小编Krz*_*wka的帖子

嗨我想将图像设置为FloatingActionButton我这样做:

<android.support.design.widget.FloatingActionButton
            android:id="@+id/qick_menu"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="20dp"
            android:src="@drawable/quick_menu"
            app:elevation="7dp"
            app:layout_anchor="@id/mapview"
            app:layout_anchorGravity="bottom|right|end" />

但我的按钮中有一个小图像

嗨，我想在tablewView的列内的文本上设置字体。我如何在Java中执行此操作是我的代码。感谢帮助。

    private final TableView<AnotherBus> table = new TableView<>();

    TableColumn busNumberCol = new TableColumn("Linia");
            busNumberCol.setCellValueFactory(
                    new PropertyValueFactory<>("busNumber"));
            busNumberCol.getStyleClass().add("Times New Roman,40");

            tb.getStyleClass().add("Times New Roman");

            TableColumn courseCol = new TableColumn("Kierunek");
            courseCol.setCellValueFactory(
                    new PropertyValueFactory<>("nameBusStpo"));
            courseCol.setPrefWidth(200);
            courseCol.getStyleClass().add("Times New Roman");
            TableColumn departureCol = new TableColumn("Odjazd");
            departureCol.setCellValueFactory(
                    new PropertyValueFactory<>("busTimetable"));
            table.setItems(list);
            table.getColumns().addAll(busNumberCol, courseCol, departureCol);
            table.setPlaceholder(new Label(

""));

我的应用程序是崩溃,在日志中我看到了这一点,我试图找到我如何解决它,但只有我发现这是因为一个上下文和一个人使用YourActivityName.this它工作正常,但我喜欢这个和我的应用程序崩溃了

这是日志:

Fatal Exception: android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@482fc81 is not valid; is your activity running?
       at android.view.ViewRootImpl.setView(ViewRootImpl.java:584)
       at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:310)
       at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:86)
       at android.app.Dialog.show(Dialog.java:322)
       at android.support.v7.app.AlertDialog$Builder.show(AlertDialog.java:953)
       at pl.eltegps.smokkomunikator.ui.activity.MainActivity.runServices(MainActivity.java:505)
       at pl.eltegps.smokkomunikator.ui.activity.MainActivity.onStart(MainActivity.java:316)
       at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1238)
       at android.app.Activity.performStart(Activity.java:6288)
       at android.app.Activity.performRestart(Activity.java:6334)
       at android.app.ActivityThread.handleSleeping(ActivityThread.java:3688)
       at android.app.ActivityThread.access$2900(ActivityThread.java:157)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1531)
       at android.os.Handler.dispatchMessage(Handler.java:102)
       at android.os.Looper.loop(Looper.java:148)
       at android.app.ActivityThread.main(ActivityThread.java:5527)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)

这是代码:

 protected void runServices() {
        if (LocationUtil.isLocationEnabled(getBaseContext())) {
            if (checkPermission()) {
                runLocationService();
            }
        } else {
            AlertDialog.Builder dialog = new AlertDialog.Builder(this);
            dialog.setMessage(getResources().getString(R.string.location_settings_disabled));
            dialog.setPositiveButton(getString(R.string.go_to_location_settings), …

我想拍一张照片并在 imageView 中显示这张照片，它在 api 23 和 24 上无法正常工作我尝试添加了一个文件提供程序，这就是我所做的。

我的活动：

public class TestActivity extends AppCompatActivity {

    ImageView iv;
    private File photoFile;
    private String mCurrentPhotoPath;
    private static final String TAG = "PHOTO";



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_test);

        iv = (ImageView) findViewById(R.id.iv);

        photo();


    }
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
            if (mCurrentPhotoPath != null) {
                File file = new File(mCurrentPhotoPath);
                if(file.exists())
                    Log.e(TAG , "photo jest");
                try { …

当我这样做时，我的应用程序崩溃：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    if (Settings.System.canWrite(ListOfTerminalsActivity.this)) {
         // Do stuff here
     } else {
         Intent intent = new Intent(android.provider.Settings.ACTION_MANAGE_WRITE_SETTINGS);
         intent.setData(Uri.parse("package:" + getPackageName()));
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         startActivity(intent);
     }
}

它发生在ZUK Z2的API 23上，这是日志;

android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.settings.action.MANAGE_WRITE_SETTINGS dat=package:pl.teminalmobile flg=0x10000000 }
01-24 12:33:56.123 30159 30159 E AndroidRuntime:  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2464)
01-24 12:33:56.123 30159 30159 E AndroidRuntime:  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2536)
01-24 12:33:56.123 30159 30159 E AndroidRuntime:  at android.app.ActivityThread.access$900(ActivityThread.java:159)
01-24 12:33:56.123 30159 30159 E AndroidRuntime:  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1353)
01-24 12:33:56.123 30159 30159 E …

嗨，我在 onCreate() 上创建了一个 Realm 接下来我想class CheckerThread extends AsyncTask<Void, String, Boolean>在 doInBackground中公开存储一个日期，但我有一个

java.lang.IllegalStateException：来自不正确线程的领域访问。Realm 对象只能在创建它们的线程上访问。

onCreate 我有这个：

realm = RealmController.with(this).getRealm();

接下来在 AsynTask 中，我下载了一个数据，我想保存它，我想在 doInBackground 中执行此操作，但是当我执行此操作时，我有：

Caused by: java.lang.IllegalStateException: Realm access from incorrect thread. Realm instance can only be closed on the thread it was created.

