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我在這裏給出的代碼。當我在genymotion運行它，它只是停止工作。請幫忙 。 我沒有看到在logcat的任何顯示也。它仍然是空白，模擬器只顯示一個錯誤，就是「unfortulately，SharedprefrencEexample已經採空的工作以及應用程序甚至不開始。所以我不得到的可能是什麼在此代碼中的錯誤的任何線索。 在這裏，我已經使用了參考創作一開始，我認爲這可能是錯誤。所以請不要看到代碼和幫助我。 感謝。不幸的應用程序已經停止，機器人
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>
獲取logcat連接並找出錯誤是什麼。 – javanut13