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Commit c1a11f17 authored by Jean Chalard's avatar Jean Chalard
Browse files

Improve documentation for InputType and EditorInfo.

Bug: 11245912
Change-Id: Ie92ba20079461f7f0e30d969ba3692fec3a3b97f
parent e8d0fbf2
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+59 −21
Original line number Original line Diff line number Diff line
@@ -46,9 +46,9 @@ public interface InputType {
     * of text being given.  Currently supported classes are:
     * of text being given.  Currently supported classes are:
     * {@link #TYPE_CLASS_TEXT}, {@link #TYPE_CLASS_NUMBER},
     * {@link #TYPE_CLASS_TEXT}, {@link #TYPE_CLASS_NUMBER},
     * {@link #TYPE_CLASS_PHONE}, {@link #TYPE_CLASS_DATETIME}.
     * {@link #TYPE_CLASS_PHONE}, {@link #TYPE_CLASS_DATETIME}.
     * If the class is not one you
     * <p>IME authors: If the class is not one you
     * understand, assume {@link #TYPE_CLASS_TEXT} with NO variation
     * understand, assume {@link #TYPE_CLASS_TEXT} with NO variation
     * or flags.
     * or flags.<p>
     */
     */
    public static final int TYPE_MASK_CLASS = 0x0000000f;
    public static final int TYPE_MASK_CLASS = 0x0000000f;
    
    
@@ -69,7 +69,10 @@ public interface InputType {
     * This should be interpreted to mean that the target input connection
     * This should be interpreted to mean that the target input connection
     * is not rich, it can not process and show things like candidate text nor
     * is not rich, it can not process and show things like candidate text nor
     * retrieve the current text, so the input method will need to run in a
     * retrieve the current text, so the input method will need to run in a
     * limited "generate key events" mode.
     * limited "generate key events" mode, if it supports it. Note that some
     * input methods may not support it, for example a voice-based input
     * method will likely not be able to generate key events even if this
     * flag is set.
     */
     */
    public static final int TYPE_NULL = 0x00000000;
    public static final int TYPE_NULL = 0x00000000;
    
    
@@ -94,48 +97,70 @@ public interface InputType {
     * Flag for {@link #TYPE_CLASS_TEXT}: capitalize all characters.  Overrides
     * Flag for {@link #TYPE_CLASS_TEXT}: capitalize all characters.  Overrides
     * {@link #TYPE_TEXT_FLAG_CAP_WORDS} and
     * {@link #TYPE_TEXT_FLAG_CAP_WORDS} and
     * {@link #TYPE_TEXT_FLAG_CAP_SENTENCES}.  This value is explicitly defined
     * {@link #TYPE_TEXT_FLAG_CAP_SENTENCES}.  This value is explicitly defined
     * to be the same as {@link TextUtils#CAP_MODE_CHARACTERS}.
     * to be the same as {@link TextUtils#CAP_MODE_CHARACTERS}. Of course,
     * this only affects languages where there are upper-case and lower-case letters.
     */
     */
    public static final int TYPE_TEXT_FLAG_CAP_CHARACTERS = 0x00001000;
    public static final int TYPE_TEXT_FLAG_CAP_CHARACTERS = 0x00001000;
    
    
    /**
    /**
     * Flag for {@link #TYPE_CLASS_TEXT}: capitalize first character of
     * Flag for {@link #TYPE_CLASS_TEXT}: capitalize the first character of
     * all words.  Overrides {@link #TYPE_TEXT_FLAG_CAP_SENTENCES}.  This
     * every word.  Overrides {@link #TYPE_TEXT_FLAG_CAP_SENTENCES}.  This
     * value is explicitly defined
     * value is explicitly defined
     * to be the same as {@link TextUtils#CAP_MODE_WORDS}.
     * to be the same as {@link TextUtils#CAP_MODE_WORDS}. Of course,
     * this only affects languages where there are upper-case and lower-case letters.
     */
     */
    public static final int TYPE_TEXT_FLAG_CAP_WORDS = 0x00002000;
    public static final int TYPE_TEXT_FLAG_CAP_WORDS = 0x00002000;
    
