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Ich konvertiere Zeichenfolge in URL und dann URL zu Bitmap, um Bild in der Bildansicht in AsynTask-Methode festzulegen. Aber wenn ich die AsyncTask-Methode anrufe geht es nicht in die App und die App stürzt ab mit Nullpointerexception.Woher mache ich Fehler? Bitte korrigieren Sie mich..seine Hilfe wird sehr geschätzt werden.Bild wird nicht auf Bildansicht gesetzt
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contributor_profile);
contributorName = (TextView) findViewById(R.id.contributor_name);
androidOS = Build.VERSION.RELEASE;
device_uuid= Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID);
profile_pic = (ImageView) findViewById(R.id.profile_pic);
myChronometer = (Chronometer)findViewById(R.id.recordtime);
per = (TextView) findViewById(R.id.per);
statement = (EditText) findViewById(R.id.reason);
time = (EditText) findViewById(R.id.hours_count);
month_week = (Spinner) findViewById(R.id.weekmonth);
Bundle bun = getIntent().getExtras();
contributor_name = bun.getString("FIRST_NAME");
profile_id = bun.getString("P_ID");
profile_img = bun.getString("PROFILE_PIC");
profileImg = "https://www.thetagoreproject.org"+profile_img;
try {
URL url = new URL(profileImg);
} catch (MalformedURLException e) {
e.printStackTrace();
}
new BitmapAsyncTask().execute();
profile_pic.setImageBitmap(bitmap);
Log.d(TAG, " contributor_name Check :" + contributor_name);
Log.d(TAG, " profile_id Check :" + profile_id);
finished= (Button) findViewById(R.id.finished);
finished.setOnClickListener(this);
buttonStart = (ImageButton) findViewById(R.id.samplerecord);
buttonStart.setImageResource(R.mipmap.vs_sample_record);
buttonStop = (ImageButton) findViewById(R.id.stop);
buttonPlayLastRecordAudio = (ImageButton) findViewById(R.id.play);
buttonStopPlayingRecording = (ImageButton) findViewById(R.id.stopplay);
buttonStop.setEnabled(false);
buttonPlayLastRecordAudio.setEnabled(false);
buttonStopPlayingRecording.setEnabled(false);
contributorName.setText("Hey" +contributor_name);
//profile_pic.setImageBitmap(bitmap);
db = new SQLiteHandler(getApplicationContext());
random = new Random();
buttonStart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(checkPermission()) {
AudioSavePathInDevice =
Environment.getExternalStorageDirectory().getAbsolutePath() + "/" +
CreateRandomAudioFileName(5) + "AudioRecording.mp3";
MediaRecorderReady();
try {
mediaRecorder.prepare();
mediaRecorder.start();
// mediaRecorder.setMaxDuration(6000);
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
buttonStart.setEnabled(false);
buttonStart.setVisibility(View.INVISIBLE);
buttonStop.setImageResource(R.mipmap.vs_sample_stoprecord);
buttonStop.setEnabled(true);
buttonStop.setVisibility(View.VISIBLE);
myChronometer.setBase(SystemClock.elapsedRealtime());
myChronometer.setVisibility(View.VISIBLE);
myChronometer.start();
Toast.makeText(ContributorProfile.this, "Recording started",
Toast.LENGTH_LONG).show();
} else {
requestPermission();
}
}
});
buttonStop.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mediaRecorder.stop();
myChronometer.stop();
myChronometer.setVisibility(View.INVISIBLE);
buttonStop.setEnabled(false);
buttonStop.setVisibility(View.INVISIBLE);
buttonPlayLastRecordAudio.setEnabled(true);
buttonPlayLastRecordAudio.setVisibility(View.VISIBLE);
// buttonStart.setEnabled(true);
// buttonStart.setVisibility(View.VISIBLE);
// buttonStopPlayingRecording.setEnabled(false);
Toast.makeText(ContributorProfile.this, "Recording Completed",
Toast.LENGTH_LONG).show();
}
});
buttonPlayLastRecordAudio.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) throws IllegalArgumentException,
SecurityException, IllegalStateException {
// buttonStop.setEnabled(false);
// buttonStart.setEnabled(false);
buttonStopPlayingRecording.setEnabled(true);
buttonStopPlayingRecording.setVisibility(View.VISIBLE);
mediaPlayer = new MediaPlayer();
try {
mediaPlayer.setDataSource(AudioSavePathInDevice);
mediaPlayer.prepare();
} catch (IOException e) {
e.printStackTrace();
}
mediaPlayer.start();
Toast.makeText(ContributorProfile.this, "Recording Playing",
Toast.LENGTH_LONG).show();
}
});
buttonStopPlayingRecording.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// buttonStop.setEnabled(false);
buttonStart.setEnabled(true);
buttonStart.setVisibility(View.VISIBLE);
buttonStopPlayingRecording.setEnabled(false);
buttonStopPlayingRecording.setVisibility(View.INVISIBLE);
// buttonPlayLastRecordAudio.setEnabled(true);
if(mediaPlayer != null){
mediaPlayer.stop();
mediaPlayer.release();
MediaRecorderReady();
}
}
});
}
private class BitmapAsyncTask extends AsyncTask<Void,Void,Void> {
@Override
