I am stuck and facing problem with intent-filter in android!
In my app when user taps on buy product button user will be redirected to internet browser (chrome etc) and after payment, user should come back to app, but occurred NullPinterException in onCreate Activity where I used TextView,ImageView.
I don't know why this problem happend, Please help!
ActivityPayment.java
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_payment);
Utils.toast("onCreate");
initUI();
Bundle extras = getIntent().getExtras();
if (extras != null) {
final ModelVoucher v = (ModelVoucher) extras.get("voucher");
Picasso.with(G.currentActivity)
.load(G.URL + v.imageUrl)
.placeholder(R.mipmap.img_holder)
.error(R.mipmap.img_holder)
.into(imgVoucher);
txtTitle.setText(v.title);
txtUnitPrice.setText(v.payPrice);
txtPayableAmount.setText((v.payPrice * count));
List<String> list = new ArrayList<>();
list.add("1");
list.add("2");
list.add("3");
SpinnerAdapter adapter = new SpinnerAdapter(G.context, R.layout.spinner_item, list);
spnCount.setAdapter(adapter);
spnCount.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
String selected = spnCount.getSelectedItem().toString();
count = Integer.valueOf(selected.trim());
txtPayableAmount.setText(v.payPrice * count );
}
@Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});
lyFinalizeBuy.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
new RequestPayment(new IRequest() {
@Override
public void onCompeletd(final ModelResult result) {
G.handler.post(new Runnable() {
@Override
public void run() {
if (result.success) {
Intent paymentPage = new Intent(Intent.ACTION_VIEW);
paymentPage.setData(Uri.parse(G.URL + "/payment/pay/" + result.paymentHash));
startActivity(paymentPage);
} else {
Utils.toast(result.message, true);
}
}
});
}
@Override
public void onFailed(int status) {
}
}).beforePay(v.id + "", count + "");
}
});
}
new RequestProfile(new IRequest() {
@Override
public void onCompeletd(final ModelResult result) {
G.handler.post(new Runnable() {
@Override
public void run() {
if (result.success) {
txtBalance.setText(result.user.balance);
} else {
Utils.toast(result.message);
}
}
});
}
@Override
public void onFailed(int status) {
}
}).getBaseInfo();
}
Stack Trace
> 12-04 12:56:26.507 12350-12350/ir.myapplication E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{ir.myapplication/ir.myapplication.ActivityPayment}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2351)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2403)
at android.app.ActivityThread.access$600(ActivityThread.java:165)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1373)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5391)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at ir.myapplication.ActivityPayment.onCreate(ActivityPayment.java:56)
at android.app.Activity.performCreate(Activity.java:5122)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1150)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2315)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2403)
at android.app.ActivityThread.access$600(ActivityThread.java:165)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1373)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5391)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)
56 line that happend exception:
Picasso.with(G.currentActivity)
.load(G.URL + v.imageUrl)
.placeholder(R.mipmap.img_holder)
.error(R.mipmap.img_holder)
.into(imgVoucher);
Can you please use below code ?
There is issue with Null Pointer.
How to send object:
ClassName details = new ClassName();
Intent i = new Intent(context, EditActivity.class);
i.putExtra("Editing", details);
startActivity(i);
How to receive object:
ClassName model = (ClassName) getIntent().getSerializableExtra("Editing");
Your model class must be implemented as Serializable.
Class ClassName implements Serializable {
}
I hope your issue would resolve.