Par*_*ari 8 java xml android android-layout
我正在尝试使用以下代码滚动我的textview:
TextView text = (TextView) findViewById(R.id.textView12);
text.setMovementMethod(ScrollingMovementMethod.getInstance());
int height = getResources().getDrawable(R.drawable.pic_ground_pranic).getIntrinsicHeight();
text.setLayoutParams(new FrameLayout.LayoutParams(LayoutParams.FILL_PARENT, height));
text.setText("As part of an Android App I am building a button set.For performance reasons and to keep the code simpler, the Android system uses pixels as the standard unit for expressing dimension or coordinate values. That means that the dimensions of a view are always expressed in the code using pixels, but always based on the current screen density. For instance, if myView.getWidth() returns 10, the view is 10 pixels wide on the current screen, but on a device with a higher density screen, the value returned might be 15. If you use pixel values in your application code to work with bitmaps that are not pre-scaled for the current screen density, you might need to scale the pixel values that you use in your code If you need to control exactly how your application will look on various screen configurations, adjust your layouts and bitmap drawables in configuration-specific resource directories. For example, consider an icon that you want to display on medium and high density screens. Simply create your icon at two different sizes (for instance 100x100 for medium density and 150x150 for high density) and put the two variations in the appropriate directories, using the proper qualifiers: For instance, suppose a device has a WVGA high-density screen, which is 480x800 and about the same size as a traditional HVGA screen, but it's running an application that has disabled pre-scaling. In this case, the system will lie to the application when it queries for screen dimensions, and report 320x533 (the approximate mdpi translation for the screen density). Then, when the application does drawing operations, such as invalidating the rectangle from (10,10) to (100, 100), the system transforms the coordinates by scaling them the appropriate amount, and actually invalidate the region (15,15) to (150, 150). This discrepancy may cause unexpected behavior if your application directly manipulates the scaled bitmap, but this is considered a reasonable trade-off to keep the performance of applications as good as possible. If you encounter this situation, read Based on the density of the current screen, the system uses any size- or density-specific resources from your application and displays them without scaling. If resources are not available in the correct density, the system loads the default resources and scales them up or down as needed to match the current screen's density. The system assumes that default resources (those from a directory without configuration qualifiers) are designed for the baseline screen density (mdpi), unless they are loaded from a density-specific resource directory. Pre-scaling is, thus, what the system does when resizing a bitmap to the appropriate size for the current screen density. to match the un-scaled bitmap source. The buttons are part of a nested set of LinearLayouts.The question then is: How to resize the layout.I have tried several suggested techniques, and none come close to working. Here is a subset of the XML that builds the button set:");
一切正常,但我的文本视图不能顺利滚动.我以为我必须将我的Textview放在Scrollview中,但这也无效.
是否因为我正在调整我的textview而发生？
请提供此问题的任何解决方案.我已经花了很多时间在这上面.
我的xml布局文件是:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/relativeLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ScrollView
android:id="@+id/scrollView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="@+id/include1"
android:layout_centerHorizontal="true"
android:background="@android:color/white"
android:scrollbarStyle="insideInset" >
<TableLayout
android:id="@+id/tableLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:padding="5dp" >
<TableRow
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<RelativeLayout
android:id="@+id/relativeLayout2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0" >
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_marginLeft="5dp"
android:layout_marginTop="14dp"
android:text="Text 1"
android:textColor="@android:color/black" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView2"
android:layout_marginLeft="25dp"
android:layout_toRightOf="@+id/textView2"
android:text="Text 2"
android:textColor="@android:color/black" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView3"
android:layout_marginLeft="25dp"
android:layout_toRightOf="@+id/textView3"
android:text="Text 3"
android:textColor="@android:color/black" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/textView4"
android:layout_marginLeft="25dp"
android:layout_toRightOf="@+id/textView4"
android:text="Text 4"
android:textColor="@android:color/black" />
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/textView2"
android:layout_marginLeft="5dp"
android:layout_marginTop="3dp"
android:textColor="@android:color/black" />
<TextView
android:id="@+id/textView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView3"
android:layout_below="@+id/textView3"
android:layout_marginTop="3dp"
android:textColor="@android:color/black" />
<TextView
android:id="@+id/textView8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView4"
android:layout_below="@+id/textView4"
android:layout_marginTop="3dp"
android:textColor="@android:color/black" />
<TextView
android:id="@+id/textView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView5"
android:layout_below="@+id/textView5"
android:layout_marginTop="3dp"
android:textColor="@android:color/black" />
</RelativeLayout>
</TableRow>
<TableRow
android:id="@+id/tableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<RelativeLayout
android:id="@+id/relativeLayout3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0" >
<SeekBar
android:id="@+id/seekBar1"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:soundEffectsEnabled="true" />
<TextView
android:id="@+id/textView10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:text="Volume 1"
android:textColor="@android:color/black" />
</RelativeLayout>
</TableRow>
<TableRow
android:id="@+id/tableRow3"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<RelativeLayout
android:id="@+id/relativeLayout4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0" >
<SeekBar
android:id="@+id/seekBar2"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:soundEffectsEnabled="true" />
<TextView
android:id="@+id/textView11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:text="Volume 2"
android:textColor="@android:color/black" />
</RelativeLayout>
</TableRow>
<TableRow
android:id="@+id/tableRow4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:baselineAligned="false" >
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:orientation="vertical" >
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="Save Volumes" />
</LinearLayout>
</TableRow>
<TableRow
android:id="@+id/tableRow5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<FrameLayout
android:id="@+id/frameLayout3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:orientation="vertical" >
<TextView
android:id="@+id/textView12"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center_vertical|center_horizontal"
android:gravity="top|left"
android:scrollbars="vertical"
android:visibility="visible" />
</FrameLayout>
</TableRow>
<TableRow
android:id="@+id/tableRow8"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<FrameLayout
android:id="@+id/frameLayout2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right|center" />
<TextView
android:id="@+id/textView13"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right|center"
android:layout_marginRight="30dp"
android:clickable="true"
android:text="Detailed Instruction" />
</FrameLayout>
</TableRow>
</TableLayout>
</ScrollView>
</RelativeLayout>
提前致谢!
就我而言，我只需要将TextView放入ScrollView中即可。滚动变得非常流畅，并且用户每次都过着幸福快乐的生活！
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
>
<TextView
android:id="@+id/textview_about"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textIsSelectable="true"
android:textSize="20dp" />
</ScrollView>