inputType属性的作用在于给输入法足够的上下文
Properly set the {@link android.R.attr#inputType} in your editable
text views, so that the input method will have enough context to help the
user in entering text into them.
android.widget.TextView.java
public TextView(
Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
if (mEditor != null) {
//实际是mEditor
mEditor.adjustInputType(password, passwordInputType, webPasswordInputType,
numberPasswordInputType);
}
}
android.widget.Editor.java
Helper class used by TextView to handle editable text views.
InputContentType mInputContentType;
静态内部类
static class InputContentType {
int imeOptions = EditorInfo.IME_NULL;
String privateImeOptions;
CharSequence imeActionLabel;
int imeActionId;
Bundle extras;
OnEditorActionListener onEditorActionListener;
boolean enterDown;
LocaleList imeHintLocales;
}
android.view.inputmethod.EditorInfo.java
public class EditorInfo implements InputType, Parcelable {
/**
* The content type of the text box, whose bits are defined by
* {@link InputType}.
*
* @see InputType
* @see #TYPE_MASK_CLASS
* @see #TYPE_MASK_VARIATION
* @see #TYPE_MASK_FLAGS
*/
public int inputType = TYPE_NULL;
}
android.text.InputType.java
/**
- Masks for {@link inputType}
- <pre>
- |-------|-------|-------|-------|
1111 TYPE_MASK_CLASS
11111111 TYPE_MASK_VARIATION
111111111111 TYPE_MASK_FLAGS
- |-------|-------|-------|-------|
TYPE_NULL
- |-------|-------|-------|-------|
1 TYPE_CLASS_TEXT
1 TYPE_TEXT_VARIATION_URI
1 TYPE_TEXT_VARIATION_EMAIL_ADDRESS
11 TYPE_TEXT_VARIATION_EMAIL_SUBJECT
1 TYPE_TEXT_VARIATION_SHORT_MESSAGE
1 1 TYPE_TEXT_VARIATION_LONG_MESSAGE
11 TYPE_TEXT_VARIATION_PERSON_NAME
111 TYPE_TEXT_VARIATION_POSTAL_ADDRESS
1 TYPE_TEXT_VARIATION_PASSWORD
1 1 TYPE_TEXT_VARIATION_VISIBLE_PASSWORD
1 1 TYPE_TEXT_VARIATION_WEB_EDIT_TEXT
1 11 TYPE_TEXT_VARIATION_FILTER
11 TYPE_TEXT_VARIATION_PHONETIC
11 1 TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS
111 TYPE_TEXT_VARIATION_WEB_PASSWORD
1 TYPE_TEXT_FLAG_CAP_CHARACTERS
1 TYPE_TEXT_FLAG_CAP_WORDS
1 TYPE_TEXT_FLAG_CAP_SENTENCES
1 TYPE_TEXT_FLAG_AUTO_CORRECT
1 TYPE_TEXT_FLAG_AUTO_COMPLETE
1 TYPE_TEXT_FLAG_MULTI_LINE
1 TYPE_TEXT_FLAG_IME_MULTI_LINE
1 TYPE_TEXT_FLAG_NO_SUGGESTIONS
- |-------|-------|-------|-------|
1 TYPE_CLASS_NUMBER
1 TYPE_NUMBER_VARIATION_PASSWORD
1 TYPE_NUMBER_FLAG_SIGNED
1 TYPE_NUMBER_FLAG_DECIMAL
- |-------|-------|-------|-------|
11 TYPE_CLASS_PHONE
- |-------|-------|-------|-------|
1 TYPE_CLASS_DATETIME
1 TYPE_DATETIME_VARIATION_DATE
1 TYPE_DATETIME_VARIATION_TIME
- |-------|-------|-------|-------|</pre>
*/
/**
- Mask of bits that determine the overall class
- of text being given. Currently supported classes are:
- {@link #TYPE_CLASS_TEXT}, {@link #TYPE_CLASS_NUMBER},
- {@link #TYPE_CLASS_PHONE}, {@link #TYPE_CLASS_DATETIME}.
- <p>IME authors: If the class is not one you
- understand, assume {@link #TYPE_CLASS_TEXT} with NO variation
- or flags.<p>
*/
public static final int TYPE_MASK_CLASS = 0x0000000f;
/**
- Mask of bits that determine the variation of
- the base content class.
*/
public static final int TYPE_MASK_VARIATION = 0x00000ff0;
/**
- Mask of bits that provide addition bit flags
- of options.
*/
public static final int TYPE_MASK_FLAGS = 0x00fff000;
android.inputmethodservice.InputMethodService.java
/**
- {@inheritDoc}
*/
@MainThread
@Override
public void startInput(InputConnection ic, EditorInfo attribute) {
if (DEBUG) Log.v(TAG, "startInput(): editor=" + attribute);
doStartInput(ic, attribute, false);
}
/**
- {@inheritDoc}
*/
@MainThread
@Override
public void restartInput(InputConnection ic, EditorInfo attribute) {
if (DEBUG) Log.v(TAG, "restartInput(): editor=" + attribute);
doStartInput(ic, attribute, true);
}
void doStartInput(InputConnection ic, EditorInfo attribute, boolean restarting) {
if (!restarting) {
doFinishInput();
}
mInputStarted = true;
mStartedInputConnection = ic;
mInputEditorInfo = attribute;
initialize();
if (DEBUG) Log.v(TAG, "CALL: onStartInput");
onStartInput(attribute, restarting);
if (mWindowVisible) {
if (mShowInputRequested) {
if (DEBUG) Log.v(TAG, "CALL: onStartInputView");
mInputViewStarted = true;
onStartInputView(mInputEditorInfo, restarting);
startExtractingText(true);
} else if (mCandidatesVisibility == View.VISIBLE) {
if (DEBUG) Log.v(TAG, "CALL: onStartCandidatesView");
mCandidatesViewStarted = true;
onStartCandidatesView(mInputEditorInfo, restarting);
}
}
}
/**
- Called to inform the input method that text input has started in an
- editor. You should use this callback to initialize the state of your
- input to match the state of the editor given to it.
- @param attribute The attributes of the editor that input is starting
- in.
- @param restarting Set to true if input is restarting in the same
- editor such as because the application has changed the text in
- the editor. Otherwise will be false, indicating this is a new
- session with the editor.
*/
public void onStartInput(EditorInfo attribute, boolean restarting) {
// Intentionally empty
}
到onStartInput这里,输入法就可以从EditorInfo拿到inputType的值了
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