介绍在在title bar上显示indeterminate progress
/* * 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; import com.example.android.apis.R; import android.app.Activity; import android.os.Bundle; import android.view.Window; import android.view.View; import android.widget.Button; /** * Demonstrates how to use an indeterminate progress indicator in the window's title bar. */ public class ProgressBar4 extends Activity { private boolean mToggleIndeterminate = false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Request progress bar requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); setContentView(R.layout.progressbar_4); setProgressBarIndeterminateVisibility(mToggleIndeterminate); Button button = (Button) findViewById(R.id.toggle); button.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { mToggleIndeterminate = !mToggleIndeterminate; setProgressBarIndeterminateVisibility(mToggleIndeterminate); } }); } }
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时间: 2024-11-08 21:13:06