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();
      }
    }