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private void take(){
// 调用相机前开启服务
mServiceIntent = new Intent(mContext, HcService.class);
startService(mServiceIntent);
runOnUiThread(new Runnable() {
@Override
public void run() {
File imageStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "MyApp");
FileUtil.deleteDir(imageStorageDir);
// Create the storage directory if it does not exist
if (!imageStorageDir.exists()){
if (!imageStorageDir.mkdirs())
return;
}
File file = new File(imageStorageDir + File.separator + "IMG_" + String.valueOf(System.currentTimeMillis()) + ".jpg");
//设定图片的uri路径
imageUri = Uri.fromFile(file);
final List<Intent> cameraIntents = new ArrayList<Intent>();
//调用相机的intent
final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
//获取包管理器(就是包含了整个清单文件,其中包括application,activity)
final PackageManager packageManager = getPackageManager();
//查询相机intent的activity,ResolveInfo其实就是activity节点
final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0);
//进行遍历
for(ResolveInfo res : listCam) {
//获取list中的元素,就activity,就是根据activity拿到相机的包名
final String packageName = res.activityInfo.packageName;
//将相机的intent 赋给新的intent
final Intent i = new Intent(captureIntent);
//重新设置当前intent的Component (写全包名)
i.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
i.setPackage(packageName);
i.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
cameraIntents.add(i);
}
//这个是文档内容,包含image,音视频
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
//添加分类
i.addCategory(Intent.CATEGORY_OPENABLE);
//类型为图片
i.setType("image/*");
//开始创建跳转应用的对话框,可以自己设置dialog样式,也可以像下面这样,同时创建包含多个
Intent chooserIntent = Intent.createChooser(i,"Image Chooser");
//添加额外初始相机intent,但要序列化
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, cameraIntents.toArray(new Parcelable[]{}));
mContext.startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
}
});
}