    
    /**
    /**
     * Flag for {@link #TYPE_CLASS_TEXT}: capitalize first character of
     * Flag for {@link #TYPE_CLASS_TEXT}: capitalize the first character of
     * each sentence.  This value is explicitly defined
     * each sentence.  This value is explicitly defined
     * to be the same as {@link TextUtils#CAP_MODE_SENTENCES}.
     * to be the same as {@link TextUtils#CAP_MODE_SENTENCES}. For example
     * in English it means to capitalize after a period and a space (note that other
     * languages may have different characters for period, or not use spaces,
     * or use different grammatical rules). Of course,
     * this only affects languages where there are upper-case and lower-case letters.
     */
     */
    public static final int TYPE_TEXT_FLAG_CAP_SENTENCES = 0x00004000;
    public static final int TYPE_TEXT_FLAG_CAP_SENTENCES = 0x00004000;
    
    
    /**
    /**
     * Flag for {@link #TYPE_CLASS_TEXT}: the user is entering free-form
     * Flag for {@link #TYPE_CLASS_TEXT}: the user is entering free-form
     * text that should have auto-correction applied to it.
     * text that should have auto-correction applied to it. Without this flag,
     * the IME will not try to correct typos. You should always set this flag
     * unless you really expect users to type non-words in this field, for
     * example to choose a name for a character in a game.
     * Contrast this with {@link TYPE_TEXT_FLAG_AUTO_COMPLETE} and
     * {@link TYPE_TEXT_FLAG_NO_SUGGESTIONS}:
     * {@code TYPE_TEXT_FLAG_AUTO_CORRECT} means that the IME will try to
     * auto-correct typos as the user is typing, but does not define whether
     * the IME offers an interface to show suggestions.
     */
     */
    public static final int TYPE_TEXT_FLAG_AUTO_CORRECT = 0x00008000;
    public static final int TYPE_TEXT_FLAG_AUTO_CORRECT = 0x00008000;
    
    
    /**
    /**
     * Flag for {@link #TYPE_CLASS_TEXT}: the text editor is performing
     * Flag for {@link #TYPE_CLASS_TEXT}: the text editor (which means
     * auto-completion of the text being entered based on its own semantics,
     * the application) is performing auto-completion of the text being entered
     * which it will present to the user as they type.  This generally means
     * based on its own semantics, which it will present to the user as they type.
     * that the input method should not be showing candidates itself, but can
     * This generally means that the input method should not be showing
     * expect for the editor to supply its own completions/candidates from
     * candidates itself, but can expect the editor to supply its own
     * completions/candidates from
     * {@link android.view.inputmethod.InputMethodSession#displayCompletions
     * {@link android.view.inputmethod.InputMethodSession#displayCompletions
     * InputMethodSession.displayCompletions()} as a result of the editor calling
     * InputMethodSession.displayCompletions()} as a result of the editor calling
     * {@link android.view.inputmethod.InputMethodManager#displayCompletions
     * {@link android.view.inputmethod.InputMethodManager#displayCompletions
     * InputMethodManager.displayCompletions()}.
     * InputMethodManager.displayCompletions()}.
     * Note the contrast with {@link TYPE_TEXT_FLAG_AUTO_CORRECT} and
     * {@link TYPE_TEXT_FLAG_NO_SUGGESTIONS}:
     * {@link TYPE_TEXT_FLAG_AUTO_COMPLETE} means the editor should show an
     * interface for displaying suggestions, but instead of supplying its own
     * it will rely on the Editor to pass completions/corrections.
     */
     */
    public static final int TYPE_TEXT_FLAG_AUTO_COMPLETE = 0x00010000;
    public static final int TYPE_TEXT_FLAG_AUTO_COMPLETE = 0x00010000;
    
    
    /**
    /**
     * Flag for {@link #TYPE_CLASS_TEXT}: multiple lines of text can be
     * Flag for {@link #TYPE_CLASS_TEXT}: multiple lines of text can be
     * entered into the field.  If this flag is not set, the text field 
     * entered into the field.  If this flag is not set, the text field 
     * will be constrained to a single line.
     * will be constrained to a single line. The IME may also choose not to
     * display an enter key when this flag is not set, as there should be no
     * need to create new lines.
     */
     */
    public static final int TYPE_TEXT_FLAG_MULTI_LINE = 0x00020000;
    public static final int TYPE_TEXT_FLAG_MULTI_LINE = 0x00020000;
    