我在 doInBackground 上这样做，但它没有帮助：

try {
                                    realm = RealmController.with(getApplication()).getRealm();
                                    RealmController.with(getApplication()).save(data);
                                }
                                finally {
                                    realm.close();
                                }

一个领域控制器；

public class RealmController {

    private static RealmController instance;
    private final Realm realm;

    public RealmController(Application application) {
        realm = Realm.getDefaultInstance();
    } …

这是我的目标:

public class ObjectsInGroupRealm extends RealmObject {

    @PrimaryKey
    private Long id;
    private String name;
    private String groupName;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getGroupName() {
        return groupName;
    }

    public void setGroupName(String groupName) {
        this.groupName = groupName;
    }
}

当我创建一个新对象时,我想检查对象是否存在同一个名称和同一个groupName.对象名称可以在几个组中.这是我保存对象的代码:

 public static void saveObjectsInGroup(ArrayList<String> objects, String groupName , Realm realm){

        for(String object : …

我使用 moshi 将 JSon 解析为 Object 。这是我的 JSon：

[{
   "id": 4,
   "phone":    {
      "id": 3,
      "imei": "356938035643801",
      "description": "Marek Kowalski"
   },
   "user":    {
      "id": 3,
      "username": "marek.kowalski",
      "first_name": "Marek",
      "last_name": "Kowalski"
   },
   "user_id": 3,
   "message": "Podejrzane zachowanie, sprawd??.",
   "date_time_data": "2017-09-05T22:26:44.916927Z",
   "longitude": 19.934113,
   "latitude": 50.075086,
   "confirm": 0,
   "changetime": "2017-09-05T22:26:44.930357Z",
   "has_coordinates": 1
}]

这是我的对象：

public class Message {

    String message;
    double longitude;
    double latitude;
    int confirm;

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    } …

我在Api 18上这样做了它的工作原理:

String[] proj = new String[] { BookmarkColumns.TITLE,BookmarkColumns.URL };
        Uri uriCustom = Uri.parse("content://com.android.chrome.browser/bookmarks");
        String sel = BookmarkColumns.BOOKMARK + " = 0"; // 0 = history, 1 = bookmark
        Cursor mCur = getContentResolver().query(uriCustom, proj, sel, null, null);
        mCur.moveToFirst();
        @SuppressWarnings("unused")
        String title = "";
        @SuppressWarnings("unused")
        String url = "";

        if (mCur.moveToFirst() && mCur.getCount() > 0) {
            boolean cont = true;
            while (mCur.isAfterLast() == false && cont) {
                title = mCur.getString(mCur.getColumnIndex(BookmarkColumns.TITLE));
                url = mCur.getString(mCur.getColumnIndex(BookmarkColumns.URL));
                Log.e("title" , title);
                Log.e("url" , url);
                // Do …

我使用一个android studio，当我刷新控制台中的所有gradle项目时，我有：

Error:(28, 0) Could not find method ndk() for arguments [build_drk092k49tm2cwy3k37ev72l6$_run_closure1$_closure7@6b46899] 
  on object of type com.android.build.gradle.AppExtension. 
<a href="openFile:C:\Users\ElteGps 022\Desktop\PairingCodes\app\build.gradle">Open File</a>

在邮件中，我看到：

找不到方法ndk（）作为参数

这是我的build.gradle

apply plugin: 'com.android.application'
apply plugin: 'me.tatarka.retrolambda'


android {
    compileSdkVersion 25
    buildToolsVersion "25.0.2"
    defaultConfig {
        applicationId "smok.pl.pairingcodes"
        minSdkVersion 15
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    compileOptions {
        targetCompatibility 1.8
        sourceCompatibility 1.8
    }

    ndk {
        moduleName "liblfrfid"
        abiFilters "armeabi", "armeabi-v7a", "x86", "mips"
    }


    task …

这是我的字符串地址:伦敦,Jon 2 A.

我希望在我的输出中看到伦敦,乔恩

我试着这样做:

String result = chapterNumber.substring(0, chapterNumber.indexOf("1"));

但我必须从不同数量做10次也许是更好的方法来做到这一点