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Android example source code file (EditableInputConnection.java)

This example Android source code file (EditableInputConnection.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

abstractmethoderror, android, baseinputconnection, bundle, charsequence, debug, editableinputconnection, extractedtext, get_extracted_text_monitor, input, inputmethod, keylistener, override, string, tag, text, textview, ui, view

The EditableInputConnection.java Android example source code

/*
 * Copyright (C) 2007-2008 The Android Open Source Project
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.android.internal.widget;

import android.os.Bundle;
import android.text.Editable;
import android.text.method.KeyListener;
import android.util.Log;
import android.view.inputmethod.BaseInputConnection;
import android.view.inputmethod.CompletionInfo;
import android.view.inputmethod.ExtractedText;
import android.view.inputmethod.ExtractedTextRequest;
import android.widget.TextView;

public class EditableInputConnection extends BaseInputConnection {
    private static final boolean DEBUG = false;
    private static final String TAG = "EditableInputConnection";

    private final TextView mTextView;

    public EditableInputConnection(TextView textview) {
        super(textview, true);
        mTextView = textview;
    }

    public Editable getEditable() {
        TextView tv = mTextView;
        if (tv != null) {
            return tv.getEditableText();
        }
        return null;
    }
    
    public boolean beginBatchEdit() {
        mTextView.beginBatchEdit();
        return true;
    }
    
    public boolean endBatchEdit() {
        mTextView.endBatchEdit();
        return true;
    }
    
    public boolean clearMetaKeyStates(int states) {
        final Editable content = getEditable();
        if (content == null) return false;
        KeyListener kl = mTextView.getKeyListener();
        if (kl != null) {
            try {
                kl.clearMetaKeyState(mTextView, content, states);
            } catch (AbstractMethodError e) {
                // This is an old listener that doesn't implement the
                // new method.
            }
        }
        return true;
    }
    
    public boolean commitCompletion(CompletionInfo text) {
        if (DEBUG) Log.v(TAG, "commitCompletion " + text);
        mTextView.beginBatchEdit();
        mTextView.onCommitCompletion(text);
        mTextView.endBatchEdit();
        return true;
    }

    public boolean performEditorAction(int actionCode) {
        if (DEBUG) Log.v(TAG, "performEditorAction " + actionCode);
        mTextView.onEditorAction(actionCode);
        return true;
    }
    
    public boolean performContextMenuAction(int id) {
        if (DEBUG) Log.v(TAG, "performContextMenuAction " + id);
        mTextView.beginBatchEdit();
        mTextView.onTextContextMenuItem(id);
        mTextView.endBatchEdit();
        return true;
    }
    
    public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) {
        if (mTextView != null) {
            ExtractedText et = new ExtractedText();
            if (mTextView.extractText(request, et)) {
                if ((flags&GET_EXTRACTED_TEXT_MONITOR) != 0) {
                    mTextView.setExtracting(request);
                }
                return et;
            }
        }
        return null;
    }
    
    public boolean performPrivateCommand(String action, Bundle data) {
        mTextView.onPrivateIMECommand(action, data);
        return true;
    }

    @Override
    public boolean commitText(CharSequence text, int newCursorPosition) {
        if (mTextView == null) {
            return super.commitText(text, newCursorPosition);
        }

        CharSequence errorBefore = mTextView.getError();
        boolean success = super.commitText(text, newCursorPosition);
        CharSequence errorAfter = mTextView.getError();

        if (errorAfter != null && errorBefore == errorAfter) {
            mTextView.setError(null, null);
        }

        return success;
    }
}

Other Android examples (source code examples)

Here is a short list of links related to this Android EditableInputConnection.java source code file:

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