联系人索引字母条

来源：互联网发布：linux lost found 编辑：程序博客网时间：2024/05/21 17:21

代码使用片段：

public class MainActivity extends Activity implements OnTouchingLetterChangedListener {    private LongitudinalSideBarView mLongitudinalSideBarView = null;    private TransverseSideBarView mTransverseSideBarView = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        TextView dialog = (TextView) findViewById(R.id.layout_pb_dialog);        mLongitudinalSideBarView = (LongitudinalSideBarView) findViewById(R.id.sidebar);        mLongitudinalSideBarView.setTextView(dialog);        mLongitudinalSideBarView.setOnTouchingLetterChangedListener(this);        TextView trans_dialog = (TextView) findViewById(R.id.trans_layout_pb_dialog);        mTransverseSideBarView = (TransverseSideBarView) findViewById(R.id.trans_sidebar);        mTransverseSideBarView.setTextView(trans_dialog);//      mTransverseSideBarView.setOnTouchingLetterChangedListener(this);    }    @Override    public void onTouchingLetterChanged(String s) {        // 根据触摸到的s选中Listview的项    }}

纵向视图：

public class LongitudinalSideBarView extends View {    private OnTouchingLetterChangedListener onTouchingLetterChangedListener;    public static String[] b = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q",            "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "#" };    private int choose = -1;//    private Paint paint = new Paint();    private TextView mTextDialog;    public void setTextView(TextView mTextDialog) {        this.mTextDialog = mTextDialog;    }    public LongitudinalSideBarView(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);    }    public LongitudinalSideBarView(Context context, AttributeSet attrs) {        super(context, attrs);    }    public LongitudinalSideBarView(Context context) {        super(context);    }    @Override    protected void onDraw(Canvas canvas) {        super.onDraw(canvas);        int height = getHeight();//        int width = getWidth(); //        float singleHeight = (height * 1f) / b.length;//        singleHeight = (height * 1f - singleHeight / 2) / b.length;        for (int i = 0; i < b.length; i++) {            paint.setColor(Color.rgb(23, 122, 216));            // paint.setColor(Color.WHITE);            paint.setTypeface(Typeface.DEFAULT_BOLD);            paint.setAntiAlias(true);            paint.setTextSize(16);            //            if (i == choose) {                paint.setColor(Color.parseColor("#c60000"));                paint.setFakeBoldText(true);            }            //            float xPos = width / 2 - paint.measureText(b[i]) / 2;            float yPos = singleHeight * i + singleHeight;            canvas.drawText(b[i], xPos, yPos, paint);            paint.reset();//        }    }    @Override    public boolean dispatchTouchEvent(MotionEvent event) {        final int action = event.getAction();        final float y = event.getY();//        final int oldChoose = choose;        final OnTouchingLetterChangedListener listener = onTouchingLetterChangedListener;        final int c = (int) (y / getHeight() * b.length);//        switch (action) {        case MotionEvent.ACTION_UP:            //setBackgroundResource(R.drawable.side_bg);            choose = -1;//            invalidate();            if (mTextDialog != null) {                mTextDialog.setVisibility(View.INVISIBLE);            }            break;        default:            //setBackgroundResource(R.drawable.side_bg);            if (oldChoose != c) {                if (c >= 0 && c < b.length) {                    if (listener != null) {                        listener.onTouchingLetterChanged(b[c]);                    }                    if (mTextDialog != null) {                        mTextDialog.setText(b[c]);                        mTextDialog.setVisibility(View.VISIBLE);                    }                    choose = c;                    invalidate();                }            }            break;        }        return true;    }    /**     *      *      * @param onTouchingLetterChangedListener     */    public void setOnTouchingLetterChangedListener(OnTouchingLetterChangedListener onTouchingLetterChangedListener) {        this.onTouchingLetterChangedListener = onTouchingLetterChangedListener;    }    /**     *      *      * @author coder     *      */    public interface OnTouchingLetterChangedListener {        public void onTouchingLetterChanged(String s);    }}

