Android ProgressBar进度条

1、ProgressBar的显示风格
大的环形progressBar: style="?android:attr/progressBarStyleLarge"
中的环形progressBar: style默认
小的环形progressBar： style="?android:attr/progressBarStyleSmall"
水平progressBar： style="?android:attr/progressBarStyleHorizontal"
这里用 style="@android:attr/progressBarStyleHorizontal"结果显示的还是圈，所以改用了 style="@android:style/Widget.DeviceDefault.ProgressBar.Horizontal"，小白不懂原理~~

@Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        //启用窗口特征        requestWindowFeature(Window.FEATURE_PROGRESS);        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);        setContentView(R.layout.main);        //显示进度条        setProgressBarVisibility(true);        setProgressBarIndeterminateVisibility(true);        //设置进度，总值10000        setProgress(9999);            }

效果：

progress.gif

2、自定义进度条样式：
progress_bar.xml

<?xml version="1.0" encoding="utf-8"?>

main.xml

效果：

Paste_Image.png

对话框形式的进度条：
MainActivity.java

package com.example.day101902;import android.app.Activity;import android.app.ProgressDialog;import android.content.DialogInterface;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.view.Window;import android.widget.Button;import android.widget.Toast;public class MainActivity extends Activity {    private ProgressDialog progressDialog;    private Button button;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        //启用窗口特征        requestWindowFeature(Window.FEATURE_PROGRESS);        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);        setContentView(R.layout.main);        //显示进度条        setProgressBarVisibility(true);        setProgressBarIndeterminateVisibility(true);        //设置进度，总值10000        setProgress(9999);                button = (Button) findViewById(R.id.button);        button.setOnClickListener(new OnClickListener() {                        @Override            public void onClick(View arg0) {                //初始化                progressDialog = new ProgressDialog(MainActivity.this);                //描述                progressDialog.setMessage("显示进度");                //标题                progressDialog.setTitle("进度条");                //样式                progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);                //最大进度                progressDialog.setMax(100);                //已经达到的进度                progressDialog.incrementProgressBy(50);;                //图标                progressDialog.setIcon(R.drawable.ic_launcher);                //明确显示进度                progressDialog.setIndeterminate(false);                //设置按钮                progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "确定", new DialogInterface.OnClickListener() {                                        @Override                    public void onClick(DialogInterface arg0, int arg1) {                        Toast.makeText(MainActivity.this, "返回页面", Toast.LENGTH_SHORT).show();                                            }                });                //设置取消                progressDialog.setCancelable(true);                //显示progressDialog                progressDialog.show();            }        });            }}

效果：

pb.gif

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