不幸的应用程序已经停止，机器人

问题描述：

我在这里给出的代码。当我在genymotion运行它，它只是停止工作。请帮忙。我没有看到在logcat的任何显示也。它仍然是空白，模拟器只显示一个错误，就是“unfortulately，SharedprefrencEexample已经采空的工作以及应用程序甚至不开始。所以我不得到的可能是什么在此代码中的错误的任何线索。在这里，我已经使用了参考创作一开始，我认为这可能是错误。所以请不要看到代码和帮助我。感谢。不幸的应用程序已经停止，机器人

Main_Activity

package com.example.sharedprefrenceexample; 

import android.app.Activity; 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 

public class MainActivity extends Activity { 

EditText name,phone,email; 
Button submit; 
Intent intent; 
SharedPreferences sharedPreferences; 
SharedPreferences.Editor editor; 

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

    name=(EditText) findViewById(R.id.editText1); 
    phone=(EditText) findViewById(R.id.editText2); 
    email=(EditText) findViewById(R.id.editText3); 
    submit=(Button) findViewById(R.id.button1); 

    submit.setText("@string/button_name_activity_one"); 
    name.setHint("name"); 
    phone.setHint("phone"); 
    email.setHint("email id"); 

    sharedPreferences=getSharedPreferences("@string/database_name", MODE_PRIVATE); 
    editor=sharedPreferences.edit(); 

    submit.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View arg0) { 
      // TODO Auto-generated method stub 
      editor.putString("name", name.getText().toString()); 
      editor.putString("phone", phone.getText().toString()); 

      editor.commit(); 

      intent=new Intent(MainActivity.this,Secondactivity.class); 
      intent.putExtra("email", email.getText().toString()); 

      startActivity(intent); 
     } 
    }); 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 
    if (id == R.id.action_settings) { 
     return true; 
    } 
    return super.onOptionsItemSelected(item); 
} 
}

activity_main.xml中

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:paddingBottom="@dimen/activity_vertical_margin" 
android:paddingLeft="@dimen/activity_horizontal_margin" 
android:paddingRight="@dimen/activity_horizontal_margin" 
android:paddingTop="@dimen/activity_vertical_margin" 
tools:context="com.example.sharedprefrenceexample.MainActivity" > 

<EditText 
    android:id="@+id/editText1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentTop="true" 
    android:ems="10" > 

    <requestFocus /> 
</EditText> 

<EditText 
    android:id="@+id/editText2" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentLeft="true" 
    android:layout_below="@+id/editText1" 
    android:ems="10" 
    android:inputType="numberPassword" /> 

<EditText 
    android:id="@+id/editText3" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignLeft="@+id/editText2" 
    android:layout_below="@+id/editText2" 
    android:ems="10" 
    android:inputType="textEmailAddress" /> 

<Button 
    android:id="@+id/button1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentBottom="true" 
    android:layout_alignParentRight="true" 
    android:text="@string/button_name_activity_one" /> 

</RelativeLayout>

secondactivity

package com.example.sharedprefrenceexample; 

import android.app.Activity; 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.widget.TextView; 

public class Secondactivity extends Activity { 

TextView result; 
SharedPreferences sharedPreferences; 
Intent intent; 

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

    result=(TextView) findViewById(R.id.textView1); 

    sharedPreferences=getSharedPreferences("database", MODE_PRIVATE); 
    String res = null; 
    res=res+sharedPreferences.getString("name", "no name"); 
    res=res+sharedPreferences.getString("phone", "no phone"); 

    intent=getIntent(); 

    res=res+intent.getStringExtra("email"); 

    result.setText(res); 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.secondactivity, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 
    if (id == R.id.action_settings) { 
     return true; 
    } 
    return super.onOptionsItemSelected(item); 
} 
}

activity_secondactivity.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:paddingBottom="@dimen/activity_vertical_margin" 
android:paddingLeft="@dimen/activity_horizontal_margin" 
android:paddingRight="@dimen/activity_horizontal_margin" 
android:paddingTop="@dimen/activity_vertical_margin" 
tools:context="com.example.sharedprefrenceexample.Secondactivity" > 

<TextView 
    android:id="@+id/textView1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentTop="true" 
    android:text="Large Text" 
    android:textAppearance="?android:attr/textAppearanceLarge" /> 

</RelativeLayout>

获取logcat连接并找出错误是什么。 – javanut13

答

submit.setText("@string/button_name_activity_one"); 
// (...) 
sharedPreferences=getSharedPreferences("@string/database_name", MODE_PRIVATE);

这句法仅在XML有效。在Java代码中，要使用字符串引用，您应该使用

submit.setText(R.string.button_name_activity_one);

因此修复这些字符串引用，它应该可以工作。

不幸的应用程序已经停止，机器人

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