008 ProgressBar进度条 SeekBar拖动条

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ProgressBar进度条

进度条的属性

    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:text="@string/hello" />    //风格为大圆形进度条    android:id="@+id/progressBar1"    style="?android:attr/progressBarStyleLarge"    android:layout_width="wrap_content"    android:layout_height="wrap_content" />    //正常圆形进度条    android:id="@+id/progressBar2"    android:layout_width="wrap_content"    android:layout_height="wrap_content" />    //小圆形进度条    android:id="@+id/progressBar3"    style="?android:attr/progressBarStyleSmall"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:indeterminate="true" />    //横向进度条为可以添加indeterminate属性，圆形添加则没有效果    android:id="@+id/progressBar4"    style="?android:attr/progressBarStyleHorizontal"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:indeterminate="true" />    //横向进度条的进度状态    android:id="@+id/progressBar4"    style="?android:attr/progressBarStyleHorizontal"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:max="1000"    android:progress="200"    android:secondaryProgress="500" />

xml文件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="进度条" />    <ProgressBar        android:id="@+id/progressBar1"        style="?android:attr/progressBarStyleHorizontal"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/textView1"        android:layout_alignParentRight="true"        android:layout_below="@+id/textView1"        android:layout_marginTop="15dp" />    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/progressBar1"        android:layout_marginTop="18dp"        android:text="点 击" /></RelativeLayout>

java代码

package com.example.android008;import android.os.AsyncTask;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.ProgressBar;public class MainActivity extends Activity {    Button but;    ProgressBar bar;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        but = (Button) findViewById(R.id.button1);        bar = (ProgressBar) findViewById(R.id.progressBar1);        bar.setMax(100);// 设置最大值、        but.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                // TODO 自动生成的方法存根                new MyTask().execute();            }        });    }    class MyTask extends AsyncTask<Void, Integer, Void> {        // 更新操作        @Override        protected void onProgressUpdate(Integer... values) {            // TODO 自动生成的方法存根            super.onProgressUpdate(values);            bar.setProgress(values[0]);        }        @Override        protected Void doInBackground(Void... params) {            // TODO 自动生成的方法存根\            int i = 1;            while (i <= 1000) {                try {                    Thread.sleep(1000);                } catch (Exception e) {                    // TODO: handle exception                }                publishProgress(i);//开始进程                i++;            }            return null;        }    }}

拖动条

xml：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >    <SeekBar        android:id="@+id/seekBar1"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignParentTop="true"        android:layout_centerHorizontal="true"        android:layout_marginTop="47dp" />    <TextView        android:id="@+id/textView1"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/seekBar1"        android:layout_alignParentTop="true"        android:layout_marginLeft="80dp"        android:layout_marginTop="20dp"        android:text="拖动条" /></RelativeLayout>

代码：

package com.example.android008;import android.os.AsyncTask;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.webkit.WebView.FindListener;import android.widget.Button;import android.widget.ProgressBar;import android.widget.RatingBar;import android.widget.SeekBar;import android.widget.TextView;import android.widget.Toast;import android.widget.SeekBar.OnSeekBarChangeListener;public class MainActivity extends Activity {    /**     * @param savedInstanceState     */    private SeekBar seekbar;// 拖动条    // private RatingBar ratingbar;//星级评分条    private TextView text;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        seekbar = (SeekBar) findViewById(R.id.seekBar1);        // ratingbar=(RatingBar)findViewById(R.id.ratingBar1);        text = (TextView) findViewById(R.id.textView1);        // 拖动条建立监听器        seekbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {            @Override            public void onStopTrackingTouch(SeekBar seekBar) {                // TODO 自动生成的方法存根                Toast.makeText(MainActivity.this, "结束滑动", 1).show();            }            @Override            public void onStartTrackingTouch(SeekBar seekBar) {                // TODO 自动生成的方法存根                Toast.makeText(MainActivity.this, "开始滑动", 1).show();            }            @Override            public void onProgressChanged(SeekBar seekBar, int progress,                    boolean fromUser) {                // TODO 自动生成的方法存根                String result = "当前值" + progress + "";                text.setText(result);            }        });    }}

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