如何在 textview 中设置文本并将其格式化为代码？ （安卓 Java）

Question

So the question is this. I'm writing the app and I want to show part of "java code" in TextView, so when I set Text in TextView it looks like a simple text.

Is it possible to show the "code" like code with all tag color, etc?

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import br.tiagohm.codeview.Language;
import br.tiagohm.codeview.Theme;
import io.github.kbiakov.codeview.CodeView;


/**
 * A simple {@link Fragment} subclass.
 */
public class FragmentActivityTop extends Fragment implements br.tiagohm.codeview.CodeView.OnHighlightListener {
    CodeView mCodeView;
int tag=0;
    public FragmentActivityTop() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        //CodeProcessor.init(getContext());
        View v =inflater.inflate(R.layout.activity_fragment_top, container, false);

        //CodeView codeView = (CodeView) v.findViewById(R.id.code_viewjava);

        String code = "   @Override\n" +
                "    public View onCreateView(LayoutInflater inflater, ViewGroup container,\n" +
                "                             Bundle savedInstanceState) {\n" +
                "        // Inflate the layout for this fragment\n" +
                "        View v = inflater.inflate(R.layout.fragment_xml, container, false);\n" +
                "\n" +
                "        WebView webView = (WebView)v.findViewById(R.id.webfragxml);";


        mCodeView = (CodeView)v.findViewById(R.id.codeView);

        mCodeView.setOnHighlightListener(this)
                .setOnHighlightListener(this)
                .setTheme(Theme.AGATE)
                .setCode(code)
                .setLanguage(Language.JAVA)
                .setWrapLine(true)
                .setFontSize(14)
                .setZoomEnabled(true)
                .setShowLineNumber(true)
                .setStartLineNumber(9000)
                .apply();

        return v;
    }


    @Override
    public void onStartCodeHighlight() {

    }

    @Override
    public void onFinishCodeHighlight() {

    }

    @Override
    public void onLanguageDetected(Language language, int i) {

    }

    @Override
    public void onFontSizeChanged(int i) {

    }

    @Override
    public void onLineClicked(int i, String s) {

    }
}

This is my Fragment code when I trying to do this: mCodeView.setOnHighlightListener(this)

setOnHightkightListener paint are in red.

08-19 18:30:37.308 17929-17929/tj.horun.las.learnandroidstudio D/AndroidRuntime: Shutting down VM


                                                                             --------- beginning of crash

08-19 18:30:37.314 17929-17929/tj.horun.las.learnandroidstudio E/AndroidRuntime: FATAL EXCEPTION: main Process: tj.horun.las.learnandroidstudio, PID: 17929 android.view.InflateException: Binary XML file line #8: Binary XML file line #8: Error inflating class io.github.kbiakov.codeview.CodeView Caused by: android.view.InflateException: Binary XML file line #8: Error inflating class io.github.kbiakov.codeview.CodeView Caused by: java.lang.ClassNotFoundException: Didn't find class "io.github.kbiakov.codeview.CodeView" on path: DexPathList[[zip file "/data/app/tj.horun.las.learnandroidstudio-1/base.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_dependencies_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_slice_0_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_slice_1_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_slice_2_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split _lib_slice_3_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_slice_4_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_slice_5_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_slice_6_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_slice_7_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_slice_8_apk.apk", zip file "/data/app/tj.horun.las.learnandroidstudio-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/tj.horun.las.learnandroidstudio-1/lib/arm64, /system/lib64, /vendor/lib64]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) at java.lang.ClassLoader.loadClass(ClassLoader.java:380) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) at android.view.LayoutInflater.createView(LayoutInflater.java:609) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:787) at android.view.LayoutInflater.createViewFro mTag(LayoutInflater.java:727) at android.view.LayoutInflater.rInflate(LayoutInflater.java:858) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:821) at android.view.LayoutInflater.inflate(LayoutInflater.java:518) at android.view.LayoutInflater.inflate(LayoutInflater.java:426) at tj.horun.las.learnandroidstudio.LayoutFragment.onCreateView(LayoutFragment.java:28) at android.support.v4.app.Fragment.performCreateView(Fragment.java:2239) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1332) at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1574) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1641) at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:794) at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2415) at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2200) at android.support .v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2153) at android.support.v4.app.FragmentManagerImpl.execSingleAction(FragmentManager.java:2034) at android.support.v4.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:651) at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:143) at android.support.v4.view.ViewPager.populate(ViewPager.java:1239) at android.support.v4.view.ViewPager.populate(ViewPager.java:1087) at android.support.v4.view.ViewPager$3.run(ViewPager.java:270) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:874) at android.view.Choreographer.doCallbacks(Choreographer.java:686) at android.view.Choreographer.doFrame(Choreographer.java:618) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:860) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:241) at android.a pp.ActivityThread.main(ActivityThread.java:6274) 08-19 18:30:37.315 17929-17929/tj.horun.las.learnandroidstudio E/AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

Answer 1

您可以使用此库来启用代码突出显示。

Answer 2

您可以使用CodeView库并为您想要的语言设置配置，然后只需使用 setText，它将以您想要的任何颜色突出显示，您可以在运行时更改主题。

Answer 3

yeah, its possible to do using html. You can use Html.fromHtml() to set text like java code and color.