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();
} }