andriod 动态设置TextView 和 RelativeLayou 高度

XML布局
            <RelativeLayout
                android:id="@+id/rlay_meeting_contact_context"
                android:layout_width="match_parent"
                android:layout_height="44dp"
                android:clickable="false"
                android:focusable="false" >

                <TextView
                    android:id="@+id/tv_test"
                    style="@style/B4_Font_white"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:layout_alignParentTop="true"
                    android:layout_toRightOf="@+id/TextView07"
                    android:duplicateParentState="true"
                    android:gravity="left|center"
                    android:singleLine="true"
                    android:text="@string/accept_invite_this_troop" />

            </RelativeLayout>

注：android:gravity="left|center"//表示文本从左的中间开始，不然展开后文本会在中显开始显示

JAVA

定义：

private int mContextHeght = 0;
private Boolean mLookContextflag = false;

private RelativeLayout mrlayMeetingContactContext;
mrlayMeetingContactContext = (RelativeLayout) findViewById(R.id.rlay_meeting_contact_context);

private TextView  mtvTest;

mtvTest= (TextView) findViewById(R.id.tv_test);

利用timer计时器获取：LineCount

注：getLineCount注意：需要待对象展开后才能正确获取，不然获取到的是0

    TimerTask task = new TimerTask() {
        public void run() {
            Message message = new Message();
            message.what = 1;
            handler.sendMessage(message);
        }
    };

    final Handler handler = new Handler() {
        public void handleMessage(Message msg) {
            switch (msg.what) {
            case 1:
                android.util.Log.e("Timer", "Timer");
                 update();
                break;
            }
            super.handleMessage(msg);
        }

    };

    private void update() {
        int linecount = mtvTest.getLineCount();

        Log.i("tv.getLineCount()", mtvTest.getHeight() + "");
        if ((!mLookContextflag) || (linecount < 2)) {

            mLookContextflag = true;
            mtvTest.setEllipsize(null); // 展开
            mtvTest.setSingleLine(false);
        } else if ((mLookContextflag) || (linecount > 1)) {
            mLookContextflag = false;
            if (mtvTestt.getLineCount() > 1) {
                int iHeght = mtvTest.getLineCount()
                        * mtvTest.getLineHeight();

                if (iHeght > mContextHeght) {
                    android.view.ViewGroup.LayoutParams pp = mrlayMeetingContactContext
                            .getLayoutParams();
                    pp.height = iHeght;
                    mrlayMeetingContactContext.setLayoutParams(pp);
                    mMeetingContactContext.setHeight(iHeght);
                    //timer用完结束掉
                    if (mTimer != null) {
                        mTimer.cancel();
                        mTimer = null;
                    }
                }

            }

        }

调用：

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch (v.getId()) {
        case R.id.meeting_contact_context:
            if (mContextHeght == 0) {
                mContextHeght = mrlayMeetingContactContext.getHeight();
                if (mTimer == null) {
                    mTimer = new Timer(false);
                    mTimer.schedule(task, 10, 100);
                }
            }
}