1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.view; 18 19 import android.app.Activity; 20 import android.os.Bundle; 21 import android.widget.Button; 22 23 import com.android.frameworks.coretests.R; 24 25 /** 26 * Exercise View's ability to change their visibility: GONE, INVISIBLE and 27 * VISIBLE. 28 */ 29 public class Visibility extends Activity { 30 @Override onCreate(Bundle icicle)31 protected void onCreate(Bundle icicle) { 32 super.onCreate(icicle); 33 setContentView(R.layout.visibility); 34 35 // Find the view whose visibility will change 36 mVictim = findViewById(R.id.victim); 37 38 // Find our buttons 39 Button visibleButton = findViewById(R.id.vis); 40 Button invisibleButton = findViewById(R.id.invis); 41 Button goneButton = findViewById(R.id.gone); 42 43 // Wire each button to a click listener 44 visibleButton.setOnClickListener(mVisibleListener); 45 invisibleButton.setOnClickListener(mInvisibleListener); 46 goneButton.setOnClickListener(mGoneListener); 47 } 48 49 50 View.OnClickListener mVisibleListener = new View.OnClickListener() { 51 public void onClick(View v) { 52 mVictim.setVisibility(View.VISIBLE); 53 } 54 }; 55 56 View.OnClickListener mInvisibleListener = new View.OnClickListener() { 57 public void onClick(View v) { 58 mVictim.setVisibility(View.INVISIBLE); 59 } 60 }; 61 62 View.OnClickListener mGoneListener = new View.OnClickListener() { 63 public void onClick(View v) { 64 mVictim.setVisibility(View.GONE); 65 } 66 }; 67 68 private View mVictim; 69 } 70