    
@@ -152,6 +177,16 @@ public interface InputType {
     * do not contain words from the language and do not benefit from any
     * do not contain words from the language and do not benefit from any
     * dictionary-based completions or corrections. It overrides the
     * dictionary-based completions or corrections. It overrides the
     * {@link #TYPE_TEXT_FLAG_AUTO_CORRECT} value when set.
     * {@link #TYPE_TEXT_FLAG_AUTO_CORRECT} value when set.
     * Please avoid using this unless you are certain this is what you want.
     * Many input methods need suggestions to work well, for example the ones
     * based on gesture typing. Consider clearing
     * {@link TYPE_TEXT_FLAG_AUTO_CORRECT} instead if you just do not
     * want the IME to correct typos.
     * Note the contrast with {@link TYPE_TEXT_FLAG_AUTO_CORRECT} and
     * {@link TYPE_TEXT_FLAG_AUTO_COMPLETE}:
     * {@code TYPE_TEXT_FLAG_NO_SUGGESTIONS} means the IME should never
     * show an interface to display suggestions. Most IMEs will also take this to
     * mean they should not try to auto-correct what the user is typing.
     */
     */
    public static final int TYPE_TEXT_FLAG_NO_SUGGESTIONS = 0x00080000;
    public static final int TYPE_TEXT_FLAG_NO_SUGGESTIONS = 0x00080000;


@@ -224,7 +259,9 @@ public interface InputType {
    
    
    /**
    /**
     * Variation of {@link #TYPE_CLASS_TEXT}: entering text for phonetic
     * Variation of {@link #TYPE_CLASS_TEXT}: entering text for phonetic
     * pronunciation, such as a phonetic name field in contacts.
     * pronunciation, such as a phonetic name field in contacts. This is mostly
     * useful for languages where one spelling may have several phonetic
     * readings, like Japanese.
     */
     */
    public static final int TYPE_TEXT_VARIATION_PHONETIC = 0x000000c0;
    public static final int TYPE_TEXT_VARIATION_PHONETIC = 0x000000c0;
    
    
@@ -255,12 +292,13 @@ public interface InputType {
    // ----------------------------------------------------------------------
    // ----------------------------------------------------------------------
    
    
    /**
    /**
     * Class for numeric text.  This class supports the following flag:
     * Class for numeric text.  This class supports the following flags:
     * {@link #TYPE_NUMBER_FLAG_SIGNED} and
     * {@link #TYPE_NUMBER_FLAG_SIGNED} and
     * {@link #TYPE_NUMBER_FLAG_DECIMAL}.  It also supports the following
     * {@link #TYPE_NUMBER_FLAG_DECIMAL}.  It also supports the following
     * variations: {@link #TYPE_NUMBER_VARIATION_NORMAL} and
     * variations: {@link #TYPE_NUMBER_VARIATION_NORMAL} and
     * {@link #TYPE_NUMBER_VARIATION_PASSWORD}.  If you do not recognize
     * {@link #TYPE_NUMBER_VARIATION_PASSWORD}.
     * the variation, normal should be assumed.
     * <p>IME authors: If you do not recognize
     * the variation, normal should be assumed.</p>
     */
     */
    public static final int TYPE_CLASS_NUMBER = 0x00000002;
    public static final int TYPE_CLASS_NUMBER = 0x00000002;
    
    
@@ -318,7 +356,7 @@ public interface InputType {
     * following variations:
     * following variations:
     * {@link #TYPE_DATETIME_VARIATION_NORMAL}
     * {@link #TYPE_DATETIME_VARIATION_NORMAL}
     * {@link #TYPE_DATETIME_VARIATION_DATE}, and
     * {@link #TYPE_DATETIME_VARIATION_DATE}, and
     * {@link #TYPE_DATETIME_VARIATION_TIME},.
     * {@link #TYPE_DATETIME_VARIATION_TIME}.
     */
     */
    public static final int TYPE_CLASS_DATETIME = 0x00000004;
    public static final int TYPE_CLASS_DATETIME = 0x00000004;
    
