticalViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this)
        currentFocused = null;/*from   w ww .  j  ava 2  s  .c  o  m*/

    boolean handled = false;

    View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction);
    if (nextFocused != null && nextFocused != currentFocused) {
        if (direction == View.FOCUS_UP) {
            // If there is nothing to the left, or this is causing us to
            // jump to the right, then what we really want to do is page
            // left.

            final int nextUp = getChildRectInPagerCoordinates(mTempRect, nextFocused).top;
            final int currUp = getChildRectInPagerCoordinates(mTempRect, currentFocused).top;

            if (currentFocused != null && nextUp >= currUp) {
                handled = pageUp();
            } else {
                handled = nextFocused.requestFocus();
            }
        } else if (direction == View.FOCUS_RIGHT) {
            // If there is nothing to the right, or this is causing us to
            // jump to the left, then what we really want to do is page
            // right.

            final int nextDown = getChildRectInPagerCoordinates(mTempRect, nextFocused).bottom;
            final int currDown = getChildRectInPagerCoordinates(mTempRect, currentFocused).bottom;
            if (currentFocused != null && nextDown <= currDown) {
                handled = pageDown();
            } else {
                handled = nextFocused.requestFocus();
            }
        }
    } else if (direction == FOCUS_LEFT || direction == FOCUS_BACKWARD) {
        // Trying to move left and nothing there; try to page.
        handled = pageUp();
    } else if (direction == FOCUS_RIGHT || direction == FOCUS_FORWARD) {
        // Trying to move right and nothing there; try to page.
        handled = pageDown();
    }
    if (handled) {
        playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
    }
    return handled;
}

---

From source file:com.suning.boxcontroller.control.ExViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this) {
        currentFocused = null;// w  ww. j a v a2s  . co  m
    }

    boolean handled = false;

    View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction);
    if (nextFocused != null && nextFocused != currentFocused) {
        if (direction == View.FOCUS_LEFT) {
            // If there is nothing to the left, or this is causing us to
            // jump to the right, then what we really want to do is page left.
            final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left;
            final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left;
            if (currentFocused != null && nextLeft >= currLeft) {
                handled = pageLeft();
            } else {
                handled = nextFocused.requestFocus();
            }
        } else if (direction == View.FOCUS_RIGHT) {
            // If there is nothing to the right, or this is causing us to
            // jump to the left, then what we really want to do is page right.
            final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left;
            final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left;
            if (currentFocused != null && nextLeft <= currLeft) {
                handled = pageRight();
            } else {
                handled = nextFocused.requestFocus();
            }
        }
    } else if (direction == FOCUS_LEFT || direction == FOCUS_BACKWARD) {
        // Trying to move left and nothing there; try to page.
        handled = pageLeft();
    } else if (direction == FOCUS_RIGHT || direction == FOCUS_FORWARD) {
        // Trying to move right and nothing there; try to page.
        handled = pageRight();
    }
    if (handled) {
        playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
    }
    return handled;
}

---

From source file:me.tipi.kiosk.ui.fragments.IdentityFragment.java

/**
 * Is error boolean./*from w ww .j  a  v a 2  s. c o  m*/
 *
 * @return the boolean
 */
private boolean isError() {

    firstNameLayout.setErrorEnabled(false);
    lastNameLayout.setErrorEnabled(false);
    birthdayLayout.setErrorEnabled(false);
    firstNameLayout.setError(null);
    lastNameLayout.setError(null);
    birthdayLayout.setError(null);
    passportLayout.setError(null);

    boolean cancel = false;
    View focusView = null;

    enteredFirstName = firstNameTextView.getText().toString().trim();
    enteredFirstName = enteredFirstName.replaceAll("\\s{2,}", " ");
    enteredLastName = lastNameTextView.getText().toString().trim();
    enteredLastName = enteredLastName.replaceAll("\\s{2,}", " ");
    enteredHomeTown = homeTownACView.getText().toString().trim();
    enteredPassport = passportEditText.getText().toString().trim();

    Calendar cal = Calendar.getInstance();
    cal.set(Calendar.YEAR, 1900);

