嗨,大家我需要帮助我有一个列表中的联系人的应用程序,我们可以选择,我想在列表视图中选择de值,并将其发送到名为View_2的第二个活动中.xml我把代码放在最后(道歉我的英语我是法语)。 我知道我必须使用PutExtra和GetExtra,但我需要使用get(position)方法获取值,但我不知道如何。如何获得listview值并发送其他活动
这里是我的mainactivity.java
package com.example.messagegroupe2;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
public class MainActivity extends Activity {
private String[] mStrings = {
"Thomas", "Audrey", "Pierre", "Paul", "Jacques",
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_multiple_choice, mStrings);
ListView listView = (ListView) findViewById(R.id.listview);
listView.setAdapter(adapter);
final Button okButton = (Button) findViewById(R.id.Mybutton);
okButton.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, View_2.class);
intent.putExtra(mStrings[position],);
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);
}
}
她是我的第一个布局activity_main.xml中
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center"
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.ue236_grpE.messagegroupe.MainActivity"
android:background="#2ECC71" >
<LinearLayout android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ListView
android:id="@+id/listview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="100dp"
android:orientation="horizontal"
android:scrollbarStyle="insideOverlay"
android:choiceMode="multipleChoice" />
</LinearLayout>
<Button
android:id="@+id/Mybutton"
android:layout_width="100dp"
android:layout_height="50dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="350dp"
android:text="@string/value_button"
android:background="#3498db"
android:textColor="#FFFFFF" />
后,我有另一种观点,我想要获得列表视图的值并将其设置在TextView中的这个视图中:
<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:background="#2ECC71"
android:gravity="center"
android:orientation="vertical"
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.ue236_grpE.messagegroupe.MainActivity" >
<Button
android:id="@+id/button_valid"
android:layout_width="100dp"
android:layout_height="50dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="300dp"
android:layout_marginRight="10dp"
android:text="@string/valid_button"
android:background="#3498db"
android:textColor="#FFFFFF" />
<Button
android:id="@+id/button_cancel"
android:layout_width="100dp"
android:layout_height="50dp"
android:layout_marginTop="300dp"
android:layout_toRightOf="@id/button_valid"
android:text="@string/cancel_button"
android:background="#3498db"
android:textColor="#FFFFFF" />
<TextView
android:id="@+id/textView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextView" />
谢谢zouzou我尝试 – sidi 2014-12-06 20:51:45
你能解释我更多吗? – sidi 2014-12-06 21:17:40
@sidi看到我的编辑,它应该看起来像这样(未经测试) – 2014-12-06 21:22:52