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Android example source code file (GoneParentFocusedChild.java)

This example Android source code file (GoneParentFocusedChild.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

activity, android, app, button, goneparentfocusedchild, keyevent, linearlayout, os, ui, view, widget

The GoneParentFocusedChild.java Android example source code

/*
 * Copyright (C) 2007 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 android.widget.focus;

import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;

/**
 * An activity that helps test the scenario where a parent is
 * GONE and one of its children has focus; the activity should get
 * the key event.  see bug 945150. 
 */
public class GoneParentFocusedChild extends Activity {
    private LinearLayout mGoneGroup;
    private Button mButton;

    private boolean mUnhandledKeyEvent = false;
    private LinearLayout mLayout;

    public boolean isUnhandledKeyEvent() {
        return mUnhandledKeyEvent;
    }

    public LinearLayout getLayout() {
        return mLayout;
    }

    public LinearLayout getGoneGroup() {
        return mGoneGroup;
    }

    public Button getButton() {
        return mButton;
    }

    protected void onCreate(Bundle icicle) {
        super.onCreate(icicle);

        mLayout = new LinearLayout(this);
        mLayout.setOrientation(LinearLayout.HORIZONTAL);
        mLayout.setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));


        mGoneGroup = new LinearLayout(this);
        mGoneGroup.setOrientation(LinearLayout.HORIZONTAL);
        mGoneGroup.setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));

        mButton = new Button(this);
        mButton.setLayoutParams(new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT));


        mGoneGroup.addView(mButton);
        setContentView(mLayout);

        mGoneGroup.setVisibility(View.GONE);
        mButton.requestFocus();
    }

    public boolean onKeyUp(int keyCode, KeyEvent event) {
        mUnhandledKeyEvent = true;
        return true;
    }
}

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