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Add the FixedGridLayout sample code.

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This time with an Android.mk

P.S. Hi from Google I/O!
This commit is contained in:
Joe Onorato
2009-05-28 16:31:56 -07:00
parent 1cab4f589b
commit a42091afb7
8 changed files with 218 additions and 0 deletions
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12
samples/FixedGridLayout/Android.mk Normal file
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LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE_TAGS := samples
LOCAL_SRC_FILES := $(call all-subdir-java-files)
LOCAL_PACKAGE_NAME := FixedGridLayout
LOCAL_SDK_VERSION := current
include $(BUILD_PACKAGE)

15
samples/FixedGridLayout/AndroidManifest.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.fixedgridlayout"
android:versionCode="1"
android:versionName="1.0">
<application android:label="@string/app_name">
<activity android:name=".FixedGridLayoutTest"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

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samples/FixedGridLayout/res/drawable/bugdroid.png Normal file
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42
samples/FixedGridLayout/res/layout/main.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<com.example.android.fixedgridlayout.FixedGridLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res/com.example.android.fixedgridlayout"
android:id="@+id/grid"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
app:cellWidth="80dp"
app:cellHeight="100dp"
>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/bugdroid"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/bugdroid"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/bugdroid"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/bugdroid"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/bugdroid"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/bugdroid"
/>
</com.example.android.fixedgridlayout.FixedGridLayout>

7
samples/FixedGridLayout/res/values/attrs.xml Normal file
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<resources>
<declare-styleable name="FixedGridLayout">
<attr name="cellWidth" format="dimension" />
<attr name="cellHeight" format="dimension" />
</declare-styleable>
</resources>

4
samples/FixedGridLayout/res/values/strings.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">FixedGridLayoutTest</string>
</resources>

119
samples/FixedGridLayout/src/com/example/android/fixedgridlayout/FixedGridLayout.java Normal file
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/*
* 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.fixedgridlayout;
import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.util.SparseIntArray;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewDebug;
/**
* A layout that arranges its children in a grid. The size of the
* cells is set by the {@link #setCellSize} method and the
* android:cell_width and android:cell_height attributes in XML.
* The number of rows and columns is determined at runtime. Each
* cell contains exactly one view, and they flow in the natural
* child order (the order in which they were added, or the index
* in {@link #addViewAt}. Views can not span multiple cells.
*/
public class FixedGridLayout extends ViewGroup {
int mCellWidth;
int mCellHeight;
public FixedGridLayout(Context context) {
super(context);
}
public FixedGridLayout(Context context, AttributeSet attrs) {
super(context, attrs);
// Read the resource attributes.
TypedArray a = context.obtainStyledAttributes(
attrs, R.styleable.FixedGridLayout);
mCellWidth = a.getDimensionPixelSize(
R.styleable.FixedGridLayout_cellWidth, -1);
mCellHeight = a.getDimensionPixelSize(
R.styleable.FixedGridLayout_cellHeight, -1);
a.recycle();
}
public void setCellWidth(int px) {
mCellWidth = px;
requestLayout();
}
public void setCellHeight(int px) {
mCellHeight = px;
requestLayout();
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int cellWidthSpec = MeasureSpec.makeMeasureSpec(mCellWidth,
MeasureSpec.AT_MOST);
int cellHeightSpec = MeasureSpec.makeMeasureSpec(mCellHeight,
MeasureSpec.AT_MOST);
int count = getChildCount();
for (int index=0; index<count; index++) {
final View child = getChildAt(index);
child.measure(cellWidthSpec, cellHeightSpec);
}
// Use the size our parents gave us
setMeasuredDimension(resolveSize(mCellWidth*count, widthMeasureSpec),
resolveSize(mCellHeight*count, heightMeasureSpec));
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
int cellWidth = mCellWidth;
int cellHeight = mCellHeight;
int columns = (r - l) / cellWidth;
if (columns < 0) {
columns = 1;
}
int x = 0;
int y = 0;
int i = 0;
int count = getChildCount();
for (int index=0; index<count; index++) {
final View child = getChildAt(index);
int w = child.getMeasuredWidth();
int h = child.getMeasuredHeight();
int left = x + ((cellWidth-w)/2);
int top = y + ((cellHeight-h)/2);
child.layout(left, top, left+w, top+h);
if (i >= (columns-1)) {
// advance to next row
i = 0;
x = 0;
y += cellHeight;
} else {
i++;
x += cellWidth;
}
}
}
}

19
samples/FixedGridLayout/src/com/example/android/fixedgridlayout/FixedGridLayoutTest.java Normal file
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package com.example.android.fixedgridlayout;
import android.app.Activity;
import android.os.Bundle;
public class FixedGridLayoutTest extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
FixedGridLayout grid = (FixedGridLayout)findViewById(R.id.grid);
grid.setCellWidth(80);
grid.setCellHeight(80);
}
}