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# How to become a contributor and submit your own code | ||
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## Contributor License Agreements | ||
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We'd love to accept your sample apps and patches! Before we can take them, we | ||
have to jump a couple of legal hurdles. | ||
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Please fill out either the individual or corporate Contributor License Agreement (CLA). | ||
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* If you are an individual writing original source code and you're sure you | ||
own the intellectual property, then you'll need to sign an [individual CLA] | ||
(https://developers.google.com/open-source/cla/individual). | ||
* If you work for a company that wants to allow you to contribute your work, | ||
then you'll need to sign a [corporate CLA] | ||
(https://developers.google.com/open-source/cla/corporate). | ||
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Follow either of the two links above to access the appropriate CLA and | ||
instructions for how to sign and return it. Once we receive it, we'll be able to | ||
accept your pull requests. | ||
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## Contributing A Patch | ||
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1. Submit an issue describing your proposed change to the repo in question. | ||
1. The repo owner will respond to your issue promptly. | ||
1. If your proposed change is accepted, and you haven't already done so, sign a | ||
Contributor License Agreement (see details above). | ||
1. Fork the desired repo, develop and test your code changes. | ||
1. Ensure that your code adheres to the existing style in the sample to which | ||
you are contributing. Refer to the | ||
[Android Code Style Guide] | ||
(https://source.android.com/source/code-style.html) for the | ||
recommended coding standards for this organization. | ||
1. Ensure that your code has an appropriate set of unit tests which all pass. | ||
1. Submit a pull request. | ||
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buildscript { | ||
repositories { | ||
mavenCentral() | ||
} | ||
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dependencies { | ||
classpath 'com.android.tools.build:gradle:0.12.+' | ||
} | ||
} | ||
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apply plugin: 'android' | ||
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dependencies { | ||
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// Add the support lib that is appropriate for SDK 3 | ||
compile "com.android.support:support-v4:20.+" | ||
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} | ||
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// The sample build uses multiple directories to | ||
// keep boilerplate and common code separate from | ||
// the main sample code. | ||
List<String> dirs = [ | ||
'main', // main sample code; look here for the interesting stuff. | ||
'common', // components that are reused by multiple samples | ||
'template'] // boilerplate code that is generated by the sample template process | ||
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android { | ||
compileSdkVersion 19 | ||
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buildToolsVersion "20" | ||
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sourceSets { | ||
main { | ||
dirs.each { dir -> | ||
java.srcDirs "src/${dir}/java" | ||
res.srcDirs "src/${dir}/res" | ||
} | ||
} | ||
androidTest.setRoot('tests') | ||
androidTest.java.srcDirs = ['tests/src'] | ||
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} | ||
} | ||
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<!-- | ||
Copyright 2013 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. | ||
--> | ||
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<manifest xmlns:android="http://schemas.android.com/apk/res/android" | ||
package="com.example.android.customchoicelist" | ||
android:versionCode="1" | ||
android:versionName="1.0"> | ||
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<uses-sdk android:minSdkVersion="3" android:targetSdkVersion="17" /> | ||
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<application android:label="@string/app_name" | ||
android:icon="@drawable/ic_launcher" | ||
android:theme="@style/Theme.Sample" | ||
android:allowBackup="true"> | ||
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<activity android:name=".MainActivity" | ||
android:label="@string/app_name"> | ||
<intent-filter> | ||
<action android:name="android.intent.action.MAIN" /> | ||
<category android:name="android.intent.category.LAUNCHER" /> | ||
</intent-filter> | ||
</activity> | ||
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</application> | ||
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</manifest> |
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CustomChoiceListSample/src/main/java/com/example/android/common/logger/Log.java
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/* | ||
* Copyright (C) 2013 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.common.logger; | ||
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/** | ||
* Helper class for a list (or tree) of LoggerNodes. | ||
* | ||
* <p>When this is set as the head of the list, | ||
* an instance of it can function as a drop-in replacement for {@link android.util.Log}. | ||
* Most of the methods in this class server only to map a method call in Log to its equivalent | ||
* in LogNode.</p> | ||
*/ | ||
public class Log { | ||
// Grabbing the native values from Android's native logging facilities, | ||
// to make for easy migration and interop. | ||
public static final int NONE = -1; | ||
public static final int VERBOSE = android.util.Log.VERBOSE; | ||
public static final int DEBUG = android.util.Log.DEBUG; | ||
public static final int INFO = android.util.Log.INFO; | ||
public static final int WARN = android.util.Log.WARN; | ||
public static final int ERROR = android.util.Log.ERROR; | ||
public static final int ASSERT = android.util.Log.ASSERT; | ||
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// Stores the beginning of the LogNode topology. | ||
private static LogNode mLogNode; | ||
