Android进度条控件ProgressBar使用

ProgressBar有四种样式，圆形的（大，中，小）和直条形的（水平）

对应的style为

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_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/progressBar4"

        style="?android:attr/progressBarStyleHorizontal"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" />

</LinearLayout>

注：style不写默认为中型进度条

使用requestWindowFeature来实现带进度条的标题栏

import android.support.v7.app.ActionBarActivity;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.Window;

public class MainActivity extends ActionBarActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        //启用精确显示进度的进度条和不显示精度的进度条标题栏

        requestWindowFeature(Window.FEATURE_PROGRESS);

        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);

        setContentView(R.layout.activity_main);

        //设置可见性

        setProgressBarVisibility(true);

        setProgressBarIndeterminateVisibility(true);

        //设置精确进度条的值，默认10000上限，达到10000后进度条不显示

        setProgress(9999);

    }

}

在activity中对ProgressBar进行简单操作

用TextView实时显示第一进度条和第二进度条

import android.support.v7.app.ActionBarActivity;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.Window;

import android.widget.Button;

import android.widget.ProgressBar;

import android.widget.TextView;

public class MainActivity extends ActionBarActivity implements OnClickListener{

    private ProgressBar progress;

    private Button add, reduce, reset;

    private TextView text;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        //设置无标题栏

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.activity_main);

        //初始化

        init();

    }

    private void init() {

        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.textView1);

        //获取第一进度条进度

        int first = progress.getProgress();

        //获取第二进度条进度

        int second = progress.getSecondaryProgress();

        //获取最大进度

        int max = progress.getMax();

        text.setText(

                "第一进度百分比:"+(int)(first/(float)max*100)+

                "% 第二进度百分比:"+(int)(second/(float)max*100)+"%");

        add.setOnClickListener(this);

        reduce.setOnClickListener(this);

        reset.setOnClickListener(this);

    }

    @Override

    public void onClick(View v) {

        switch (v.getId()) {

        case R.id.add:

            //增加第一进度条和第二进度条

            progress.incrementProgressBy(10);

            progress.incrementSecondaryProgressBy(10);

            break;

        case R.id.reduce:

            progress.incrementProgressBy(-10);

            progress.incrementSecondaryProgressBy(-10);

            break;

        case R.id.reset:

            progress.setProgress(50);

            progress.setSecondaryProgress(80);

            break;

        }

        text.setText(

                "第一进度百分比:"+(int)(progress.getProgress()/(float)progress.getMax()*100)+

                "% 第二进度百分比:"+(int)(progress.getSecondaryProgress()/(float)progress.getMax()*100)+"%");

    }

}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_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"

        android:max="100"

        android:secondaryProgress="80"

        android:progress="50"

        style="?android:attr/progressBarStyleHorizontal"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" />

    <Button

        android:id="@+id/add"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/bt1" />

    <Button

        android:id="@+id/reduce"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/bt2" />

    <Button

        android:id="@+id/reset"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/bt3" />

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="TextView" />

</LinearLayout>

使用Dialog形式

import android.support.v7.app.ActionBarActivity;

import android.app.Dialog;

import android.app.ProgressDialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.Window;

import android.widget.Button;

import android.widget.ProgressBar;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends ActionBarActivity{

    private ProgressDialog progress;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        //设置无标题栏

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.activity_main);

        init();

    }

    private void init() {

        //设置ProgressDialog的显示

                //新建对象

                progress = new ProgressDialog(this);

                //设置风格

                progress.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);

                //设置标题

                progress.setTitle("reading");

                //设置文本内容

                progress.setMessage("please waiting");

                //设置图标

                progress.setIcon(R.drawable.ic_launcher);

                progress.setMax(100);

                progress.incrementProgressBy(50);

                //是否非精确显示

                progress.setIndeterminate(false);

                progress.setButton(DialogInterface.BUTTON_POSITIVE, "确定", new DialogInterface.OnClickListener() {

                    @Override

                    public void onClick(DialogInterface dialog, int which) {

                        //此处不能写this

                        Toast.makeText(MainActivity.this, "ok...", Toast.LENGTH_SHORT).show();

                    }

                });

                //是否可以点击取消键(android自带的返回键)

                progress.setCancelable(false);

                //显示

                progress.show();

    }

}