Вылет при старте программы

package com.example.myapplication;
 
import android.app.Activity;
import android.app.ActionBar;
import android.os.Bundle;
import android.text.TextWatcher;
import android.text.Editable;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import com.example.myapplication.R;
 
public class Tran extends Activity implements 
TextWatcher, View.OnFocusChangeListener {
   
   private EditText edit1;
   private EditText edit2;
   private View viewFocus;
   
 
@Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ActionBar actionBar = getActionBar();
      actionBar.setDisplayShowHomeEnabled(false);
      actionBar.setDisplayShowTitleEnabled(false); 
      actionBar.setDisplayShowCustomEnabled(true);
    actionBar.setCustomView(R.layout.custom_actionbar); 
   getWindow().requestFeature(Window.FEATURE_ACTION_BAR);keep
    setContentView(R.layout.activity_main); 
    this.initView();
   }
 
 
 
private void initView() {
   this.edit1 = (EditText)this.findViewById(R.id.ed_km); 
   this.edit1.setOnFocusChangeListener((View.OnFocusChangeListener)this);
   this.edit1.addTextChangedListener((TextWatcher)this);
   this.edit2 = (EditText)this.findViewById(R.id.ed_m);
   this.edit2.setOnFocusChangeListener((View.OnFocusChangeListener)this);
   this.edit2.addTextChangedListener((TextWatcher)this);
}
 
public void afterTextChanged(Editable editable) {
    if (this.viewFocus == null) return;
        {
          if (this.viewFocus.equals((Object)this.edit1)) {
         //code1
         edit2.setText("О да");
         return;
         } else {
             if (!this.viewFocus.equals((Object)this.edit2)) return;
         {
          //code2
          edit1.setText("Наканецта");
          return;
         }
        }  
       }
      }
  
   public void beforeTextChanged(CharSequence chuarSequence, int n, int n2, int n3) {}
      
   public void onTextChanged(CharSequence charSequence, int n, int n2, int n3) {}
      
      
   public void onFocusChange(View view, boolean bl) {
        if (!bl) return;
        {
            this.viewFocus = view;
       }
     }
 
  public void onClick(View v){
   edit1.setText("");
   edit2.setText("");
   }
   
  }