我创建了一个应用程序，用户可以使用他们的默认相机拍摄照片。它在旧版本中工作正常，直到棒棒糖，但当我尝试在marshmallow中运行应用程序时，应用程序将关闭。 所以我添加了一些代码来为用户提供相机应用程序的许可，但即使它不起作用。
query.setQuery("id:"+docID);
我用条件检查手机版本。如果它是棉花糖，那么我给了一个方法名称showcamera来做棉花糖的功能
ShowCamera：
public class Cam extends Activity{
String receivingdata;
TextView namecat;
String amount,vat;
private static final String TAG = Cam.class.getSimpleName();
ImageButton imgview,imgchart,imgexit;
Boolean isInternetPresent = false;
ConnectionDetector cd;
AlertDialog alert;
ImageButton btgoback,btcaptureagain,btnpreview;
static TextView tv;
private ImageView imgPreview;
private ProgressDialog pDialog;
public static final int progress_bar_type = 0;
public static Bitmap bitmap;
final Context context=this;
ConnectionClass connectionClass;
private static final String IMAGE_CAPTURE_FOLDER = "Receipt";
private static final int CAMERA_PIC_REQUEST = 1111;
private static File file;
private Uri ImagefileUri;
private static final String PREF_FIRSTLAUNCH_HELP = "helpcmaera";
private boolean helpDisplayed = false;
private static final String LOGIN_URL = "http://balajee2777-001-site1.1tempurl.com/backup-07032016/Receiptphp/receipts.php";
@Override
public void onBackPressed() {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);
alertDialogBuilder.setTitle("Receipt");
alertDialogBuilder
.setMessage("Would you Like to go previous Page!")
.setCancelable(false)
.setPositiveButton("Yes",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
Intent i=new Intent(Cam.this,ListAct.class);
startActivity(i);
Cam.this.finish();
}
})
.setNegativeButton("No",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
dialog.cancel();
}
});
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.camcod);
cd = new ConnectionDetector(getApplicationContext());
isInternetPresent = cd.isConnectingToInternet();
Bundle b = getIntent().getExtras();
receivingdata = b.getString("key");
tv = (TextView)findViewById(R.id.camcodname);
tv.setText(receivingdata);
tv.setVisibility(View.INVISIBLE);
String[] bits=receivingdata.split("_");
String catname = bits[0];
String vatname= bits[1];
connectionClass= new ConnectionClass();
imgPreview = (ImageView) findViewById(R.id.imgpreview);
namecat=(TextView)findViewById(R.id.tvcatnamess);
namecat.setText(catname);
imgview=(ImageButton)findViewById(R.id.camlinearrecep);
imgchart=(ImageButton)findViewById(R.id.camlinearchart);
imgexit=(ImageButton)findViewById(R.id.camlinearexit);
btgoback=(ImageButton)findViewById(R.id.bgoback);
btnpreview=(ImageButton)findViewById(R.id.btnpreview);
btcaptureagain=(ImageButton)findViewById(R.id.bcaptureagain);
if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.M){
showcamera();
}else {
Intent intent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
ImagefileUri = Uri.fromFile(getFile());
intent.putExtra(MediaStore.EXTRA_OUTPUT, ImagefileUri);
startActivityForResult(intent, CAMERA_PIC_REQUEST);
}
showHelpForFirstLaunch();
btgoback.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(isInternetPresent) {
showreceipt();
}else{
neti();
}
}
});
btnpreview.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i=new Intent(Cam.this,DeleteMainAct.class);
startActivity(i);
}
});
btcaptureagain.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.M){
showcamera();
}else {
Intent intent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
ImagefileUri = Uri.fromFile(getFile());
intent.putExtra(MediaStore.EXTRA_OUTPUT, ImagefileUri);
startActivityForResult(intent, CAMERA_PIC_REQUEST);
}
}
});
imgview.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);
// set title
alertDialogBuilder.setTitle("Receipt");
// set dialog message
alertDialogBuilder
.setMessage("Would you Like to view receipts!")
