我想在我们的应用程序中点击一个按钮时打开设备的相机。请帮我解决这个问题。
我想在我们的应用程序中点击一个按钮时打开设备的相机。请帮我解决这个问题。
在 Button 的 onClick 内部:
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(intent, 0);
在您的清单文件中添加相机使用权限。
<uses-permission android:name="android.permission.CAMERA"></uses-permission>
请查看此处的更多讨论:Android相机意图
android.permission.CAMERA
,因为你不使用设备相机,而只运行另一个名为Camera的应用程序来使用相机。 - Maksim Dmitriev使用这个
BtnSelectImage.setOnClickListener(new Button.OnClickListener()
{
@Override
public void onClick(View v)
{
startCamera();
Intent intent=new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI.getPath());
startActivityForResult(intent, 1);
}
});
#initialize in main activity
path = Environment.getExternalStorageDirectory()
+ "/images/make_machine_example.jpg"; #
ImageView image=(ImageView)findViewById(R.id.image);
//--------------------------------------------------||
public void FromCamera(View) {
Log.i("camera", "startCameraActivity()");
File file = new File(path);
Uri outputFileUri = Uri.fromFile(file);
Intent intent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(intent, 1);
}
public void FromCard() {
Intent i = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, 2);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 2 && resultCode == RESULT_OK
&& null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
bitmap = BitmapFactory.decodeFile(picturePath);
image.setImageBitmap(bitmap);
if (bitmap != null) {
ImageView rotate = (ImageView) findViewById(R.id.rotate);
}
} else {
Log.i("SonaSys", "resultCode: " + resultCode);
switch (resultCode) {
case 0:
Log.i("SonaSys", "User cancelled");
break;
case -1:
onPhotoTaken();
break;
}
}
}
protected void onPhotoTaken() {
// Log message
Log.i("SonaSys", "onPhotoTaken");
taken = true;
imgCapFlag = true;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 4;
bitmap = BitmapFactory.decodeFile(path, options);
image.setImageBitmap(bitmap);
}