first of all change this line of code: mPagerAdapter = new ScreenSlidePager.ScreenSlidePagerAdapter(getSupportFragmentManager()); to this: mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager()); it seems you copied your adapter from another page change place you are defining your pager: private ViewPager mPager; above the onCreate 8 solved Determine why my android app crashes upon opening [duplicate]
Caused by: java.lang.NoSuchMethodException: <init> [class android.content.Context, interface android.util.AttributeSet] 01-19 10:43:19.400: E/AndroidRuntime(1482): at java.lang.Class.getConstructorOrMethod(Class.java:472) You are not providing all of the constructors required for a custom view. Specifically, add this constructor. Read the documentation and tutorials for how to use the attribute set: public JustifiedTextView(Context context, AttributeSet attrs){ super(context, attrs); this.setWebChromeClient(new WebChromeClient() { }); } 2 … Read more
You are accessing a null variable in line 111 in file MainActivity2.java . Check what you wrote there. From your code it seems that either labelDate is null or date is null. Verify you have values in them , you can also debug. In general, it seems best if you do some tutorial from developer.android.com … Read more
java.lang.NullPointerException at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:394) ArrayAdapter<Comment> adapter = new ArrayAdapter<Comment>(this, android.R.layout.simple_list_item_1, values); values has at least one null object in it, which you cannot have. You can read through the source code and see this happens here: T item = getItem(position); if (item instanceof CharSequence) { text.setText((CharSequence)item); } else { text.setText(item.toString()); // Line 394, when item is … Read more
I’m not sure why you’re defining a local variable b in your start() method since you’ve already defined one as a class member. The one you created in start() will be lost as soon as start() returns. Also: the member object you create will be instantiated long before onCreate() is called. Is there enough context … Read more