android 简单的截屏 例子源码下载

【实例截图】

【核心代码】

package com.zhl.cutscreen;


import java.io.BufferedOutputStream;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import android.os.Bundle;
import android.os.Environment;
import android.R.xml;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.PixelFormat;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Display;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity
{
	private static final String TAG = "MainActivity";
	private Button mButton;
	View rootView;
	private View view;
	private Bitmap bitmap;

	private OnClickListener mClickListener = new OnClickListener()
	{
		
		@Override
		public void onClick(View v)
		{
			// TODO Auto-generated method stub
			switch (v.getId())
			{
			case R.id.button1:
				view.buildDrawingCache();
//				bitmap = view.getDrawingCache();
//				saveUseFrameBuffer();
//				savePic();
				getRoot();
				break;

			default:
				break;
			}
		}
	};
	
	@Override
	protected void onCreate(Bundle savedInstanceState)
	{
		super.onCreate(savedInstanceState);
		
		rootView = LayoutInflater.from(this).inflate(R.layout.main, null);
		setContentView(rootView);
		
		try
		{
			Runtime.getRuntime().exec("su");
		}
		catch (IOException e)
		{
			// 
			e.printStackTrace();
		}
		initValue();
	}
	
	private void initValue()
	{
		
		mButton = (Button) findViewById(R.id.button1);
		view = rootView.getRootView();
		view.setDrawingCacheEnabled(true);
		
		mButton.setOnClickListener(mClickListener);
	}
	
	private void getRoot()
	{
		String fileName = Environment.getExternalStorageDirectory().toString()
					 "/picc/ppic"
					 (i  )
					 ".jpg";
			String string = "/system/bin/screencap -p " fileName "\n\n";
			try
			{
//				ProgressDialog progressDialog = ProgressDialog.show(this, "ROOT", "正在获取ROOT权限",true,false);
//				progressDialog.show();
				
				Runtime.getRuntime().exec(string);
			}
			catch (IOException e)
			{
				Toast.makeText(this, "获取ROOT权限出错", Toast.LENGTH_SHORT).show();
				e.printStackTrace();
			}
	}
	
	public boolean RootCmd(String cmd){  
        Process process = null;  
        DataOutputStream os = null;  
        try{  
            process = Runtime.getRuntime().exec("su");  
            os = new DataOutputStream(process.getOutputStream());  
            os.writeBytes(cmd  "\n");  
            os.writeBytes("exit\n");  
            os.flush();  
            process.waitFor();  
        } catch (Exception e) {  
            return false;  
        } finally {  
            try {  
                if (os != null)   {  
                    os.close();  
                }  
                process.destroy();  
            } catch (Exception e) {  
            }  
        }  
        return true;  
    }  
	
	
	
	
	
	public static InputStream getInputStreamaa(File file)
	{
		FileInputStream fis = null;
		try
		{
			fis = new FileInputStream(file);
		}
		catch (FileNotFoundException e)
		{
			// 
			e.printStackTrace();
		}
		return fis;
	}
	
	private void saveUseFrameBuffer()
	{
		DisplayMetrics metrics = new DisplayMetrics();
		WindowManager vm = (WindowManager)getSystemService(Context.WINDOW_SERVICE);
		Display display = vm.getDefaultDisplay();
		display.getMetrics(metrics);
		int height = metrics.heightPixels;
		int with = metrics.widthPixels;
		
		int picelformat = display.getPixelFormat();
		PixelFormat localFormat = new PixelFormat();
		PixelFormat.getPixelFormatInfo(picelformat, localFormat);
		int deepth = localFormat.bytesPerPixel;
		
		
		int[] data = new int[height*with*deepth/2];
		InputStream stream = getInputStreamaa(new File("/dev/graphics/fb0"));
		DataInputStream dStream = new DataInputStream(stream);
		DataInput frameBuffer = new DataInputStream(dStream);
		convertToRGB565(frameBuffer, data);
		bitmap = Bitmap.createBitmap(data, with, height, Bitmap.Config.RGB_565);
		
	}
	
	public static void convertToRGB565(DataInput framebuffer,int[] into)
	{
		for (int i = 0; i < into.length; i  )
		{
			try
			{
				into[i] = framebuffer.readShort();
			}
			catch (IOException e)
			{
				// 
				e.printStackTrace();
			}
		}
	}
	

    static int i = 1;
	private void savePic()
	{
		String fileName = Environment.getExternalStorageDirectory().toString()
				 "/picc/zpic"
				 (i  )
				 ".jpg";
		File file = new File(fileName);
		if (!file.getParentFile().exists())
		{
			file.getParentFile().mkdirs();
		}
		
		try
		{
			BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
			bitmap.compress(Bitmap.CompressFormat.JPEG, 80, bos);
			bos.flush();
			bos.close();
			Log.d(TAG, "成功，保存在：" fileName);
		}
		catch (Exception e)
		{
			// 
			e.printStackTrace();
		}
	}



	@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;
	}

}