android记事本的demo在网上一搜一大堆，但是大神写的demo往往功能太多导致新手难以着手，很难啃得动；而一些新手写的demo又往往是东拼西凑，代码很多都是copy的别人的，直接放在项目里面用，也不知道代码有什么作用。往往代码特别丑，重复性的代码也比较多。笔者近期学到此处，自己理解之后也还是打算写个demo供新手学习一下。代码说不上优雅，但在笔者看来已经尽力去让人容易理解了。
大家可以自己下载下来看看
资源文件列表
Memo/.gitignore , 127
Memo/.gradle/3.3/taskArtifacts/fileHashes.bin , 144383
Memo/.gradle/3.3/taskArtifacts/fileSnapshots.bin , 1174116
Memo/.gradle/3.3/taskArtifacts/taskArtifacts.bin , 78660
Memo/.gradle/3.3/taskArtifacts/taskArtifacts.lock , 17
Memo/.gradle/3.3/tasks/_app_compileDebugJavaWithJavac/localClassSetAnalysis/localClassSetAnalysis.bin , 27531
Memo/.gradle/3.3/tasks/_app_compileDebugJavaWithJavac/localClassSetAnalysis/localClassSetAnalysis.lock , 17
Memo/.gradle/3.3/tasks/_app_compileDebugJavaWithJavac/localJarClasspathSnapshot/localJarClasspathSnapshot.bin , 20079
Memo/.gradle/3.3/tasks/_app_compileDebugJavaWithJavac/localJarClasspathSnapshot/localJarClasspathSnapshot.lock , 17
Memo/.idea/compiler.xml , 686
Memo/.idea/copyright/profiles_settings.xml , 76
Memo/.idea/gradle.xml , 626
Memo/.idea/libraries/animated_vector_drawable_25_3_1.xml , 600
Memo/.idea/libraries/appcompat_v7_25_3_1.xml , 564
Memo/.idea/libraries/constraint_layout_1_0_2.xml , 410
Memo/.idea/libraries/constraint_layout_solver_1_0_2.xml , 336
Memo/.idea/libraries/espresso_core_2_2_2.xml , 578
Memo/.idea/libraries/espresso_idling_resource_2_2_2.xml , 611
Memo/.idea/libraries/exposed_instrumentation_api_publish_0_5.xml , 629
Memo/.idea/libraries/hamcrest_core_1_3.xml , 526
Memo/.idea/libraries/hamcrest_integration_1_3.xml , 354
Memo/.idea/libraries/hamcrest_library_1_3.xml , 342
Memo/.idea/libraries/javawriter_2_1_1.xml , 330
Memo/.idea/libraries/javax_annotation_api_1_2.xml , 358
Memo/.idea/libraries/javax_inject_1.xml , 324
Memo/.idea/libraries/jsr305_2_0_1.xml , 330
Memo/.idea/libraries/junit_4_12.xml , 477
Memo/.idea/libraries/rules_0_5.xml , 539
Memo/.idea/libraries/runner_0_5.xml , 542
Memo/.idea/libraries/support_annotations_25_3_1.xml , 493
Memo/.idea/libraries/support_compat_25_3_1.xml , 570
Memo/.idea/libraries/support_core_ui_25_3_1.xml , 573
Memo/.idea/libraries/support_core_utils_25_3_1.xml , 582
Memo/.idea/libraries/support_fragment_25_3_1.xml , 576
Memo/.idea/libraries/support_media_compat_25_3_1.xml , 588
Memo/.idea/libraries/support_v4_25_3_1.xml , 404
Memo/.idea/libraries/support_vector_drawable_25_3_1.xml , 597
Memo/.idea/misc.xml , 2226
Memo/.idea/modules.xml , 345
Memo/.idea/runConfigurations.xml , 564
Memo/.idea/workspace.xml , 160755
Memo/app/.gitignore , 8
Memo/app/app.iml , 10878
Memo/app/build/generated/source/buildConfig/androidTest/debug/com/example/administrator/memo/test/BuildConfig.java , 477
Memo/app/build/generated/source/buildConfig/debug/com/example/administrator/memo/BuildConfig.java , 467
Memo/app/build/generated/source/r/androidTest/debug/android/app/R.java , 241
Memo/app/build/generated/source/r/androidTest/debug/android/support/test/espresso/idling/R.java , 266
Memo/app/build/generated/source/r/androidTest/debug/android/support/test/espresso/R.java , 362
Memo/app/build/generated/source/r/androidTest/debug/android/support/test/R.java , 250
Memo/app/build/generated/source/r/androidTest/debug/android/support/test/rule/R.java , 358
Memo/app/build/generated/source/r/androidTest/debug/com/example/administrator/memo/test/R.java , 410
Memo/app/build/generated/source/r/debug/android/support/compat/R.java , 252
Memo/app/build/generated/source/r/debug/android/support/constraint/R.java , 15438
Memo/app/build/generated/source/r/debug/android/support/coreui/R.java , 252
Memo/app/build/generated/source/r/debug/android/support/coreutils/R.java , 255
Memo/app/build/generated/source/r/debug/android/support/fragment/R.java , 254
