android stuido 常见错误整理

Error:DependencyczgBaiduGuangGao:RecyclerviewDemo:unspecified on project app resolves to an APKarchive which is not supported as a compilation dependency. File:C:\Users\Administrator\AndroidStudioProjects\czgBaiduGuangGao\RecyclerviewDemo\build\outputs\apk\RecyclerviewDemo-release-unsigned.apk

错误原因

1. apply plugin: 'com.android.application'

2. 修改为

3. apply plugin: 'com.android.library'

Error:Library projects cannot setapplicationId. applicationId is set to 'czg.czgrecyclerview' in default config.

错误原因

错误原因

升级到 Android studio 正式版1.0之后，lib工程里面不能在 defaultConfig 里面显示设置 applicationId，直接使用 AndroidManifest.xml 里面的定义即可

错误解决

.gradle文件中将 applicationId 配置删除掉

defaultConfig {    applicationId "czg.czgrecyclerview"    minSdkVersion 15    targetSdkVersion 23    versionCode 1    versionName "1.0"}
修改为：
defaultConfig {    minSdkVersion 15    targetSdkVersion 23    versionCode 1    versionName "1.0"}

最近在写一个Android的library module ,打算把以前写的项目包含成为module，switch case语句老是报错，一开始我还以为是library module的R文件没有生成，又是clean project又是rebuild project.都没用，句没有报错，原来是我把问题定位错了，问题不是R文件没有生成，而是case R.styleable.***这句有问题

switch (id){    case R.id.action_add:        adapter.addData(1);        break;    case R.id.action_delete:        adapter.deleteData(1);        break;    case R.id.action_listview:        recyclerView.setLayoutManager(new LinearLayoutManager(this));        break;    case R.id.action_gridview:        recyclerView.setLayoutManager(new GridLayoutManager(this,3));        break;    case R.id.action_hor_gridview:        recyclerView.setLayoutManager(new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.HORIZONTAL));        break;    case R.id.action_staggered:        Intent i=new Intent(this,StaggerActivity.class);        startActivity(i);        break;}

改为如下可以

if (id == R.id.action_add) {    adapter.addData(1);} else if (id == R.id.action_delete) {    adapter.deleteData(1);} else if (id == R.id.action_listview) {    recyclerView.setLayoutManager(new LinearLayoutManager(this));} else if (id == R.id.action_gridview) {    recyclerView.setLayoutManager(new GridLayoutManager(this, 3));} else if (id == R.id.action_hor_gridview) {    recyclerView.setLayoutManager(new StaggeredGridLayoutManager(3, StaggeredGridLayoutManager.HORIZONTAL));} else if (id == R.id.action_staggered) {    Intent i = new Intent(this, StaggerActivity.class);    startActivity(i);}