学习使用Material Design控件（一）

android {  compileSdkVersion 21  buildToolsVersion ”21.1.2”  defaultConfig {    applicationId ”materia.aswifter.com.materialexample”    minSdkVersion 15    targetSdkVersion 21    versionCode 1    versionName ”1.0”  }  buildTypes {    release {      minifyEnabled false      proguardFiles getDefaultProguardFile('proguard-android.txt'), ‘proguard-rules.pro'    }  }}dependencies {  compile fileTree(dir: ‘libs', include: [‘*.jar'])  compile 'com.android.support:design:22.2.0'  compile 'com.android.support:recyclerview-v7:22.0.+'}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  xmlns:app="http://schemas.android.com/apk/res-auto"  android:layout_width="match_parent"  android:layout_height="match_parent">  <android.support.v7.widget.Toolbar    android:id="@+id/toolbar"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:layout_alignParentTop="true"    android:background="?attr/colorPrimaryDark">  </android.support.v7.widget.Toolbar>  <android.support.v7.widget.RecyclerView    android:id="@+id/recyclerView"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:layout_below="@+id/toolbar"    android:scrollbars="none" /></RelativeLayout>

setContentView(R.layout.activity_main);Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);setSupportActionBar(toolbar);

mRecyclerView = (RecyclerView) findViewById(R.id.recyclerView); // use this setting to improve performance if you know that changes // in content do not change the layout size of the RecyclerView mRecyclerView.setHasFixedSize(true); // use a linear layout manager mLayoutManager = new LinearLayoutManager(this); mRecyclerView.setLayoutManager(mLayoutManager); // specify an adapter (see also next example) myDataset = new String[]{"JAVA", "Objective-C", "C", "C++", "Swift",     "GO", "JavaScript", "Python", "Ruby", "HTML", "SQL"}; mAdapter = new MyAdapter(myDataset); mRecyclerView.setAdapter(mAdapter);

public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {      // each data item is just a string in this case      public TextView mTextView;      public ViewHolder(View v) {        super(v);        mTextView = (TextView) v.findViewById(R.id.textView);        v.setOnClickListener(this);      }      @Override      public void onClick(View view) {        Snackbar.make(view, mTextView.getText(), Snackbar.LENGTH_SHORT).show();      }    }