功能
1. 实现截取当前屏幕的功能。
2. 把截取的图片保存到SDCard中的某个目录文件夹下面。
Java代码
package com.app.test01;import java.io.File;import java.io.FileOutputStream;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.Bitmap.Config;import android.os.Bundle;import android.os.Environment;import android.view.Display;import android.view.View;import android.view.View.OnClickListener;import android.view.WindowManager;import android.widget.Button;import android.widget.Toast;public class JieTu extends Activity { private Button btnButton; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.jietu); btnButton = (Button) findViewById(R.id.button1); btnButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub GetandSaveCurrentImage(); } }); } /** * 获取和保存当前屏幕的截图 */ private void GetandSaveCurrentImage() { // 1.构建Bitmap WindowManager windowManager = getWindowManager(); Display display = windowManager.getDefaultDisplay(); int w = display.getWidth(); int h = display.getHeight(); Bitmap Bmp = Bitmap.createBitmap(w, h, Config.ARGB_8888); // 2.获取屏幕 View decorview = this.getWindow().getDecorView(); decorview.setDrawingCacheEnabled(true); Bmp = decorview.getDrawingCache(); String SavePath = getSDCardPath() + "/AndyDemo/ScreenImage"; // 3.保存Bitmap try { File path = new File(SavePath); // 文件 String filepath = SavePath + "/Screen_1.png"; File file = new File(filepath); if (!path.exists()) { path.mkdirs(); } if (!file.exists()) { file.createNewFile(); } FileOutputStream fos = null; fos = new FileOutputStream(file); if (null != fos) { Bmp.compress(Bitmap.CompressFormat.PNG, 90, fos); fos.flush(); fos.close(); Toast.makeText(this, "截屏文件已保存至SDCard/AndyDemo/ScreenImage/下", Toast.LENGTH_LONG).show(); } } catch (Exception e) { e.printStackTrace(); } } /** * 获取SDCard的目录路径功能 */ private String getSDCardPath() { File sdcardDir = null; // 判断SDCard是否存在 boolean sdcardExist = Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED); if (sdcardExist) { sdcardDir = Environment.getExternalStorageDirectory(); } return sdcardDir.toString(); }}
添加读写权限
由于要对SDCard进行操作，所以别忘记了在manifest.xml文件中赋以对SDCard的读写权限：
【参考】