Android调用系统Camera录像时不能指定保存路径的问题

来源：互联网发布：遗传算法的书pdf版本编辑：程序博客网时间：2024/06/05 16:53

官方文档中提到使用Video capture intent进行录像，可以使用intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri)指定录像文件保存路径。

但是实际使用中如果指定路径，不能获取video，非常奇怪（使用2.3.3）。

国外开发者也有类似问题，并提出了2个解决方案：

http://stackoverflow.com/questions/13035638/intent-for-video-recording-gives-error

http://stackoverflow.com/questions/9003423/error-calling-mediastore-action-video-capture

上述2种做法有点绕，以下是我的解决方法，先从onActivityResult中的intent得到文件路径，然后复制到指定目录，再删除原文件

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protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);  
 
        if(resultCode == Activity.RESULT_OK) {
            //将存储在默认目录下的文件拷贝到指定文件夹下，删除默认文件
            String str = null;
            try{           
                if(requestCode == 1) { 
                    Uri uri = Uri.parse(data.getData().toString());
                    ContentResolver cr = this.getContentResolver();
                    Cursor cursor = cr.query(uri, null,null,null,null);
                    cursor.moveToFirst();
                    str = cursor.getString(1);
                    videofileName = cursor.getString(2);
                    cursor.close();           
                }
                File destfile = newFile(strsavedir + videofileName);
                File srcfile = newFile(str);
                moveFileTo(srcfile, destfile);
                super.onActivityResult(requestCode, resultCode, data);
            }catch(Exception e) {;            
            }
                    }
    }<div><h3> </h3><pre class="brush:js;java;auto-link:false;">public boolean moveFileTo(File srcFile, File destFile) throws IOException {  
        boolean iscopy = copyFileTo(srcFile, destFile);  
        if(!iscopy)  
            returnfalse; 
        delFile(srcFile); 
        returntrue; 
    }</pre><pre class="brush:js;java;auto-link:false;">public boolean copyFileTo(File srcFile, File destFile) throws IOException {  
        if(srcFile.isDirectory() || destFile.isDirectory())  
            returnfalse;// 判断是否是文件   
        FileInputStream fis = newFileInputStream(srcFile);  
        FileOutputStream fos = newFileOutputStream(destFile);  
        int readLen = 0;  
        byte[] buf = newbyte[1024];  
        while((readLen = fis.read(buf)) != -1) {  
            fos.write(buf, 0, readLen);  
        } 
        fos.flush(); 
        fos.close(); 
        fis.close(); 
        returntrue; 
    } 
    public boolean delFile(File file) {  
        if(file.isDirectory())  
            returnfalse; 
        returnfile.delete(); 
    }</pre></div>