.setCancelable(false)
.setPositiveButton("Yes",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
// if this button is clicked, close
// current activity
Intent i =new Intent(Cam.this,Viewreceipt.class);
startActivity(i);
Cam.this.finish();
}
})
.setNegativeButton("No",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
// if this button is clicked, just close
// the dialog box and do nothing
dialog.cancel();
}
});
// create alert dialog
AlertDialog alertDialog = alertDialogBuilder.create();
// show it
alertDialog.show();
}
});
imgchart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);
// set title
alertDialogBuilder.setTitle("Receipt");
// set dialog message
alertDialogBuilder
.setMessage("Would you Like to see report!")
.setCancelable(false)
.setPositiveButton("Yes",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
// if this button is clicked, close
// current activity
Intent i =new Intent(Cam.this,Chartboy.class);
startActivity(i);
Cam.this.finish();
}
})
.setNegativeButton("No",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
// if this button is clicked, just close
// the dialog box and do nothing
dialog.cancel();
}
});
// create alert dialog
AlertDialog alertDialog = alertDialogBuilder.create();
// show it
alertDialog.show();
}
});
imgexit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);
// set title
alertDialogBuilder.setTitle("Receipt");
// set dialog message
alertDialogBuilder
.setMessage("Would you Like to exit!")
.setCancelable(false)
.setPositiveButton("Yes",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
// if this button is clicked, close
// current activity
Intent startMain = new Intent(Intent.ACTION_MAIN);
startMain.addCategory(Intent.CATEGORY_HOME);
startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(startMain);
}
})
.setNegativeButton("No",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
// if this button is clicked, just close
// the dialog box and do nothing
dialog.cancel();
}
});
// create alert dialog
AlertDialog alertDialog = alertDialogBuilder.create();
// show it
alertDialog.show();
}
});
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
if(requestCode==CAMERA_PIC_REQUEST){
if(grantResults[0]==PackageManager.PERMISSION_GRANTED){
Intent intent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
ImagefileUri = Uri.fromFile(getFile());
intent.putExtra(MediaStore.EXTRA_OUTPUT, ImagefileUri);
startActivityForResult(intent, CAMERA_PIC_REQUEST);
}else{
Toast.makeText(this,"Camera permission not granted",Toast.LENGTH_SHORT).show();
}
}else{
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
private void showcamera() {
if(checkSelfPermission(android.Manifest.permission.CAMERA)== PackageManager.PERMISSION_GRANTED){
Intent intent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
ImagefileUri = Uri.fromFile(getFile());
intent.putExtra(MediaStore.EXTRA_OUTPUT, ImagefileUri);
startActivityForResult(intent, CAMERA_PIC_REQUEST);
}else{
if(shouldShowRequestPermissionRationale(Manifest.permission.CAMERA)){
Toast.makeText(this,"Camera permission is needed to show the preview",Toast.LENGTH_SHORT).show();
}
requestPermissions(new String[]{Manifest.permission.CAMERA}, CAMERA_PIC_REQUEST);
}
}
private void showHelpForFirstLaunch() {
helpDisplayed = getPreferenceValue(PREF_FIRSTLAUNCH_HELP, false);
if (!helpDisplayed) {
showHelp();
savePreference(PREF_FIRSTLAUNCH_HELP, true);
}else if(helpDisplayed){
return;
}
}
private void showHelp() {
final View instructionsContainer = findViewById(R.id.container_help);
instructionsContainer.setVisibility(View.VISIBLE);
instructionsContainer.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
instructionsContainer.setVisibility(View.INVISIBLE);
}
});
}