Memo/app/build/generated/source/r/debug/android/support/graphics/drawable/animated/R.java , 272
Memo/app/build/generated/source/r/debug/android/support/graphics/drawable/R.java , 263
Memo/app/build/generated/source/r/debug/android/support/mediacompat/R.java , 257
Memo/app/build/generated/source/r/debug/android/support/v4/R.java , 248
Memo/app/build/generated/source/r/debug/android/support/v7/appcompat/R.java , 110550
Memo/app/build/generated/source/r/debug/com/example/administrator/memo/R.java , 571718
Memo/app/build/intermediates/blame/res/androidTest/debug/multi/values.json , 922
Memo/app/build/intermediates/blame/res/debug/multi/color.json , 2
Memo/app/build/intermediates/blame/res/debug/multi/values-af.json , 15581
Memo/app/build/intermediates/blame/res/debug/multi/values-am.json , 15575
Memo/app/build/intermediates/blame/res/debug/multi/values-ar.json , 15583
Memo/app/build/intermediates/blame/res/debug/multi/values-az-rAZ.json , 15013
Memo/app/build/intermediates/blame/res/debug/multi/values-b+sr+Latn.json , 15893
Memo/app/build/intermediates/blame/res/debug/multi/values-be-rBY.json , 15763
Memo/app/build/intermediates/blame/res/debug/multi/values-bg.json , 15587
Memo/app/build/intermediates/blame/res/debug/multi/values-bn-rBD.json , 15767
Memo/app/build/intermediates/blame/res/debug/multi/values-bs-rBA.json , 15763
Memo/app/build/intermediates/blame/res/debug/multi/values-ca.json , 15587
Memo/app/build/intermediates/blame/res/debug/multi/values-cs.json , 15583
Memo/app/build/intermediates/blame/res/debug/multi/values-da.json , 15579
Memo/app/build/intermediates/blame/res/debug/multi/values-de.json , 15583
Memo/app/build/intermediates/blame/res/debug/multi/values-el.json , 15589
Memo/app/build/intermediates/blame/res/debug/multi/values-en-rAU.json , 15755
Memo/app/build/intermediates/blame/res/debug/multi/values-en-rGB.json , 15755
Memo/app/build/intermediates/blame/res/debug/multi/values-en-rIN.json , 15755
Memo/app/build/intermediates/blame/res/debug/multi/values-es-rUS.json , 15765
Memo/app/build/intermediates/blame/res/debug/multi/values-es.json , 15585
Memo/app/build/intermediates/blame/res/debug/multi/values-et-rEE.json , 15765
Memo/app/build/intermediates/blame/res/debug/multi/values-eu-rES.json , 15761
Memo/app/build/intermediates/blame/res/debug/multi/values-fa.json , 15585
Memo/app/build/intermediates/blame/res/debug/multi/values-fi.json , 15579
Memo/app/build/intermediates/blame/res/debug/multi/values-fr-rCA.json , 15765
Memo/app/build/intermediates/blame/res/debug/multi/values-fr.json , 15589
Memo/app/build/intermediates/blame/res/debug/multi/values-gl-rES.json , 15763
Memo/app/build/intermediates/blame/res/debug/multi/values-gu-rIN.json , 15759
Memo/app/build/intermediates/blame/res/debug/multi/values-h720dp-v13.json , 955
Memo/app/build/intermediates/blame/res/debug/multi/values-hdpi-v4.json , 1015
Memo/app/build/intermediates/blame/res/debug/multi/values-hi.json , 15585
Memo/app/build/intermediates/blame/res/debug/multi/values-hr.json , 15583
Memo/app/build/intermediates/blame/res/debug/multi/values-hu.json , 15589
Memo/app/build/intermediates/blame/res/debug/multi/values-hy-rAM.json , 15757
Memo/app/build/intermediates/blame/res/debug/multi/values-in.json , 15585
Memo/app/build/intermediates/blame/res/debug/multi/values-is-rIS.json , 15753
Memo/app/build/intermediates/blame/res/debug/multi/values-it.json , 15581
Memo/app/build/intermediates/blame/res/debug/multi/values-iw.json , 15577
Memo/app/build/intermediates/blame/res/debug/multi/values-ja.json , 15571
Memo/app/build/intermediates/blame/res/debug/multi/values-ka-rGE.json , 15761
