Question

我正在尝试构建一个简单的应用程序，只需通过单选按钮获取一些输入，搜索栏进度和复选框，然后返回一个详细说明用户是否喜欢猫或狗的屏幕。

到目前为止，我已经确认所有内容都运行良好，直到我在Activity2中尝试setImageDrawable()。我已经设法让TextView显示正确的文本行，即：你喜欢DOGS，表示代码的意图和putExtra()位工作得很好。

唯一的问题就是这行代码，（注释掉它会让应用程序正常工作）

image2.setImageDrawable(ContextCompat.getDrawable(this, R.drawable.meceline));

我已经三次检查以确保我

1）将图像放入Android Studio的布局文件夹

2）图像是完全小写的字母

3）名称在Java文件中拼写正确。

我在另一个单独的项目中使用完全相同的图像尝试完全相同的代码，我在MainActivity中将Image设置为ImageView，并且工作得很好。现在唯一的区别是，我将一个Image设置为我从MainActivity获得的Activity2。

整个代码都在下方，并提前感谢任何可以帮助我的人。

编辑：

这是错误。

09-09 10:57:05.479  24786-24786/com.example.cartermah.dogorcat E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.OutOfMemoryError
            at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
            at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:503)
            at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:356)
            at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:800)
            at android.content.res.Resources.loadDrawable(Resources.java:2105)
            at android.content.res.Resources.getDrawable(Resources.java:695)
            at android.widget.ImageView.resolveUri(ImageView.java:636)
            at android.widget.ImageView.setImageResource(ImageView.java:365)
            at com.example.cartermah.dogorcat.activity2.onCreate(activity2.java:33)
            at android.app.Activity.performCreate(Activity.java:5133)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5103)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
            at dalvik.system.NativeStart.main(Native Method)

OH！我刚刚意识到并且用Google搜索了错误的含义。它只是意味着我试图加载的图像太大了。这让我有另一个问题。我可以使用更小，更低分辨率的图像，但是没有办法坚持使用我想要使用的当前图像吗？

public class MainActivity extends AppCompatActivity {

    private RadioGroup radgroup1;
    private RadioButton radbutton1;
    private RadioGroup radgroup2;
    private RadioButton radbutton2;
    private Button button1;
    private SeekBar seekbar;
    public int Dog;
    public int Cat;
    private CheckBox check1;
    private CheckBox check2;
    private int seekbarcheck;


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

        radgroup1 = (RadioGroup) findViewById(R.id.radgroup1);
        button1 = (Button) findViewById(R.id.button1);
        radgroup2 = (RadioGroup) findViewById(R.id.droolgroup);
        seekbar = (SeekBar) findViewById(R.id.seekbar);
        Dog = 0;
        Cat = 0;
        check1 = (CheckBox) findViewById(R.id.dogbox);
        check2 = (CheckBox) findViewById(R.id.catbox);


        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {


                int chosen1 = radgroup1.getCheckedRadioButtonId();
                radbutton1 = (RadioButton) findViewById(chosen1);

                if (radbutton1.getText().equals("Whiskers")) {

                    Dog = Dog + 1;


                } else if (radbutton1.getText().equals("Tails")) {


                    Cat = Cat + 1;
                }


                seekbarcheck = seekbar.getProgress();


                if (seekbarcheck > 5) {
                    Dog = Dog + 1;
                } else {
                    Cat = Cat + 1;
                }


                if (check1.isChecked()) {
                    Dog = Dog + 1;
                }

                if (check2.isChecked()) {
                    Cat = Cat + 1;
                }


                int chosen2 = radgroup2.getCheckedRadioButtonId();

                radbutton2 = (RadioButton) findViewById(chosen2);

                if (radbutton2.getText().equals("YES")) {
                    Dog = Dog + 1;
                }
                if (radbutton2.getText().equals("NO")) {
                    Cat = Cat + 1;
                }


                Intent intent1 = new Intent(MainActivity.this, activity2.class);

                if (Dog > Cat) {
                    intent1.putExtra("result", 1);
                } else if (Cat > Dog) {
                    intent1.putExtra("result", 2);
                } else if (Dog == Cat) {
                    intent1.putExtra("result", 3);
                }


                startActivity(intent1);


            }
        });

    }
}

活动2：

public class activity2 extends AppCompatActivity {

    private TextView text1;
    private ImageView image2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        text1 = (TextView) findViewById(R.id.textresult);
        image2 = (ImageView) findViewById(R.id.boo123);

        Bundle bundle = getIntent().getExtras();


        if (bundle != null) {

            int result = bundle.getInt("result");

            if (result == 1) {
                text1.setText("YOU LIKE DOGS");
                image2.setImageDrawable(ContextCompat.getDrawable(this, R.drawable.meceline));
            } else if (result == 2) {
                text1.setText("YOU LIKE CATS");
                image2.setImageDrawable(ContextCompat.getDrawable(this, R.drawable.pau));
            } else if (result == 3) {
                text1.setText("Cheese?");
            }
        }
    }
}

Answer 1

而不是

image2.setImageDrawable(ContextCompat.getDrawable(this, R.drawable.meceline));

试试这个

image2.setImageDrawable(this.getDrawable(R.drawable.meceline));

Answer 2

您传递了intent1.putExtra（＆＃34;结果＆＃34;，1）;

并且在activity2中你获得了捆绑的价值但请记住，您还没有通过捆绑，而是将密钥发送到＃34;结果＆＃34;。

所以在你的第二个活动中做一件事就是放这个代码确定这会对你有所帮助

Intent mIntent = getIntent();
int result = mIntent.getIntExtra("result", 0);

请不要在activity2中使用bundle。试试这个并随意提出任何问题。：）

这里我正在编写您的activity2的完整代码。替换此代码..

public class activity2 extends AppCompatActivity {

private TextView text1;
private ImageView image2;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);

text1 = (TextView) findViewById(R.id.textresult);
image2 = (ImageView) findViewById(R.id.boo123);

Intent mIntent = getIntent();
int result = mIntent.getIntExtra("result", 0);

if (result == 1) {
text1.setText("YOU LIKE DOGS");
image2.setImageResource(R.drawable.meceline);
} else if (result == 2) {
text1.setText("YOU LIKE CATS");
 image2.setImageResource(R.drawable.pau));
} else if (result == 3) {
text1.setText("Cheese?");
  }
 }
}

在单独的活动

编辑：

2 个答案: