MainActivity.java
package com.imooc.android_PRogressbar;import android.app.Activity;import android.app.ActionBar;import android.app.Fragment;import android.app.ProgressDialog;import android.content.DialogInterface;import android.os.Bundle;import android.view.LayoutInflater;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.view.Window;import android.widget.Button;import android.widget.ProgressBar;import android.widget.TextView;import android.widget.Toast;import android.os.Build;public class MainActivity extends Activity implements OnClickListener { private ProgressBar progress; private Button add; private Button reduce; private Button reset; private TextView text; private ProgressDialog prodialog; private Button show; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 啟用窗口特征，啟用帶進度和不帶進度的進度條 requestWindowFeature(Window.FEATURE_PROGRESS); requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); setContentView(R.layout.main); // 顯示兩種進度條 setProgressBarVisibility(true); setProgressBarIndeterminateVisibility(false); // Max=10000 setProgress(9999); init(); } private void init() { // TODO Auto-generated method stub progress = (ProgressBar) findViewById(R.id.horiz); add = (Button) findViewById(R.id.add); reduce = (Button) findViewById(R.id.reduce); reset = (Button) findViewById(R.id.reset); text = (TextView) findViewById(R.id.text); show=(Button) findViewById(R.id.show); show.setOnClickListener(this); // 獲取第一進度條的進度 int first = progress.getProgress(); // 獲取第二進度條的進度 int second = progress.getSecondaryProgress(); // 獲取進度條的最大進度 int max = progress.getMax(); text.setText("第一進度百分比：" + (int) (first / (float) max * 100) + "% 第二進度百分比：" + (int) (second / (float) max * 100) + "%"); add.setOnClickListener(this); reduce.setOnClickListener(this); reset.setOnClickListener(this); } @Override public void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.add: { // 增加第一進度和第二進度10個刻度 progress.incrementProgressBy(10); progress.incrementSecondaryProgressBy(10); break; } case R.id.reduce: { // 減少第一進度和第二進度10個刻度 progress.incrementProgressBy(-10); progress.incrementSecondaryProgressBy(-10); break; } case R.id.reset: { progress.setProgress(50); progress.setSecondaryProgress(80); break; } case R.id.show: { /** * 頁面顯示風格 */ //新建ProgressDialog對象 prodialog=new ProgressDialog(MainActivity.this); //設置顯示風格 prodialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); //設置標題 prodialog.setTitle("幕課網"); //設置對話框里的文字信息 prodialog.setMessage("歡迎大家支持幕課網"); //設置圖標 prodialog.setIcon(R.drawable.ic_launcher); /** * 設定關于ProgressBar的一些屬性 */ //設定最大進度 prodialog.setMax(100); //設定初始化已經增長到的進度 prodialog.incrementProgressBy(50); //進度條是明確顯示進度的 prodialog.setIndeterminate(false); /** * 設定一個確定按鈕 */ prodialog.setButton(DialogInterface.BUTTON_POSITIVE, "確定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast.makeText(MainActivity.this, "歡迎大家支持幕課網", Toast.LENGTH_SHORT).show(); } }); //是否可以通過返回按鈕退出對話框 prodialog.setCancelable(true); //顯示ProgressDialog prodialog.show(); break; } } text.setText("第一進度百分比："+ (int) (progress.getProgress() / (float) progress.getMax() * 100)+ "% 第二進度百分比："+ (int) (progress.getSecondaryProgress()/ (float) progress.getMax() * 100) + "%"); }}<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ProgressBar android:id="@+id/progressBar1" style="?android:attr/progressBarStyleLarge" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <ProgressBar android:id="@+id/progressBar2" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <ProgressBar android:id="@+id/progressBar3" style="?android:attr/progressBarStyleSmall" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <ProgressBar android:id="@+id/horiz" style="@android:style/Widget.ProgressBar.Horizontal" android:progressDrawable="@drawable/progress_bar" android:layout_width="match_parent" android:layout_height="wrap_content" android:max="100" android:progress="50" android:secondaryProgress="80" /> <Button android:id="@+id/add" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/add" /> <Button android:id="@+id/reduce" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/reduce" /> <Button android:id="@+id/reset" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/reset" /> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <Button android:id="@+id/show" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/show" /></LinearLayout>新聞熱點
疑難解答