Memo/app/build/intermediates/blame/res/debug/multi/values-kk-rKZ.json , 15759
Memo/app/build/intermediates/blame/res/debug/multi/values-km-rKH.json , 15757
Memo/app/build/intermediates/blame/res/debug/multi/values-kn-rIN.json , 15763
Memo/app/build/intermediates/blame/res/debug/multi/values-ko.json , 15567
Memo/app/build/intermediates/blame/res/debug/multi/values-ky-rKG.json , 15759
Memo/app/build/intermediates/blame/res/debug/multi/values-land.json , 3127
Memo/app/build/intermediates/blame/res/debug/multi/values-large-v4.json , 6873
Memo/app/build/intermediates/blame/res/debug/multi/values-ldltr-v21.json , 953
Memo/app/build/intermediates/blame/res/debug/multi/values-lo-rLA.json , 15755
Memo/app/build/intermediates/blame/res/debug/multi/values-lt.json , 15589
Memo/app/build/intermediates/blame/res/debug/multi/values-lv.json , 15587
Memo/app/build/intermediates/blame/res/debug/multi/values-mk-rMK.json , 14273
Memo/app/build/intermediates/blame/res/debug/multi/values-ml-rIN.json , 15763
Memo/app/build/intermediates/blame/res/debug/multi/values-mn-rMN.json , 15757
Memo/app/build/intermediates/blame/res/debug/multi/values-mr-rIN.json , 15763
Memo/app/build/intermediates/blame/res/debug/multi/values-ms-rMY.json , 15761
Memo/app/build/intermediates/blame/res/debug/multi/values-my-rMM.json , 15765
Memo/app/build/intermediates/blame/res/debug/multi/values-nb.json , 15575
Memo/app/build/intermediates/blame/res/debug/multi/values-ne-rNP.json , 15767
Memo/app/build/intermediates/blame/res/debug/multi/values-night-v8.json , 5391
Memo/app/build/intermediates/blame/res/debug/multi/values-nl.json , 15589
Memo/app/build/intermediates/blame/res/debug/multi/values-pa-rIN.json , 15755
Memo/app/build/intermediates/blame/res/debug/multi/values-pl.json , 15585
Memo/app/build/intermediates/blame/res/debug/multi/values-port.json , 931
Memo/app/build/intermediates/blame/res/debug/multi/values-pt-rBR.json , 15765
Memo/app/build/intermediates/blame/res/debug/multi/values-pt-rPT.json , 15765
Memo/app/build/intermediates/blame/res/debug/multi/values-pt.json , 15589
Memo/app/build/intermediates/blame/res/debug/multi/values-ro.json , 15589
Memo/app/build/intermediates/blame/res/debug/multi/values-ru.json , 15587
Memo/app/build/intermediates/blame/res/debug/multi/values-si-rLK.json , 15761
Memo/app/build/intermediates/blame/res/debug/multi/values-sk.json , 15581
Memo/app/build/intermediates/blame/res/debug/multi/values-sl.json , 15585
Memo/app/build/intermediates/blame/res/debug/multi/values-sq-rAL.json , 15761
Memo/app/build/intermediates/blame/res/debug/multi/values-sr.json , 15585
Memo/app/build/intermediates/blame/res/debug/multi/values-sv.json , 15583
Memo/app/build/intermediates/blame/res/debug/multi/values-sw.json , 15581
Memo/app/build/intermediates/blame/res/debug/multi/values-sw600dp-v13.json , 6181
Memo/app/build/intermediates/blame/res/debug/multi/values-ta-rIN.json , 15763
Memo/app/build/intermediates/blame/res/debug/multi/values-te-rIN.json , 15765
Memo/app/build/intermediates/blame/res/debug/multi/values-th.json , 15581
Memo/app/build/intermediates/blame/res/debug/multi/values-tl.json , 15591
Memo/app/build/intermediates/blame/res/debug/multi/values-tr.json , 15581
Memo/app/build/intermediates/blame/res/debug/multi/values-uk.json , 15583
Memo/app/build/intermediates/blame/res/debug/multi/values-ur-rPK.json , 15759
Memo/app/build/intermediates/blame/res/debug/multi/values-uz-rUZ.json , 15763
Memo/app/build/intermediates/blame/res/debug/multi/values-v11.json , 19195
Memo/app/build/intermediates/blame/res/debug/multi/values-v12.json , 3263
Memo/app/build/intermediates/blame/res/debug/multi/values-v13.json , 927
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