我的应用程序说它已不幸停止工作（android 应用程序）

Question

这是第一个屏幕的代码，我已经为两个屏幕使用了所有导入语句。我有一个条件语句，用于检查 editText 框或 ratingBar 是否为空。

public class BasicDetails extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.basic_details_screen);

        TextView textClass = (TextView)findViewById(R.id.textClass);
        TextView textSchool = (TextView)findViewById(R.id.textSchool);
        TextView textPhoto = (TextView)findViewById(R.id.textPhoto);
        TextView textabtYear = (TextView)findViewById(R.id.textabtYear);

        final EditText editClass = (EditText)findViewById(R.id.editClass);
        final EditText editSchool = (EditText)findViewById(R.id.editSchool);
        final EditText abtyear = (EditText)findViewById(R.id.abtYear);

        //Button buttonPhoto = (Button)findViewById(R.id.buttonPhoto);
        Button buttonBnext = (Button)findViewById(R.id.buttonBnext);

        buttonBnext.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // Performs action on click
                if ((editClass.getText().length() != 0) && (editSchool.getText().length() != 0) && (abtyear.getText().length() != 0)) {
                    Intent intent = new Intent(BasicDetails.this, PortfolioDetails.class);
                    startActivity(intent);
                    //opens the portfolio details class

                } else {
                    Toast.makeText(BasicDetails.this, "Please enter all the details!!!", Toast.LENGTH_LONG).show();
                }
            }
        });

    }
}

这是下一个屏幕的代码。所以基本上有一个将你从一个屏幕带到另一个屏幕的意图，但我在我的模拟器上收到一条错误消息 "My app(or GoPort)has unfortunately stopped working"

public class PortfolioDetails extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.porfolio_details_screen);

        TextView textAchievements = (TextView)findViewById(R.id.textAchievements);
        TextView textProgress = (TextView)findViewById(R.id.textProgress);
        TextView textFeedback = (TextView)findViewById(R.id.textFeedback);

        final EditText editAchievements = (EditText)findViewById(R.id.editAchievements);
        final EditText editFeedback = (EditText)findViewById(R.id.editFeedback);

        final RatingBar ratingBar = (RatingBar)findViewById(R.id.ratingBar);

        Button buttonCnext = (Button)findViewById(R.id.buttonCNext);

        buttonCnext.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // Performs action on click

                if ((editAchievements.getText().length() != 0) && (editFeedback.getText().length() != 0)) {

                    ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
                        public void onRatingChanged(RatingBar ratingBar, float rating,
                                                    boolean fromUser) {
                            // place intent for new activity

                            Intent intent = new Intent(PortfolioDetails.this, SlamDetails.class);
                            startActivity(intent);
                            //opens the portfolio details class

                        }
                    });
                } else { 
                    Toast.makeText(PortfolioDetails.this, "Please enter all the details!!!", Toast.LENGTH_LONG).show();
                }
            }
        });

    }
}

我在我的日志中得到了这个：

Answer 1

是的，我解决了这个问题....基本上意图没有问题

我的应用程序说它已不幸停止工作（android 应用程序）

My app says that it has unfortunately stopped working(android app)

android

toast

android-intent

android-edittext

ratingbar