    
+65 −41
Original line number Original line Diff line number Diff line
@@ -70,14 +70,14 @@ public class EditorInfo implements InputType, Parcelable {
    /**
    /**
     * Bits of {@link #IME_MASK_ACTION}: the action key performs a "search"
     * Bits of {@link #IME_MASK_ACTION}: the action key performs a "search"
     * operation, taking the user to the results of searching for the text
     * operation, taking the user to the results of searching for the text
     * the have typed (in whatever context is appropriate).
     * they have typed (in whatever context is appropriate).
     */
     */
    public static final int IME_ACTION_SEARCH = 0x00000003;
    public static final int IME_ACTION_SEARCH = 0x00000003;
    
    
    /**
    /**
     * Bits of {@link #IME_MASK_ACTION}: the action key performs a "send"
     * Bits of {@link #IME_MASK_ACTION}: the action key performs a "send"
     * operation, delivering the text to its target.  This is typically used
     * operation, delivering the text to its target.  This is typically used
     * when composing a message.
     * when composing a message in IM or SMS where sending is immediate.
     */
     */
    public static final int IME_ACTION_SEND = 0x00000004;
    public static final int IME_ACTION_SEND = 0x00000004;
    
    
@@ -89,22 +89,31 @@ public class EditorInfo implements InputType, Parcelable {
    
    
    /**
    /**
     * Bits of {@link #IME_MASK_ACTION}: the action key performs a "done"
     * Bits of {@link #IME_MASK_ACTION}: the action key performs a "done"
     * operation, typically meaning the IME will be closed.
     * operation, typically meaning there is nothing more to input and the
     * IME will be closed.
     */
     */
    public static final int IME_ACTION_DONE = 0x00000006;
    public static final int IME_ACTION_DONE = 0x00000006;
    
    
    /**
    /**
     * Bits of {@link #IME_MASK_ACTION}: Like {@link #IME_ACTION_NEXT}, but
     * Bits of {@link #IME_MASK_ACTION}: Like {@link #IME_ACTION_NEXT}, but
     * for moving to the previous field.  This will normally not be used to
     * for moving to the previous field.  This will normally not be used to
     * specify an action (since it precludes {@link #IME_ACTION_NEXT}, but
     * specify an action (since it precludes {@link #IME_ACTION_NEXT}), but
     * can be returned to the app if it sets {@link #IME_FLAG_NAVIGATE_PREVIOUS}.
     * can be returned to the app if it sets {@link #IME_FLAG_NAVIGATE_PREVIOUS}.
     */
     */
    public static final int IME_ACTION_PREVIOUS = 0x00000007;
    public static final int IME_ACTION_PREVIOUS = 0x00000007;


    /**
    /**
     * Flag of {@link #imeOptions}: used to request that the IME never go
     * Flag of {@link #imeOptions}: used to request that the IME never go
     * into fullscreen mode.  Applications need to be aware that the flag is not
     * into fullscreen mode.
     * a guarantee, and not all IMEs will respect it.
     * By default, IMEs may go into full screen mode when they think
     * it's appropriate, for example on small screens in landscape
     * orientation where displaying a software keyboard may occlude
     * such a large portion of the screen that the remaining part is
     * too small to meaningfully display the application UI.
     * If this flag is set, compliant IMEs will never go into full screen mode,
     * and always leave some space to display the application UI.
     * Applications need to be aware that the flag is not a guarantee, and
     * some IMEs may ignore it.
     */
     */
    public static final int IME_FLAG_NO_FULLSCREEN = 0x2000000;
    public static final int IME_FLAG_NO_FULLSCREEN = 0x2000000;


@@ -136,50 +145,56 @@ public class EditorInfo implements InputType, Parcelable {
     * Flag of {@link #imeOptions}: used to specify that the IME does not need
     * Flag of {@link #imeOptions}: used to specify that the IME does not need
     * to show its extracted text UI.  For input methods that may be fullscreen,
     * to show its extracted text UI.  For input methods that may be fullscreen,
     * often when in landscape mode, this allows them to be smaller and let part
     * often when in landscape mode, this allows them to be smaller and let part
     * of the application be shown behind.  Though there will likely be limited
     * of the application be shown behind, through transparent UI parts in the
     * access to the application available from the user, it can make the
     * fullscreen IME. The part of the UI visible to the user may not be responsive
     * experience of a (mostly) fullscreen IME less jarring.  Note that when
     * to touch because the IME will receive touch events, which may confuse the
     * this flag is specified the IME may <em>not</em> be set up to be able
     * user; use {@link IME_FLAG_NO_FULLSCREEN} instead for a better experience.
     * to display text, so it should only be used in situations where this is
     * Using this flag is discouraged and it may become deprecated in the future.
     * not needed.
     * Its meaning is unclear in some situations and it may not work appropriately
     * on older versions of the platform.
     */
     */
    public static final int IME_FLAG_NO_EXTRACT_UI = 0x10000000;
    public static final int IME_FLAG_NO_EXTRACT_UI = 0x10000000;
    
