onClick按钮导致Android崩溃 _Android

弓背霞明剑照霜，秋风走马出咸阳。这篇文章主要讲述onClick按钮导致Android崩溃相关的知识，希望能为你提供帮助。
我已经克隆了this git depo，这是一个允许您捕获或选择图像并将其保存在pdf文档中的应用程序。
它工作正常，但是当我尝试集成到我的应用程序模块（新项目）中并单击该按钮以开始活动时，它崩溃了。我也没有更改Logcat也没有帮助的任何内容...
任何想法？
注意：我已经在清单中添加了活动。
编辑：我在下面添加了样式和布局
样式

< style name="MyAppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> < item name="colorPrimary"> @color/colorPrimary< /item> < item name="colorPrimaryDark"> @color/colorPrimaryDark< /item> < item name="colorAccent"> @color/colorAccent< /item> < item name="windowActionBar"> false< /item> < item name="windowNoTitle"> true< /item> < /style>

activity_pdf

< LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.nabeeltech.capturedoc.imgtopdf.PdfActivity"> < Button android:id="@+id/btnPdf" android:layout_width="match_parent" android:layout_margin="16dp" android:text="Generate Document" android:layout_height="wrap_content" /> < /LinearLayout>

PdfActivity

Button btn_Pdf = findViewById(R.id.btnPdf); activity = this; filename=new Date().toString(); btn_Pdf.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { getImages(); } }); }private void getImages() { Config config = new Config(); config.setToolbarTitleRes(R.string.str_bar_tool); ImagePickerActivity.setConfig(config); Intent intent = new Intent(this, ImagePickerActivity.class); startActivityForResult(intent, INTENT_REQUEST_GET_IMAGES); }@Override protected void onActivityResult(int requestCode, int resuleCode, Intent intent) { super.onActivityResult(requestCode, resuleCode, intent); if (requestCode == INTENT_REQUEST_GET_IMAGES & & resuleCode == Activity.RESULT_OK) { ArrayList< Uri> image_uris = intent.getParcelableArrayListExtra(ImagePickerActivity.EXTRA_IMAGE_URIS); if(image_uris.size()!=0){ ArrayList< String> tempUris = new ArrayList< > (); for (Uri uri : image_uris) { tempUris.add(uri.getPath()); }CallBackCreatePdf callBackCreatePdf = new CallBackCreatePdf() { @Override public void OnCallBackCreatePdf(String tPath) { if(tPath!=""){ Toast.makeText(getBaseContext(),"Pdf Created", Toast.LENGTH_LONG).show(); }else{ Toast.makeText(getBaseContext(),"Error creating PDF", Toast.LENGTH_LONG).show(); }} }; MaterialDialog.Builder builder = new MaterialDialog.Builder(activity) .title("Creating PDF") .content("just a moment ...") .cancelable(false) .progress(true, 0); MaterialDialog dialog = builder.build(); AsynCreatePdf asynCreatePdf = new AsynCreatePdf(activity,callBackCreatePdf,dialog,tempUris,"1",("pdf"+(new Date()).getSeconds())); asynCreatePdf.execute(); }Log.d(LOG_ACTIVITY, "onActivityResult"); } }

这里是堆栈跟踪

2020-02-05 16:44:36.884 17311-17311/com.nabeeltech.capturedoc E/AndroidRuntime: FATAL EXCEPTION: main Process: com.nabeeltech.capturedoc, PID: 17311 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nabeeltech.capturedoc/com.gun0912.tedpicker.ImagePickerActivity}: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead. at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3270) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016) at android.os.Handler.dispatchMessage(Handler.java:107) at android.os.Looper.loop(Looper.java:214) at android.app.ActivityThread.main(ActivityThread.java:7356) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930) Caused by: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead. at androidx.appcompat.app.AppCompatDelegateImpl.setSupportActionBar(AppCompatDelegateImpl.java:421) at androidx.appcompat.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:150) at com.gun0912.tedpicker.ImagePickerActivity.initView(ImagePickerActivity.java:95) at com.gun0912.tedpicker.ImagePickerActivity.onCreate(ImagePickerActivity.java:82) at android.app.Activity.performCreate(Activity.java:7802) at android.app.Activity.performCreate(Activity.java:7791) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1299) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3245) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016) at android.os.Handler.dispatchMessage(Handler.java:107) at android.os.Looper.loop(Looper.java:214) at android.app.ActivityThread.main(ActivityThread.java:7356) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

答案

此活动已经具有窗口装饰提供的操作栏。不要请求Window.FEATURE_SUPPORT_ACTION_BAR并进行设置在主题中将windowActionBar设置为false可以改用工具栏。在androidx.appcompat.app.AppCompatDelegateImpl.setSupportActionBar（AppCompatDelegateImpl.java:421）

需要另一个主题。首先转到清单

< activity android:name=".ImagePickerActivity" android:theme="@style/CustomTheme" android:screenOrientation="portrait" />

然后转到res / values / styles.xml部分。创建主题。您的主题将是

< style name="CustomTheme" parent="Theme.AppCompat.Light.DarkActionBar"> < !-- Customize your theme here. --> < item name="colorPrimary"> @color/colorPrimary< /item> < item name="colorPrimaryDark"> @color/colorPrimaryDark< /item> < item name="colorAccent"> @color/colorAccent< /item> < item name="windowActionBar"> false< /item> < item name="windowNoTitle"> true< /item> < /style>

另一答案已修复。感谢@ intellij-amiya
我想念另一种风格。我在用

< activity android:name="com.nabeeltech.capturedoc.imgtopdf.PdfActivity" android:label="@string/title_activity_pdf" android:theme="@style/MyAppTheme"/> < activity android:name="com.gun0912.tedpicker.ImagePickerActivity" android:theme="@style/Theme.AppCompat.Light.DarkActionBar" android:screenOrientation="portrait" />

所以我用[]替换了[C0