private boolean getPreferenceValue(String key, boolean defaultValue) {
SharedPreferences preferences = getPreferences(MODE_PRIVATE);
return preferences.getBoolean(key, defaultValue);
}
private void savePreference(String key, boolean value) {
SharedPreferences preferences = getPreferences(MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();
editor.putBoolean(key, value);
editor.commit();
}
private File getFile() {
String filepath = Environment.getExternalStorageDirectory().getPath();
file = new File(filepath, IMAGE_CAPTURE_FOLDER);
if (!file.exists()) {
file.mkdirs();
}
String names=tv.getText().toString();
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
return new File(file + File.separator + names+"_"+timeStamp
+ ".jpg");
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == CAMERA_PIC_REQUEST) {
imgPreview.setVisibility(View.VISIBLE);
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int dw = size.x;
int dh = size.y;
// Load up the image's dimensions not the image itself
BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options();
bmpFactoryOptions.inJustDecodeBounds = true;
Bitmap bmp = BitmapFactory.decodeFile(ImagefileUri.getPath(),
bmpFactoryOptions);
int heightRatio = (int) Math.ceil(bmpFactoryOptions.outHeight
/ (float) dh);
int widthRatio = (int) Math.ceil(bmpFactoryOptions.outWidth
/ (float) dw);
Log.v("HEIGHTRATIO", "" + heightRatio);
Log.v("WIDTHRATIO", "" + widthRatio);
if (heightRatio > 1 && widthRatio > 1) {
if (heightRatio > widthRatio) {
// Height ratio is larger, scale according to it
bmpFactoryOptions.inSampleSize = heightRatio;
} else {
// Width ratio is larger, scale according to it
bmpFactoryOptions.inSampleSize = widthRatio;
}
}
// Decode it for real
bmpFactoryOptions.inJustDecodeBounds = false;
bmp = BitmapFactory.decodeFile(ImagefileUri.getPath(),
bmpFactoryOptions);
imgPreview.setImageBitmap(bmp);
}
} else if (resultCode == RESULT_CANCELED) {
// user cancelled Image capture
Toast.makeText(getApplicationContext(),
"User cancelled image capture", Toast.LENGTH_SHORT).show();
} else {
// failed to capture image
Toast.makeText(getApplicationContext(),
"Sorry! Failed to capture image", Toast.LENGTH_SHORT)
.show();
}
}
private void neti() {
final LayoutInflater layoutInflater = LayoutInflater.from(Cam.this);
final View promptView = layoutInflater.inflate(R.layout.connectionlost, null);
final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(Cam.this);
alertDialogBuilder.setView(promptView);
alertDialogBuilder.setCancelable(false);
final Button retry=(Button)promptView.findViewById(R.id.btnretry);
retry.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent=getIntent();
finish();
startActivity(intent);
}
});
alert= alertDialogBuilder.create();
alert.show();
}
private void showreceipt() {
LayoutInflater repcard=LayoutInflater.from(Cam.this);
View promptView=repcard.inflate(R.layout.moneyreceipt,null);
AlertDialog.Builder alertDialogBuilder=new AlertDialog.Builder(Cam.this);
alertDialogBuilder.setCancelable(false);
alertDialogBuilder.setView(promptView);
final EditText amt=(EditText)promptView.findViewById(R.id.edamt);
final EditText vta=(EditText)promptView.findViewById(R.id.edvat);
final TextView tvs=(TextView)promptView.findViewById(R.id.tvamount);
final TextView tvat=(TextView)promptView.findViewById(R.id.tvvat);
tvs.setVisibility(View.INVISIBLE);
tvat.setVisibility(View.INVISIBLE);
amt.setRawInputType(Configuration.KEYBOARD_12KEY);
vta.setRawInputType(Configuration.KEYBOARD_12KEY);
final Button save=(Button)promptView.findViewById(R.id.btnmoneysave);
save.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
tvs.setText(amt.getText().toString());
tvat.setText(vta.getText().toString());
amount=tvs.getText().toString();
vat=tvat.getText().toString();