    
    /**
    /**
     * Flag of {@link #imeOptions}: used in conjunction with
     * Flag of {@link #imeOptions}: used in conjunction with one of the actions
     * {@link #IME_MASK_ACTION}, this indicates that the action should not
     * masked by {@link #IME_MASK_ACTION}, this indicates that the action
     * be available as an accessory button when the input method is full-screen.
     * should not be available as an accessory button on the right of the extracted
     * Note that by setting this flag, there can be cases where the action
     * text when the input method is full-screen. Note that by setting this flag,
     * is simply never available to the user.  Setting this generally means
     * there can be cases where the action is simply never available to the
     * that you think showing text being edited is more important than the
     * user. Setting this generally means that you think that in fullscreen mode,
     * action you have supplied. 
     * where there is little space to show the text, it's not worth taking some
     * screen real estate to display the action and it should be used instead
     * to show more text.
     */
     */
    public static final int IME_FLAG_NO_ACCESSORY_ACTION = 0x20000000;
    public static final int IME_FLAG_NO_ACCESSORY_ACTION = 0x20000000;
    
    
    /**
    /**
     * Flag of {@link #imeOptions}: used in conjunction with
     * Flag of {@link #imeOptions}: used in conjunction with one of the actions
     * {@link #IME_MASK_ACTION}, this indicates that the action should not
     * masked by {@link #IME_MASK_ACTION}. If this flag is not set, IMEs will
     * be available in-line as a replacement for "enter" key.  Typically this is
     * normally replace the "enter" key with the action supplied. This flag
     * because the action has such a significant impact or is not recoverable
     * indicates that the action should not be available in-line as a replacement
     * enough that accidentally hitting it should be avoided, such as sending
     * for the "enter" key. Typically this is because the action has such a
     * a message.  Note that {@link android.widget.TextView} will automatically set this
     * significant impact or is not recoverable enough that accidentally hitting
     * flag for you on multi-line text views.
     * it should be avoided, such as sending a message. Note that
     * {@link android.widget.TextView} will automatically set this flag for you
     * on multi-line text views.
     */
     */
    public static final int IME_FLAG_NO_ENTER_ACTION = 0x40000000;
    public static final int IME_FLAG_NO_ENTER_ACTION = 0x40000000;


    /**
    /**
     * Flag of {@link #imeOptions}: used to request that the IME is capable of
     * Flag of {@link #imeOptions}: used to request an IME that is capable of
     * inputting ASCII characters.  The intention of this flag is to ensure that
     * inputting ASCII characters.  The intention of this flag is to ensure that
     * the user can type Roman alphabet characters in a {@link android.widget.TextView}
     * the user can type Roman alphabet characters in a {@link android.widget.TextView}.
     * used for, typically, account ID or password input.  It is expected that IMEs
     * It is typically used for an account ID or password input. A lot of the time,
     * normally are able to input ASCII even without being told so (such IMEs
     * IMEs are already able to input ASCII even without being told so (such IMEs
     * already respect this flag in a sense), but there could be some cases they
     * already respect this flag in a sense), but there are cases when this is not
     * aren't when, for instance, only non-ASCII input languagaes like Arabic,
     * the default. For instance, users of languages using a different script like
     * Greek, Hebrew, Russian are enabled in the IME.  Applications need to be
     * Arabic, Greek, Hebrew or Russian typically have a keyboard that can't
     * aware that the flag is not a guarantee, and not all IMEs will respect it.
     * input ASCII characters by default. Applications need to be
     * aware that the flag is not a guarantee, and some IMEs may not respect it.
     * However, it is strongly recommended for IME authors to respect this flag
     * However, it is strongly recommended for IME authors to respect this flag
     * especially when their IME could end up with a state that has only non-ASCII
     * especially when their IME could end up with a state where only languages
     * input languages enabled.
     * using non-ASCII are enabled.
     */
     */
    public static final int IME_FLAG_FORCE_ASCII = 0x80000000;
    public static final int IME_FLAG_FORCE_ASCII = 0x80000000;


