嗨,我现在正在申请家庭作业和墙。我想采取两个输入,如someone名称,然后发送电子邮件,然后显示一个感谢信息,其中包含他们的姓名和电子邮件。我有这个谢谢你的页面,当我点击它时,我无法按下任何按钮。我有这个代码,我没有出现错误。
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
public class SignupActivity extends ActionBarActivity {
TextView greetMessage;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_signup);
Bundle bundle = this.getIntent().getExtras();
if(null != bundle){
String name = bundle.getString("name");
String email = bundle.getString("email");
if(null != name && name != "" && email != "") {
greetMessage = (TextView)findViewById(R.id.textView1);
greetMessage.setText("Thank you " + name + "you can expect and email from us soon to
your email address at " + email);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.signup, 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);
}
}
和我的其他活动的其他代码
import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
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 ThankYouActivity extends ActionBarActivity implements OnClickListener {
EditText nameField;
EditText emailField;
Button submitButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_signup);
emailField = (EditText) findViewById(R.id.editText2);
nameField = (EditText) findViewById(R.id.editText1);
submitButton = (Button) findViewById(R.id.button1);
submitButton.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_enter, 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);
}
@Override
public void onClick(View v) {
String name = nameField.getText().toString();
String email = emailField.getText().toString();
if (null != name && name != "" && email != "") {
Intent intent = new Intent(this,ThankYouActivity.class);
intent.putExtra("name", name);
this.startActivity(intent);
}
}
}
提前感谢您的任何建议。
答案 0 :(得分:0)
您在两个活动中都有:
setContentView(R.layout.layout_signup);
将其更改为其他xml布局。
修改强> 您不会通过意图传递电子邮件,而不是传递名称:
intent.putExtra("name", name);
把这个:
intent.putExtra("emial", email);
它应该是这样的:
public void onClick(View v){
String name = nameField.getText().toString();
String email = emailField.getText().toString();
if (null != name && name != "" && email != "") {
Intent intent = new Intent(this,ThankYouActivity.class);
intent.putExtra("name", name);
intent.putExtra("emial", email);
this.startActivity(intent);
}
}
<强> EDIT2:强> 在onClick的4行中将'this'更改为getApplicationContext(),如下所示:(如果可以的话)
Intent intent = new Intent(getApplicationContext(),ThankYouActivity.class);
在最后一行删除'this',它应该如下所示:
startActivity(intent);
答案 1 :(得分:0)
好的,所以你稍微混淆了名字:P Becouse,SignupActivity指的是activity_thank_you,而ThankYouActivity指的是layout_signup
在你的SingupActivity中改变这个:
setContentView(R.layout.layout_signup); //WAS
setContentView(R.layout.activity_thank_you); //SHOULD BE
在您的SignupActivity中更改此内容:
setContentView(R.layout.layout_signup); //WAS
setContentView(R.layout.activity_thank_you); //SHOULD BE
在activity_thank_you中,您创建了TextView
,但未设置ID,请将其更改为:
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world"
android:id="@+id/randomName"/>
当您将其添加到textview时,请转到SignupActivity
并将其加入:
greetMessage = (TextView)findViewById(R.id.randomName);
另外,不要忘记Android Manifest中的更改名称。
在onClick方法中,在startActivty之前删除它,如下所示:
this.startActivity(intent); //WAS
startActivity(intent); //SHOULD BE