    // Check for validation
    if (TextUtils.isEmpty(enteredFirstName)) {
        firstNameTextView.setError(getString(R.string.error_field_required));
        focusView = firstNameTextView;
        cancel = true;
    } else if (TextUtils.isEmpty(enteredLastName)) {
        lastNameTextView.setError(getString(R.string.error_field_required));
        focusView = lastNameTextView;
        cancel = true;
    } else if (!validateFullName(enteredFirstName)) {
        firstNameLayout.setError(getString(R.string.error_invalid_full_name));
        focusView = firstNameTextView;
        cancel = true;
    } else if (!validateFullName(enteredLastName)) {
        lastNameLayout.setError(getString(R.string.error_invalid_full_name));
        focusView = lastNameTextView;
        cancel = true;
    } else if (TextUtils.isEmpty(enteredHomeTown)) {
        homeTownACView.setError(getString(R.string.error_field_required));
        focusView = homeTownACView;
        cancel = true;
    } else if (!hasSelectedHometown) {
        homeTownLayout.setError(getString(R.string.home_town_error));
        focusView = homeTownACView;
        cancel = true;
        homeTownACView.setText("");
    } else if (TextUtils.isEmpty(enteredPassport)) {
        passportLayout.setError(getString(R.string.error_field_required));
        focusView = passportEditText;
        cancel = true;
    } else if (dob == null || TextUtils.isEmpty(birthDayPickerView.getText().toString().trim())) {
        birthdayLayout.setError(getString(R.string.error_field_required));
        focusView = birthDayPickerView;
        cancel = true;
    } else if (dob != null && !TextUtils.isEmpty(birthDayPickerView.getText().toString().trim())) {
        if (dob.after(new Date())) {
            birthdayLayout.setError(getString(R.string.birthday_error));
            focusView = birthDayPickerView;
            cancel = true;
            birthDayPickerView.setText("");
            dob = null;
        }

        if (dob != null && dob.before(cal.getTime())) {
            birthdayLayout.setError(getString(R.string.birthday_error_old));
            focusView = birthDayPickerView;
            cancel = true;
            birthDayPickerView.setText("");
            dob = null;
        }
    }

    if (cancel) {
        if (focusView != null) {
            focusView.requestFocus();
        }
    }

    return cancel;
}

---

From source file:eu.kanade.tachiyomi.ui.reader.viewer.pager.vertical.VerticalViewPagerImpl.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this) {
        currentFocused = null;/*from   www. jav a  2s  .  co m*/
    } else if (currentFocused != null) {
        boolean isChild = false;
        for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                .getParent()) {
            if (parent == this) {
                isChild = true;
                break;
            }
        }
        if (!isChild) {
            // This would cause the focus search down below to fail in fun ways.
            final StringBuilder sb = new StringBuilder();
            sb.append(currentFocused.getClass().getSimpleName());
            for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent
                    .getParent()) {
                sb.append(" => ").append(parent.getClass().getSimpleName());
            }
            Log.e(TAG, "arrowScroll tried to find focus based on non-child " + "current focused view "
                    + sb.toString());
            currentFocused = null;
        }
    }

    boolean handled = false;

    View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction);
    if (nextFocused != null && nextFocused != currentFocused) {
        if (direction == View.FOCUS_UP) {
            // If there is nothing to the left, or this is causing us to
            // jump to the right, then what we really want to do is page left.
            final int nextTop = getChildRectInPagerCoordinates(mTempRect, nextFocused).top;
            final int currTop = getChildRectInPagerCoordinates(mTempRect, currentFocused).top;
            if (currentFocused != null && nextTop >= currTop) {
                handled = pageUp();
            } else {
                handled = nextFocused.requestFocus();
            }
        } else if (direction == View.FOCUS_DOWN) {
            // If there is nothing to the right, or this is causing us to
            // jump to the left, then what we really want to do is page right.
            final int nextDown = getChildRectInPagerCoordinates(mTempRect, nextFocused).bottom;
            final int currDown = getChildRectInPagerCoordinates(mTempRect, currentFocused).bottom;
            if (currentFocused != null && nextDown <= currDown) {
                handled = pageDown();
            } else {
                handled = nextFocused.requestFocus();
            }
        }
    } else if (direction == FOCUS_UP || direction == FOCUS_BACKWARD) {
        // Trying to move left and nothing there; try to page.
        handled = pageUp();
    } else if (direction == FOCUS_DOWN || direction == FOCUS_FORWARD) {
        // Trying to move right and nothing there; try to page.
        handled = pageDown();
    }
    if (handled) {
        playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
    }
    return handled;
}

---

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