如何以垂直方式自动滚动至文本结尾?此代码在一段时间后停止并且未达到结束。而且我想在点击按钮后开始滚动直到结束。一些帮助就足够了。垂直自动滚动文本
activity_main.xml中
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="@+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textview1"
android:layout_alignParentRight="true"
android:text="OK" />
<ScrollView
android:id="@+id/scrollView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true" >
<TextView
android:text="@string/random_text"
android:id="@+id/textview1"
android:ellipsize="marquee"
android:marqueeRepeatLimit ="marquee_forever"
android:focusable="true"
android:scrollbars="vertical"
android:focusableInTouchMode="true"
android:maxLines="4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</ScrollView>
</RelativeLayout>
MainActivity.java
package com.bhabani2077.autoscroll;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.text.method.ScrollingMovementMethod;
import android.view.View;
import android.view.animation.LinearInterpolator;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ScrollView;
import android.widget.Scroller;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
Toolbar mToolbar;
// EditText mEditText;
Button mButton;
TextView mTextView;
Scroller mScroller;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mToolbar= (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
// mEditText= (EditText) findViewById(R.id.editText1);
mButton= (Button) findViewById(R.id.button1);
mTextView= (TextView) findViewById(R.id.textview1);
mTextView.setSelected(true);
mTextView.setMovementMethod(new ScrollingMovementMethod());
mScroller=new Scroller(MainActivity.this,new LinearInterpolator());
mTextView.setScroller(mScroller);
mScroller.startScroll(0,0,0,500,5000);
mButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//if (mEditText.getText().length()>0){
// mTextView.append(mEditText.getText()+"\n");
// mEditText.setText("");
}
});
}
}
检查这个https://github.com/ayltai/Android-Lib-VerticalMarqueeTextView可能是有用的 –