/*
* 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 com.example.android.apis.view;
// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
/**
* Demonstrates making a view VISIBLE, INVISIBLE and GONE
*
*/
public class Visibility1 extends Activity {
private View mVictim;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.visibility_1);
// Find the view whose visibility will change
mVictim = findViewById(R.id.victim);
// Find our buttons
Button visibleButton = (Button) findViewById(R.id.vis);
Button invisibleButton = (Button) findViewById(R.id.invis);
Button goneButton = (Button) findViewById(R.id.gone);
// Wire each button to a click listener
visibleButton.setOnClickListener(mVisibleListener);
invisibleButton.setOnClickListener(mInvisibleListener);
goneButton.setOnClickListener(mGoneListener);
}
OnClickListener mVisibleListener = new OnClickListener() {
public void onClick(View v) {
mVictim.setVisibility(View.VISIBLE);
}
};
OnClickListener mInvisibleListener = new OnClickListener() {
public void onClick(View v) {
mVictim.setVisibility(View.INVISIBLE);
}
};
OnClickListener mGoneListener = new OnClickListener() {
public void onClick(View v) {
mVictim.setVisibility(View.GONE);
}
};
}
//layout/visibility_1.xml
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
android:orientation="vertical"
android:background="@drawable/box"
android:layout_width="match_parent"
android:layout_height="wrap_content">
android:background="@drawable/red"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/visibility_1_view_1"/>
android:background="@drawable/green"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/visibility_1_view_2"/>
android:background="@drawable/blue"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/visibility_1_view_3"/>
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/visibility_1_vis"/>
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/visibility_1_invis"/>
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/visibility_1_gone"/>