protected Void doInBackground(Void... params) {
getBitmapFromURL(profileImg);
return null;
}
}
public Bitmap getBitmapFromURL(String src) {
try {
URL url = new URL(src);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
bitmap = BitmapFactory.decodeStream(input);
return bitmap;
} catch (IOException e) {
// Log exception
return null;
}
}
@Override
public void onClick(View v) {
if (v == finished) {
String tag_string_req = "req_login";
StringRequest postStringRequest = new StringRequest(Request.Method.POST, SC_LOGIN_LINK,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Reponse Check for sound upload login :" + response);
// Log.d(TAG,"Object Check :"+json);
try {
JSONObject json = new JSONObject(response);
access_token = json.getString("access_token");
expires_in = json.getString("expires_in");
refresh_token = json.getString("refresh_token");
// doFileUpload();
new AsyncTaskRunner().execute();
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
//Toast.makeText(AccessToken.this, error.toString(), Toast.LENGTH_LONG).show();
Log.e(TAG, "Error Response Check :" + error);
}
}) {
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("client_id", client_id);
params.put("client_secret", client_secret);
params.put("grant_type", grant_type);
params.put("username", username);
params.put("password", user_password);
Log.d(TAG, "Params :" + params);
return params;
}
};
//how to do tht??
AppController.getInstance().addToRequestQueue(postStringRequest, tag_string_req);
// ContributorsProfile();
// forwardtoOurServer();
Intent i = new Intent(ContributorProfile.this, Categories.class);
startActivity(i);
// UploadAudio();
}
// }else if(v==buttonUpload){
// accesstoken.checkLogin();//yahan pe call lr rhe h....nd isk ajo v response aa rha h...uska value isi class me chahiye...
}
public byte[] toByteArray(InputStream in) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
int read = 0;
byte[] buffer = new byte[1024];
while (read != -1) {
read = in.read(buffer);
if (read != -1)
out.write(buffer,0,read);
}
out.close();
return out.toByteArray();
}
public void forwardtoOurServer() {
final String statemnt = statement.getText().toString().trim();
String tag_string_req = "req_login";
StringRequest postStringRequest = new StringRequest(Request.Method.POST, CONTRIBUTORPROFILE_API,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Audio Upload Response Check :" + response);
Log.d(TAG,"Object Check :"+response);
try {
JSONObject json = new JSONObject(response).getJSONObject("contributor").getJSONObject("Contributor");
contributor_id = json.getString("id");
String profile_id = json.getString("profile_id");
String secret_token = json.getString("secret_token");
String statement = json.getString("statement");
String status = json.getString("status");
String time = json.getString("time");
String uploaded_on = json.getString("uploaded_on");
String vs_cdn_id = json.getString("vs_cdn_id");
String created = json.getString("created");
String modified = json.getString("modified");
contributor_id = json.getString("id");
session.addContributorSession(contributor_id);
db.addContributor(contributor_id, profile_id, secret_token, statement, status, time, uploaded_on, vs_cdn_id, created, modified);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Error Response Check :" + error);
}
}) {
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("data[Contributor][statement]",statemnt);
params.put("data[Contributor][profile_id]",profile_id);
params.put("data[Contributor][status]","1");
params.put("data[Contributor][secret_token]",secret_token);
params.put("data[Contributor][vs_cdn_id]",vs_cdn_id);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
Date now = new Date();
String strDate = sdf.format(now);
params.put("data[Contributor][uploaded_on]",strDate);
//params.put("data[Contributor][time]",hours+" hours "+"per "+months);
// params.put("password", user_password);
Log.d(TAG, "Params :" + params);
return params;
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/x-www-form-urlencoded");
headers.put("UUID", device_uuid);
headers.put("APPID", "2A192A0C22");
headers.put("USERID", "1");
headers.put("PLATFORM", "Andriod");
headers.put("APP_REQUEST", "1");
headers.put("PLATFORMVERSION",androidOS);
return headers;
}
};
AppController.getInstance().addToRequestQueue(postStringRequest, tag_string_req);
}
public void MediaRecorderReady(){
mediaRecorder=new MediaRecorder();
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
mediaRecorder.setOutputFile(AudioSavePathInDevice);
}
public String CreateRandomAudioFileName(int string){
StringBuilder stringBuilder = new StringBuilder(string);
int i = 0 ;
while(i < string) {
stringBuilder.append(RandomAudioFileName.
