简单获取Android手机中图片方法

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getPicsFromPhone();
}

/**
* 获取手机中的图片信息
* @description：
*/
private void getPicsFromPhone() {

Uri mImgUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
ContentResolver cr = this.getContentResolver();
Cursor cursor = cr.query(mImgUri, null, MediaStore.Images.Media.MIME_TYPE + "=?+ or" + MediaStore.Images.Media.MIME_TYPE + "=?", new String[] { "image/jpeg", "image/png" }, MediaStore.Images.Media.DATE_MODIFIED);
while (cursor.moveToNext()) {
String path=cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));//图片路径 
File parentFile=new File(path).getParentFile();//图片所在文件
if(parentFile==null){
continue;
}
String dirPath=parentFile.getAbsolutePath();//文件路径
//接下来可以对图片或图片文件进行操作啦
}
}

}