Demonstrates the using a list view in transcript mode : ListActivity « UI « Android






  1. Android
  2. UI
  3. ListActivity

Demonstrates the using a list view in transcript mode

   


/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.apis.view;

import android.app.ListActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnKeyListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;

import com.example.android.apis.R;

import java.util.ArrayList;

/**
 * Demonstrates the using a list view in transcript mode
 *
 */
public class List12 extends ListActivity implements OnClickListener, OnKeyListener {

    private EditText mUserText;
    
    private ArrayAdapter<String> mAdapter;
    
    private ArrayList<String> mStrings = new ArrayList<String>();
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        setContentView(R.layout.list_12);
        
        mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mStrings);
        
        setListAdapter(mAdapter);
        
        mUserText = (EditText) findViewById(R.id.userText);

        mUserText.setOnClickListener(this);
        mUserText.setOnKeyListener(this);
    }

    public void onClick(View v) {
        sendText();
    }

    private void sendText() {
        String text = mUserText.getText().toString();
        mAdapter.add(text);
        mUserText.setText(null);
    }

    public boolean onKey(View v, int keyCode, KeyEvent event) {
        if (event.getAction() == KeyEvent.ACTION_DOWN) {
            switch (keyCode) {
                case KeyEvent.KEYCODE_DPAD_CENTER:
                case KeyEvent.KEYCODE_ENTER:
                    sendText();
                    return true;
            }
        }
        return false;
    }
    

}

//layout/list_12.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2007 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
          http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent" 
    android:layout_height="match_parent"
    android:paddingLeft="8dip"
    android:paddingRight="8dip">
    
    <ListView android:id="@android:id/list"
        android:layout_width="match_parent" 
        android:layout_height="0dip"
        android:layout_weight="1"
        android:stackFromBottom="true"
        android:transcriptMode="normal"/>
        
    <EditText android:id="@+id/userText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
        
</LinearLayout>








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