/*
* Copyright (C) 2009 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.multires;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
public final class MultiRes extends Activity {
private int mCurrentPhotoIndex = 0;
private int[] mPhotoIds = new int[] { R.drawable.sample_0,
R.drawable.sample_1, R.drawable.sample_2, R.drawable.sample_3,
R.drawable.sample_4, R.drawable.sample_5, R.drawable.sample_6,
R.drawable.sample_7 };
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
showPhoto(mCurrentPhotoIndex);
// Handle clicks on the 'Next' button.
Button nextButton = (Button) findViewById(R.id.next_button);
nextButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
mCurrentPhotoIndex = (mCurrentPhotoIndex + 1)
% mPhotoIds.length;
showPhoto(mCurrentPhotoIndex);
}
});
}
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putInt("photo_index", mCurrentPhotoIndex);
super.onSaveInstanceState(outState);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
mCurrentPhotoIndex = savedInstanceState.getInt("photo_index");
showPhoto(mCurrentPhotoIndex);
super.onRestoreInstanceState(savedInstanceState);
}
private void showPhoto(int photoIndex) {
ImageView imageView = (ImageView) findViewById(R.id.image_view);
imageView.setImageResource(mPhotoIds[photoIndex]);
TextView statusText = (TextView) findViewById(R.id.status_text);
statusText.setText(String.format("%d/%d", photoIndex + 1,
mPhotoIds.length));
}
}
//
//res\layout\main.xml
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@drawable/background">
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="match_parent">
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/image_container"
android:background="@drawable/image_container">
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/image_view"
android:scaleType="fitCenter"/>
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|center_horizontal"
android:id="@+id/status_text"
android:textColor="@android:color/primary_text_dark"
android:textSize="16sp"
android:shadowDx="1.0"
android:shadowDy="1.0"
android:shadowRadius="1"
android:layout_margin="5dip"
android:shadowColor="@android:color/background_dark"/>
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:gravity="center">
android:text="@string/next_button"
android:id="@+id/next_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableLeft="@drawable/android"
android:textSize="24sp"/>
//
//res\layout-land\main.xml
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:background="@drawable/background">
android:layout_weight="1"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
android:background="@drawable/image_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/image_container">
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/image_view"
android:scaleType="fitCenter"/>
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|center_horizontal"
android:id="@+id/status_text"
android:textColor="@android:color/primary_text_dark"
android:textSize="16sp"
android:shadowDx="1.0"
android:shadowDy="1.0"
android:shadowRadius="1"
android:layout_margin="5dip"
android:shadowColor="@android:color/background_dark"/>
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_marginLeft="10dip"
android:gravity="top">
android:text="@string/next_button"
android:id="@+id/next_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableLeft="@drawable/android"
android:textSize="24sp"/>
//
//res\values\strings.xml
MultiRes
Next