横向视图：

public class TransverseSideBarView extends View {    private OnTouchingLetterChangedListener onTouchingLetterChangedListener;    public static String[] b = { "#", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P",            "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z" };    private int choose = -1;//    private Paint paint = new Paint();    private TextView mTextDialog;    public void setTextView(TextView mTextDialog) {        this.mTextDialog = mTextDialog;    }    public TransverseSideBarView(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);    }    public TransverseSideBarView(Context context, AttributeSet attrs) {        super(context, attrs);    }    public TransverseSideBarView(Context context) {        super(context);    }    @Override    protected void onDraw(Canvas canvas) {        super.onDraw(canvas);        int height = getHeight();        int width = getWidth();        float singleWidth = (width * 1f) / b.length;        for (int i = 0; i < b.length; i++) {            paint.setColor(Color.WHITE);            paint.setTypeface(Typeface.DEFAULT_BOLD);            paint.setAntiAlias(true);            paint.setTextSize(32);            if (i == choose) {                paint.setColor(Color.parseColor("#FFEEE000"));                paint.setFakeBoldText(true);            }            float xPos = singleWidth * i;            float yPos = height / 2 + 16;// 加字体大小一半高度            canvas.drawText(b[i], xPos, yPos, paint);            paint.reset();        }    }    @Override    public boolean dispatchTouchEvent(MotionEvent event) {        final int action = event.getAction();        final float x = event.getX();//        final int oldChoose = choose;        final OnTouchingLetterChangedListener listener = onTouchingLetterChangedListener;        final int c = (int) (x / getWidth() * b.length);//        switch (action) {        case MotionEvent.ACTION_UP:            // setBackgroundResource(R.drawable.side_bg);            choose = -1;//            invalidate();            if (mTextDialog != null) {                mTextDialog.setVisibility(View.INVISIBLE);            }            break;        default:            // setBackgroundResource(R.drawable.side_bg);            if (oldChoose != c) {                if (c >= 0 && c < b.length) {                    if (listener != null) {                        listener.onTouchingLetterChanged(b[c]);                    }                    if (mTextDialog != null) {                        mTextDialog.setText(b[c]);                        mTextDialog.setVisibility(View.VISIBLE);                    }                    choose = c;                    invalidate();                }            }            break;        }        return true;    }    public void setOnTouchingLetterChangedListener(OnTouchingLetterChangedListener onTouchingLetterChangedListener) {        this.onTouchingLetterChangedListener = onTouchingLetterChangedListener;    }    public interface OnTouchingLetterChangedListener {        public void onTouchingLetterChanged(String s);    }}

XML应用：

  <com.asir.sidebarview.LongitudinalSideBarView        android:id="@+id/sidebar"        android:layout_width="33.0dip"        android:layout_height="match_parent"        android:layout_alignParentRight="true"        android:background="@drawable/side_bg"        android:visibility="visible" />    <TextView        android:id="@+id/layout_pb_dialog"        android:layout_width="80.0px"        android:layout_height="80.0px"        android:layout_centerInParent="true"        android:background="@drawable/show_head_toast_bg"        android:gravity="center"        android:textColor="#ffffffff"        android:textSize="30.0dip"        android:visibility="gone" />    <com.asir.sidebarview.TransverseSideBarView        android:id="@+id/trans_sidebar"        android:layout_width="match_parent"        android:layout_height="66dp"        android:layout_alignParentBottom="true"        android:layout_marginLeft="37.0px"        android:layout_marginRight="37.0px"        android:background="@drawable/trans_side_bg"        android:visibility="visible" />    <TextView        android:id="@+id/trans_layout_pb_dialog"        android:layout_width="80.0px"        android:layout_height="80.0px"        android:layout_centerInParent="true"        android:background="@drawable/spd_bt_word_bg"        android:gravity="center"        android:textColor="#ffffffff"        android:textSize="30.0dip"        android:visibility="gone" />

这里写图片描述

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