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/** | ||
* Returns the next LogNode in the linked list. | ||
*/ | ||
public static LogNode getLogNode() { | ||
return mLogNode; | ||
} | ||
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/** | ||
* Sets the LogNode data will be sent to. | ||
*/ | ||
public static void setLogNode(LogNode node) { | ||
mLogNode = node; | ||
} | ||
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/** | ||
* Instructs the LogNode to print the log data provided. Other LogNodes can | ||
* be chained to the end of the LogNode as desired. | ||
* | ||
* @param priority Log level of the data being logged. Verbose, Error, etc. | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
* @param tr If an exception was thrown, this can be sent along for the logging facilities | ||
* to extract and print useful information. | ||
*/ | ||
public static void println(int priority, String tag, String msg, Throwable tr) { | ||
if (mLogNode != null) { | ||
mLogNode.println(priority, tag, msg, tr); | ||
} | ||
} | ||
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/** | ||
* Instructs the LogNode to print the log data provided. Other LogNodes can | ||
* be chained to the end of the LogNode as desired. | ||
* | ||
* @param priority Log level of the data being logged. Verbose, Error, etc. | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. The actual message to be logged. | ||
*/ | ||
public static void println(int priority, String tag, String msg) { | ||
println(priority, tag, msg, null); | ||
} | ||
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/** | ||
* Prints a message at VERBOSE priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
* @param tr If an exception was thrown, this can be sent along for the logging facilities | ||
* to extract and print useful information. | ||
*/ | ||
public static void v(String tag, String msg, Throwable tr) { | ||
println(VERBOSE, tag, msg, tr); | ||
} | ||
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/** | ||
* Prints a message at VERBOSE priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
*/ | ||
public static void v(String tag, String msg) { | ||
v(tag, msg, null); | ||
} | ||
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/** | ||
* Prints a message at DEBUG priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
* @param tr If an exception was thrown, this can be sent along for the logging facilities | ||
* to extract and print useful information. | ||
*/ | ||
public static void d(String tag, String msg, Throwable tr) { | ||
println(DEBUG, tag, msg, tr); | ||
} | ||
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/** | ||
* Prints a message at DEBUG priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
*/ | ||
public static void d(String tag, String msg) { | ||
d(tag, msg, null); | ||
} | ||
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/** | ||
* Prints a message at INFO priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
* @param tr If an exception was thrown, this can be sent along for the logging facilities | ||
* to extract and print useful information. | ||
*/ | ||
public static void i(String tag, String msg, Throwable tr) { | ||
println(INFO, tag, msg, tr); | ||
} | ||
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/** | ||
* Prints a message at INFO priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
*/ | ||
public static void i(String tag, String msg) { | ||
i(tag, msg, null); | ||
} | ||
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/** | ||
* Prints a message at WARN priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
* @param tr If an exception was thrown, this can be sent along for the logging facilities | ||
* to extract and print useful information. | ||
*/ | ||
public static void w(String tag, String msg, Throwable tr) { | ||
println(WARN, tag, msg, tr); | ||
} | ||
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/** | ||
* Prints a message at WARN priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
*/ | ||
public static void w(String tag, String msg) { | ||
w(tag, msg, null); | ||
} | ||
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/** | ||
* Prints a message at WARN priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param tr If an exception was thrown, this can be sent along for the logging facilities | ||
* to extract and print useful information. | ||
*/ | ||
public static void w(String tag, Throwable tr) { | ||
w(tag, null, tr); | ||
} | ||
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/** | ||
* Prints a message at ERROR priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
* @param tr If an exception was thrown, this can be sent along for the logging facilities | ||
* to extract and print useful information. | ||
*/ | ||
public static void e(String tag, String msg, Throwable tr) { | ||
println(ERROR, tag, msg, tr); | ||
} | ||
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/** | ||
* Prints a message at ERROR priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
*/ | ||
public static void e(String tag, String msg) { | ||
e(tag, msg, null); | ||
} | ||
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/** | ||
* Prints a message at ASSERT priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
* @param tr If an exception was thrown, this can be sent along for the logging facilities | ||
* to extract and print useful information. | ||
*/ | ||
public static void wtf(String tag, String msg, Throwable tr) { | ||
println(ASSERT, tag, msg, tr); | ||
} | ||
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/** | ||
* Prints a message at ASSERT priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param msg The actual message to be logged. | ||
*/ | ||
public static void wtf(String tag, String msg) { | ||
wtf(tag, msg, null); | ||
} | ||
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/** | ||
* Prints a message at ASSERT priority. | ||
* | ||
* @param tag Tag for for the log data. Can be used to organize log statements. | ||
* @param tr If an exception was thrown, this can be sent along for the logging facilities | ||
* to extract and print useful information. | ||
*/ | ||
public static void wtf(String tag, Throwable tr) { | ||
wtf(tag, null, tr); | ||
} | ||
} |
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