Android 基础标签

<TextView
            android:text="我乃哈哈哈哈哈哈哈学习Androd"
            android:textSize="25dp"
            android:textColor="@android:color/holo_blue_dark"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:singleLine="true"
            />

<TextView
            android:text="哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈啊哈哈啊哈哈哈哈哈哈"
            android:textSize="25dp"
            android:textColor="@android:color/holo_blue_dark"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:singleLine="true"
            android:ellipsize="marquee"
            android:focusable="true"
            android:focusableInTouchMode="true"
            android:marqueeRepeatLimit="1"

            />

  <TextView
                     android:text="QQ邮箱： 1344773678@qq.com    电话： 15116964938   网站:  www.baidu.com"
                     android:textSize="25dp"
                     android:textColor="@android:color/holo_blue_dark"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:autoLink="all"

                     />
   

                     <Button
                         android:text="这只是个按钮"
                         android:textColor="@android:color/holo_green_light"
                         android:textSize="30dp"
                         android:enabled="false"
                         android:drawableTop="@mipmap/ic_launcher"
                         android:drawableRight="@mipmap/ic_launcher"
                         android:drawableLeft="@mipmap/ic_launcher"
                         android:drawableBottom="@mipmap/ic_launcher"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
                         />


               <Button
                   android:text="er"
                   android:id="@+id/but01"
                   android:layout_width="wrap_content"
                   android:layout_height="wrap_content" />

               <Button
                   android:text="san"
                   android:id="@+id/but02"
                   android:layout_width="wrap_content"
                   android:layout_height="wrap_content" />

                 <TextView
                     android:id="@+id/tvshow"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content" />
         

  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_textview);

        View.OnClickListener click = new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int id = v.getId();
                switch (id) {
                    case R.id.but01:
                        tvshow = (TextView) findViewById(R.id.tvshow);
                        tvshow.setText("我来啦一号");
                        break;
                    case R.id.but02:
                        tvshow = (TextView) findViewById(R.id.tvshow);
                        tvshow.setText("我来啦二号");
                        break;
                }

            }
        };

        Button button = (Button) findViewById(R.id.but02);
        Button button2 = (Button) findViewById(R.id.but01);
        button.setOnClickListener(click);
        button2.setOnClickListener(click);

        // ATTENTION: This was auto-generated to implement the App Indexing API.
        // See https://g.co/AppIndexing/AndroidStudio for more information.
        client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
    }