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zxing實現圖片拉近并掃碼效果，類似微信掃碼。代碼可運行
代碼片段和文件信息
package?com.alvin.commonlibrary;
import?android.content.Context;
import?android.support.test.InstrumentationRegistry;
import?android.support.test.runner.AndroidJUnit4;
import?org.junit.Test;
import?org.junit.runner.RunWith;
import?static?org.junit.Assert.*;
/**
?*?Instrumented?test?which?will?execute?on?an?Android?device.
?*
?*?@see?Testing?documentation
?*/
@RunWith（AndroidJUnit4.class）
public?class?ExampleInstrumentedTest?{
????@Test
????public?void?useAppContext（）?throws?Exception?{
????????//?Context?of?the?app?under?test.
????????Context?appContext?=?InstrumentationRegistry.getTargetContext（）;
????????assertEquals（“com.alvin.commonlibrary“?appContext.getPackageName（））;
????}
}
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\
?????文件?????????716??2019-03-04?06:53??CommonLibrary-master\.gitignore
?????文件????????1670??2019-03-04?06:53??CommonLibrary-master\README.md
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\
?????文件???????????7??2019-03-04?06:53??CommonLibrary-master\app\.gitignore
?????文件?????????897??2019-03-04?06:53??CommonLibrary-master\app\build.gradle
?????文件?????????751??2019-03-04?06:53??CommonLibrary-master\app\proguard-rules.pro
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\androidTest\
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\androidTest\java\
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\androidTest\java\com\
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\androidTest\java\com\alvin\
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\androidTest\java\com\alvin\commonlibrary\
?????文件?????????747??2019-03-04?06:53??CommonLibrary-master\app\src\androidTest\java\com\alvin\commonlibrary\ExampleInstrumentedTest.java
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\
?????文件?????????717??2019-03-04?06:53??CommonLibrary-master\app\src\main\AndroidManifest.xm
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\java\
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\java\com\
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\java\com\alvin\
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\java\com\alvin\commonlibrary\
?????文件????????1033??2019-03-04?06:53??CommonLibrary-master\app\src\main\java\com\alvin\commonlibrary\MainActivity.java
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\drawable-v24\
?????文件????????1880??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\drawable-v24\ic_launcher_foreground.xm
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\drawable\
?????文件????????5606??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\drawable\ic_launcher_background.xm
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\layout\
?????文件?????????673??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\layout\activity_main.xm
?????目錄???????????0??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\mipmap-anydpi-v26\
?????文件?????????272??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\mipmap-anydpi-v26\ic_launcher.xm
?????文件?????????272??2019-03-04?06:53??CommonLibrary-master\app\src\main\res\mipmap-anydpi-v26\ic_launcher_round.xm
............此處省略371個文件信息
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