// Toast.makeText(Cam.this, amount, Toast.LENGTH_LONG).show();
//Toast.makeText(Cam.this, vat, Toast.LENGTH_LONG).show();
detailsreceiptupload();
}
});
AlertDialog alert = alertDialogBuilder.create();
alert.show();
}
private void detailsreceiptupload() {
String[] bits=receivingdata.split("_");
String catname = bits[0];
String cdte=bits[1];
String[] nyte=cdte.split("#");
String email=nyte[0];
String cdate=nyte[1];
String cimagetag=tv.getText().toString();
//String amt=tvs.getText().toString();
userLogin(catname, cdate,email,cimagetag,amount,vat);
}
private void userLogin(String catname, String cdate, String email, String cimagetag, String amount, String vat) {
class UserLoginClass extends AsyncTask<String,Void,String> {
ProgressDialog loading;
@Override
protected void onPreExecute() {
super.onPreExecute();
loading = ProgressDialog.show(Cam.this, "Connecting to Cloud", null, true, true);
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
loading.dismiss();
if(s.equalsIgnoreCase("success")) {
DoLogin dologin=new DoLogin();
dologin.execute("");
}
else
{
Toast.makeText(Cam.this,s,Toast.LENGTH_LONG).show();
}
}
@Override
protected String doInBackground(String... params) {
HashMap<String,String> data = new HashMap<>();
data.put("catname",params[0]);
data.put("cdate",params[1]);
data.put("email",params[2]);
data.put("cimagetag",params[3]);
data.put("amount",params[4]);
data.put("vat",params[5]);
RegisterUserClass ruc = new RegisterUserClass();
String result = ruc.sendPostRequest(LOGIN_URL,data);
return result;
}
}
UserLoginClass ulc = new UserLoginClass();
ulc.execute(catname,cdate,email,cimagetag,amount,vat);
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case progress_bar_type:
pDialog = new ProgressDialog(this);
pDialog.setMessage("Processing...");
pDialog.setIndeterminate(true);
pDialog.setMax(100);
pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pDialog.setProgressNumberFormat(null);
pDialog.setProgressPercentFormat(null);
pDialog.setCancelable(false);
pDialog.show();
return pDialog;
default:
return null;
}
}
class DoLogin extends AsyncTask<String,String,String> {
String z="";
@Override
protected void onPreExecute() {
super.onPreExecute();
showDialog(progress_bar_type);
}
@Override
protected String doInBackground(String... params) {
String ExternalStorageDirectoryPath = Environment
.getExternalStorageDirectory()
.getAbsolutePath();
String targetPath = ExternalStorageDirectoryPath + "/Receipt";
File targetDirector = new File(targetPath);
File[] files = targetDirector.listFiles();
File destinationdir = new File(Environment.getExternalStorageDirectory() ,"/CompressedImage");
if (!destinationdir.exists()) {
destinationdir.mkdirs();
}
for(File file1:files){
FileOutputStream fos=null;
try{
File file=new File(destinationdir,file1.getName());
fos=new FileOutputStream(file);
Bitmap bm = BitmapFactory.decodeFile(file1.getAbsolutePath());
bm.compress(Bitmap.CompressFormat.JPEG, 25, fos);
fos.flush();
fos.close();
MediaStore.Images.Media.insertImage(getContentResolver(), destinationdir.getPath(), file.getName(), file.getName());
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return z;
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
String ExternalStorageDirectoryPath = Environment
.getExternalStorageDirectory()
.getAbsolutePath();
String targetPath = ExternalStorageDirectoryPath + "/Receipt";
File targetDirector = new File(targetPath);
File[] files = targetDirector.listFiles();
for (File file : files) {
file.delete();
}
Intent i=new Intent(Cam.this,ReceiptGrid.class);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i);
Cam.this.finish();
dismissDialog(progress_bar_type);
}
protected void onProgressUpdate(String... progress) {
pDialog.setProgress(Integer.parseInt(progress[0]));
}
}}