listView长按事件内修改ListView对象内容 listviewlongClick 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 用startActivityForResult()跳转获取值就行了啊 不太明白楼主的意思,你要是第一次会修改了,那就修改数据源后,adapter.notifyDataSetChanged() 每次都是这样 我现在是在同一个Activity内,只是弹出一个对话框,要怎么写代码呢? 源代码帮你写好了 你自己看看package app.example.test0926;import android.os.Bundle;import android.app.Activity;import android.app.AlertDialog;import android.graphics.Color;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.widget.AdapterView;import android.widget.AdapterView.OnItemLongClickListener;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.EditText;import android.widget.ListView;import android.widget.TextView;public class MainActivity extends Activity { private ListView lvShow; private AlertDialog dialog; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); lvShow = (ListView) findViewById(R.id.lvShow); String[] arr = { "李四", "小猪", "店小二" }; ArrayAdapter<String> Adap1 = new ArrayAdapter<String>(this, R.layout.test_list, arr); lvShow.setAdapter(Adap1);// 设置ListView的显示 lvShow.setOnItemLongClickListener(new OnItemLongClickListener() { @Override public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { setAlertDialog(view); dialog.show(); return false; } }); } private void setAlertDialog(final View view) { LayoutInflater factory = LayoutInflater.from(getApplicationContext()); // 引入一个外部布局 View contview = factory.inflate(R.layout.test_dialog, null); contview.setBackgroundColor(Color.BLACK);// 设置该外部布局的背景 final EditText edit = (EditText) contview .findViewById(R.id.edit_dialog);// 找到该外部布局对应的EditText控件 Button btOK = (Button) contview.findViewById(R.id.btOK_dialog); btOK.setOnClickListener(new OnClickListener() {// 设置按钮的点击事件 @Override public void onClick(View v) { ((TextView) view).setText(edit.getText().toString()); dialog.dismiss(); } }); dialog = new AlertDialog.Builder(MainActivity.this).setView(contview) .create(); }} 以下是对应的三个布局文件<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=".MainActivity" > <ListView android:id="@+id/lvShow" android:layout_width="match_parent" android:layout_height="wrap_content" /></RelativeLayout> <?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_horizontal" android:orientation="vertical" > <EditText android:id="@+id/edit_dialog" android:layout_width="match_parent" android:layout_height="wrap_content" android:textSize="28sp" /> <Button android:id="@+id/btOK_dialog" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="确定" /></LinearLayout> addPreferencesFromResource 过期问题 ListView怎么添加RadioGroup 按钮的闪烁 父窗体框架问题 如何重启system server? 适合android开发的手机型号 PC与Android的UDP通信 大神们过来看看 求Springmvc+ibatis返回modelAndView,并且是html页面求成型demo Android Can't convert value at index 7 to dimension: type=0x1 android socket创建失败 求问一下啊。怎么才能实现一个可以涂鸦的相册。
package app.example.test0926;import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;public class MainActivity extends Activity {
private ListView lvShow;
private AlertDialog dialog; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lvShow = (ListView) findViewById(R.id.lvShow);
String[] arr = { "李四", "小猪", "店小二" };
ArrayAdapter<String> Adap1 = new ArrayAdapter<String>(this,
R.layout.test_list, arr);
lvShow.setAdapter(Adap1);// 设置ListView的显示
lvShow.setOnItemLongClickListener(new OnItemLongClickListener() { @Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
int position, long id) {
setAlertDialog(view);
dialog.show();
return false;
}
});
} private void setAlertDialog(final View view) {
LayoutInflater factory = LayoutInflater.from(getApplicationContext());
// 引入一个外部布局
View contview = factory.inflate(R.layout.test_dialog, null);
contview.setBackgroundColor(Color.BLACK);// 设置该外部布局的背景
final EditText edit = (EditText) contview
.findViewById(R.id.edit_dialog);// 找到该外部布局对应的EditText控件
Button btOK = (Button) contview.findViewById(R.id.btOK_dialog);
btOK.setOnClickListener(new OnClickListener() {// 设置按钮的点击事件 @Override
public void onClick(View v) {
((TextView) view).setText(edit.getText().toString());
dialog.dismiss();
}
});
dialog = new AlertDialog.Builder(MainActivity.this).setView(contview)
.create();
}
}
<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=".MainActivity" > <ListView
android:id="@+id/lvShow"
android:layout_width="match_parent"
android:layout_height="wrap_content" /></RelativeLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical" > <EditText
android:id="@+id/edit_dialog"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="28sp" /> <Button
android:id="@+id/btOK_dialog"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="确定" /></LinearLayout>