charAt(random.nextInt(RandomAudioFileName.length())));
i++ ;
}
return stringBuilder.toString();
}
private void requestPermission() {
ActivityCompat.requestPermissions(ContributorProfile.this, new
String[]{WRITE_EXTERNAL_STORAGE, RECORD_AUDIO}, RequestPermissionCode);
}
@Override
public void onRequestPermissionsResult(int requestCode,String permissions[], int[] grantResults) {
switch (requestCode) {
case RequestPermissionCode:
if (grantResults.length> 0) {
boolean StoragePermission = grantResults[0] ==
PackageManager.PERMISSION_GRANTED;
boolean RecordPermission = grantResults[1] ==
PackageManager.PERMISSION_GRANTED;
if (StoragePermission && RecordPermission) {
Toast.makeText(ContributorProfile.this, "Permission Granted",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(ContributorProfile.this,"Permission Denied",Toast.LENGTH_LONG).show();
}
}
break;
}
}
public boolean checkPermission() {
int result = ContextCompat.checkSelfPermission(getApplicationContext(),
WRITE_EXTERNAL_STORAGE);
int result1 = ContextCompat.checkSelfPermission(getApplicationContext(),
RECORD_AUDIO);
return result == PackageManager.PERMISSION_GRANTED &&
result1 == PackageManager.PERMISSION_GRANTED;
}
private class AsyncTaskRunner extends AsyncTask<String,Void,String> {
@Override
protected String doInBackground(String... params) {
doFileUpload();
return null;
}
}
Das ist mein RoundedImageView.java und die Nullpointer auftritt in dieser Linie der RoundedImageview Klasse "Bitmap Bitmap = b.copy (Bitmap.Config.ARGB_8888, true);"
public class RoundedImageView extends android.support.v7.widget.AppCompatImageView{
public RoundedImageView(Context ctx, AttributeSet attrs) {
super(ctx, attrs);
}
@Override
protected void onDraw(Canvas canvas) {
Drawable drawable = getDrawable();
if (drawable == null) {
return;
}
if (getWidth() == 0 || getHeight() == 0) {
return;
}
Bitmap b = ((BitmapDrawable) drawable).getBitmap();
Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);
int w = getWidth(), h = getHeight();
Bitmap roundBitmap = getRoundedCroppedBitmap(bitmap, w);
canvas.drawBitmap(roundBitmap, 0, 0, null);
}
public static Bitmap getRoundedCroppedBitmap(Bitmap bitmap, int radius) {
Bitmap finalBitmap;
if (bitmap.getWidth() != radius || bitmap.getHeight() != radius)
finalBitmap = Bitmap.createScaledBitmap(bitmap, radius, radius,
false);
else
finalBitmap = bitmap;
Bitmap output = Bitmap.createBitmap(finalBitmap.getWidth(),
finalBitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, finalBitmap.getWidth(),
finalBitmap.getHeight());
paint.setAntiAlias(true);
paint.setFilterBitmap(true);
paint.setDither(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(Color.parseColor("#BAB399"));
canvas.drawCircle(finalBitmap.getWidth()/2 + 0.7f,
finalBitmap.getHeight()/2 + 0.7f,
finalBitmap.getWidth()/2 + 0.1f, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(finalBitmap, rect, rect, paint);
return output;
}
log:
05-24 12:33:45.838 29693-29693/com.showhow2.www.thetagoreproject D/AndroidRuntime: Shutting down VM
05-24 12:33:45.839 29693-29693/com.showhow2.www.thetagoreproject E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.showhow2.www.thetagoreproject, PID: 29693
java.lang.NullPointerException: Attempt to invoke virtual method 'android.graphics.Bitmap android.graphics.Bitmap.copy(android.graphics.Bitmap$Config, boolean)' on a null object reference
at com.showhow2.www.thetagoreproject.RoundedImageView.onDraw(RoundedImageView.java:38)
at android.view.View.draw(View.java:16184)
at android.view.View.updateDisplayListIfDirty(View.java:15180)
at android.view.View.draw(View.java:15954)
at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
at android.view.View.updateDisplayListIfDirty(View.java:15175)
at android.view.View.draw(View.java:15954)
at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
at android.view.View.draw(View.java:16187)
at android.widget.ScrollView.draw(ScrollView.java:1712)
at android.view.View.updateDisplayListIfDirty(View.java:15180)
at android.view.View.draw(View.java:15954)
at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
at android.view.View.updateDisplayListIfDirty(View.java:15175)
at android.view.View.draw(View.java:15954)
at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
at android.view.View.updateDisplayListIfDirty(View.java:15175)
at android.view.View.draw(View.java:15954)
at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
at android.view.View.draw(View.java:16187)
at com.android.internal.policy.PhoneWindow$DecorView.draw(PhoneWindow.java:2690)
at android.view.View.updateDisplayListIfDirty(View.java:15180)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:281)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:287)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:322)
at android.view.ViewRootImpl.draw(ViewRootImpl.java:2615)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2434)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2067)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:606)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
05-24 12:38:45.892 29693-29693/com.showhow2.www.thetagoreproject I/Process: Sending signal. PID: 29693 SIG: 9
Bitte fügen Crashlog Sie bekommen. –
@Stas Lelyuk angeschlossen – Mobo
warum nicht Picasso verwenden? das wird automatisch das Bild herunterladen und wird auf imageview setzen –