@@ -209,8 +224,13 @@ public class EditorInfo implements InputType, Parcelable {
    
    
    /**
    /**
     * In some cases an IME may be able to display an arbitrary label for
     * In some cases an IME may be able to display an arbitrary label for
     * a command the user can perform, which you can specify here.  You can
     * a command the user can perform, which you can specify here. This is
     * not count on this being used.
     * typically used as the label for the action to use in-line as a replacement
     * for the "enter" key (see {@link #actionId}). Remember the key where
     * this will be displayed is typically very small, and there are significant
     * localization challenges to make this fit in all supported languages. Also
     * you can not count absolutely on this being used, as some IMEs may
     * ignore this.
     */
     */
    public CharSequence actionLabel = null;
    public CharSequence actionLabel = null;
    
    
@@ -224,13 +244,17 @@ public class EditorInfo implements InputType, Parcelable {
    
    
    /**
    /**
     * The text offset of the start of the selection at the time editing
     * The text offset of the start of the selection at the time editing
     * began; -1 if not known.
     * began; -1 if not known. Keep in mind some IMEs may not be able
     * to give their full feature set without knowing the cursor position;
     * avoid passing -1 here if you can.
     */
     */
    public int initialSelStart = -1;
    public int initialSelStart = -1;
    
    
    /**
    /**
     * The text offset of the end of the selection at the time editing
     * The text offset of the end of the selection at the time editing
     * began; -1 if not known.
     * began; -1 if not known. Keep in mind some IMEs may not be able
     * to give their full feature set without knowing the cursor position;
     * avoid passing -1 here if you can.
     */
     */
    public int initialSelEnd = -1;
    public int initialSelEnd = -1;
    
    
@@ -280,7 +304,7 @@ public class EditorInfo implements InputType, Parcelable {
     * Any extra data to supply to the input method.  This is for extended
     * Any extra data to supply to the input method.  This is for extended
     * communication with specific input methods; the name fields in the
     * communication with specific input methods; the name fields in the
     * bundle should be scoped (such as "com.mydomain.im.SOME_FIELD") so
     * bundle should be scoped (such as "com.mydomain.im.SOME_FIELD") so
     * that they don't conflict with others.  This field is can be
     * that they don't conflict with others.  This field can be
     * filled in from the {@link android.R.attr#editorExtras}
     * filled in from the {@link android.R.attr#editorExtras}
     * attribute of a TextView.
     * attribute of a TextView.
     */
     */
+10 −2
Original line number Original line Diff line number Diff line
@@ -142,7 +142,11 @@ public interface InputConnection {
     * conditions in implementing this call. An IME can make a change
     * conditions in implementing this call. An IME can make a change
     * to the text and use this method right away; you need to make
     * to the text and use this method right away; you need to make
     * sure the returned value is consistent with the result of the
     * sure the returned value is consistent with the result of the
     * latest edits.
     * latest edits. Also, you may return less than n characters if performance
     * dictates so, but keep in mind IMEs are relying on this for many
     * functions: you should not, for example, limit the returned value to
     * the current line, and specifically do not return 0 characters unless
     * the cursor is really at the start of the text.</p>
     *
     *
     * @param n The expected length of the text.
     * @param n The expected length of the text.
     * @param flags Supplies additional options controlling how the text is
     * @param flags Supplies additional options controlling how the text is
@@ -176,7 +180,11 @@ public interface InputConnection {
     * conditions in implementing this call. An IME can make a change
     * conditions in implementing this call. An IME can make a change
     * to the text and use this method right away; you need to make
     * to the text and use this method right away; you need to make
     * sure the returned value is consistent with the result of the
     * sure the returned value is consistent with the result of the
     * latest edits.</p>
     * latest edits. Also, you may return less than n characters if performance
     * dictates so, but keep in mind IMEs are relying on this for many
     * functions: you should not, for example, limit the returned value to
     * the current line, and specifically do not return 0 characters unless
     * the cursor is really at the end of the text.</p>
     *
     *
     * @param n The expected length of the text.
     * @param n The expected length of the text.
     * @param flags Supplies additional options controlling how the text is
     * @param flags Supplies additional options controlling how the text is