ProgressBar的简单使用

绝地灬酷狼 2022-07-15 01:14 133阅读 0赞

package com.example.progressbar;
    
    import android.R.integer;
    import android.app.Activity;
    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 Activity {
    
    	private ProgressBar progressBar;
    	private Button addButton;
    	private Button reduceButton;
    	private Button resetButton;
    	private TextView textView;
    	private ProgressDialog progressDialog;
    	private Button button;
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		requestWindowFeature(Window.FEATURE_PROGRESS);
    		requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
    		setContentView(R.layout.activity_main);
    		setProgressBarVisibility(true);
    		setProgressBarIndeterminateVisibility(true);
    		setProgress(600);
    		progressBar=(ProgressBar) findViewById(R.id.hor);
    		addButton=(Button) findViewById(R.id.button1);
    		reduceButton=(Button) findViewById(R.id.button2);
    		resetButton=(Button) findViewById(R.id.button3);
    		textView=(TextView) findViewById(R.id.text);
    		button=(Button) findViewById(R.id.button4);
    		int first=progressBar.getProgress();
    		int second=progressBar.getSecondaryProgress();
    		int max=progressBar.getMax();
    		textView.setText("第一进度："+(int)((first/(float)max)*100)+"\n"+"第二进度："+(int)((second/(float)max)*100));
    		addButton.setOnClickListener(new OnClickListener() {
    			
    			@Override
    			public void onClick(View v) {
    				// TODO Auto-generated method stub
    				progressBar.incrementProgressBy(10);
    				progressBar.incrementSecondaryProgressBy(10);
    				textView.setText("第一进度："+(int)((progressBar.getProgress()/(float)progressBar.getMax())*100)+"\n"+"第二进度："+(int)((progressBar.getSecondaryProgress()/(float)progressBar.getMax())*100));
    			}
    		});
    reduceButton.setOnClickListener(new OnClickListener() {
    			
    			@Override
    			public void onClick(View v) {
    				// TODO Auto-generated method stub
    				progressBar.incrementProgressBy(-10);
    				progressBar.incrementSecondaryProgressBy(-10);
    				textView.setText("第一进度："+(int)((progressBar.getProgress()/(float)progressBar.getMax())*100)+"\n"+"第二进度："+(int)((progressBar.getSecondaryProgress()/(float)progressBar.getMax())*100));
    			}
    		});
    resetButton.setOnClickListener(new OnClickListener() {
    	@Override
    	public void onClick(View v) {
    		// TODO Auto-generated method stub
    		progressBar.setProgress(50);
    		progressBar.setSecondaryProgress(80);
    		textView.setText("第一进度："+(int)((progressBar.getProgress()/(float)progressBar.getMax())*100)+"\n"+"第二进度："+(int)((progressBar.getSecondaryProgress()/(float)progressBar.getMax())*100));
    	}
    });
    button.setOnClickListener(new OnClickListener() {
    	
    	@Override
    	public void onClick(View v) {
    		// TODO Auto-generated method stub
    		progressDialog=new ProgressDialog(MainActivity.this);
    		progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
    		progressDialog.setTitle("慕课网");
    		progressDialog.setMessage("欢迎大家支持慕课网！");
    		progressDialog.setIcon(R.drawable.ic_launcher);
    		
    		progressDialog.setMax(100);
    		progressDialog.incrementProgressBy(50);
    		progressDialog.setIndeterminate(false);
    		progressDialog.setButton(DialogInterface.BUTTON_POSITIVE,"确定",new DialogInterface.OnClickListener() {
    			
    			@Override
    			public void onClick(DialogInterface dialog, int which) {
    				// TODO Auto-generated method stub
    				Toast.makeText(MainActivity.this,"欢迎大家支持慕课网",Toast.LENGTH_SHORT).show();
    			}
    		});
    		progressDialog.setCancelable(true);
    		progressDialog.show();
    	}
    });
    	}
    
    	@Override
    	public boolean onCreateOptionsMenu(Menu menu) {
    		// Inflate the menu; this adds items to the action bar if it is present.
    		getMenuInflater().inflate(R.menu.main, menu);
    		return true;
    	}
    
    	@Override
    	public boolean onOptionsItemSelected(MenuItem item) {
    		// Handle action bar item clicks here. The action bar will
    		// automatically handle clicks on the Home/Up button, so long
    		// as you specify a parent activity in AndroidManifest.xml.
    		int id = item.getItemId();
    		if (id == R.id.action_settings) {
    			return true;
    		}
    		return super.onOptionsItemSelected(item);
    	}
    }