小编use*_*988的帖子

我试着去的设置OnDragListener到某些词TextView使用SpannableString.我可以使用添加一个OnClick监听器ClickableSpan

通过做

hashText.setSpan(new ClickableSpan() {

所以我想我会尝试相同但替换ClickableSpan为OnDragListener.

我能够读取不同的拖动事件,但是我无法将拖动事件与我选择的特定单词隔离开来,就像我能够做到的那样ClickableSpan.

hashText.setSpan(new View.OnDragListener() {
            @Override
            public boolean onDrag(View targetView, DragEvent event) {
              int action = event.getAction();
              TextView targetVariable = (TextView) targetView;
              String textGetter;
              textGetter = targetVariable.getText().toString();
              // boolean actionDropOutside = (DragEvent.ACTION_DRAG_ENDED != DragEvent.ACTION_DROP);
              switch (event.getAction()) {
                case DragEvent.ACTION_DRAG_STARTED:


                  Log.d(TAG, "DRAG STARTED");
                  break;
                case DragEvent.ACTION_DRAG_ENTERED:

                  ////create method that checks if text is empty if so lights up
                  //if (textGetter.equals("")) { …

我正在尝试将用户在下面的登录屏幕中输入的名称保存Settings.java到a sharedPreference,这TestFragment2.java将从另一个FragmentActivity调用,SampleTabsDefault.java

Settings.java

    private void savePrefs(String key, boolean value) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
        Editor edit = sp.edit();
        edit.putBoolean(key, value);
        edit.commit();
    }

    private void savePrefs(String key, String value) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
        Editor edit = sp.edit();
        edit.putString(key, value);
        edit.commit();
    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        savePrefs("CHECKBOX", cb.isChecked());
        if (cb.isChecked())
            savePrefs("NAME", et.getText().toString());
        Intent myIntent = new Intent("com.test.SAMPLETABSDEFAULT");
        startActivity(myIntent);

        finish();
    }

}

Intent myIntent = new Intent("com.test.SAMPLETABSDEFAULT");startActivity(myIntent); 加载SampleTabsDefault.java …

如果由于用户不说话而在RecognizerIntent完成的情况下如何处理图像(ImageView)的可见性

if (RecognizerIntent.EXTRA_RESULTS == null){
image1.setVisibility(View.VISIBLE);///microphone icon
}

要么

if (RecognizerIntent.ACTION_RECOGNIZE_SPEECH == null){
image1.setVisibility(View.INVISIBLE);///microphone
}

日Thnx

我已成功按照本教程https://www.youtube.com/watch?v=kFtxo7rr2HQ学习如何使用 Android Studio 构建 NDK 应用程序。

该教程使用了public native String HelloJNI();

HelloJNI.c该字符串在文件中设置

#include "com_example_myapplication_MainActivity.h"
/* Header for class com_example_myapplication_MainActivity */

/*
 * Class:     com_example_myapplication_MainActivity
 * Method:    HelloJNI
 * Signature: ()Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL Java_com_example_myapplication_MainActivity_HelloJNI
  (JNIEnv *env, jobject obj)
  {
(*env)->NewStringUTF(env, "Hello from jni");
}

并在运行时加载

static{
    System.loadLibrary("HelloJNI");
    }

现在我试图做同样的事情，但检索而int不是string public native int getintONE();

我按照教程中的相同步骤操作，一切正常，现在我的getintONE.c阅读

#include "com_example_myapplication_MainActivity.h"
/*
 * Class:     com_example_myapplication_MainActivity
 * Method:    getintONE
 * Signature: ()I
 */
JNIEXPORT jint JNICALL com_example_myapplication_MainActivity_getintONE …