将 int 值从 activity 一发送到 activity 二

Question

您好，我正在尝试使用此代码

将 int 值从 activity 一发送到 activity 二

@Override
        public void onClick(View v) {
            new ChromaDialog.Builder()
                    .initialColor(getResources().getColor(R.color.colorAccent))
                    .colorMode(ColorMode.ARGB)
                    .indicatorMode(IndicatorMode.HEX)
                    .onColorSelected(new OnColorSelectedListener() {
                        @Override
                        public void onColorSelected(@ColorInt int color) {
                            Intent intent = new Intent(MainActivity.this, Hackpage.class);
                            intent.putExtra("intVariableName", color);
                            Toast.makeText(MainActivity.this,"color :"+Integer.toHexString(color),Toast.LENGTH_LONG).show();
                        }
                    })
                    .create()
                    .show(getSupportFragmentManager(), "ChromaDialog");


        }
    });
}

但是我的值有问题，我得到 0

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_hackpage);
    Texthack = (TextView)findViewById(R.id.hacktext);
    Intent mIntent = getIntent();
    int intValue = mIntent.getIntExtra("intVariableName", 0);
    Texthack.setBackgroundColor(Color.parseColor("#"+Integer.toHexString(intValue )));

Answer 1

您似乎正在获取密钥的默认值检查您的颜色变量是否为 int，它可能很长。如果它很长你可以通过 getIntent().getLongExtra(your_key, default_value)

得到它

Answer 2

//global:
static final String SOME_ACTION = "com.example.test.myapplicationtest.SOME_ACTION";
IntentFilter intentFilter = new IntentFilter(SOME_ACTION); //youre project package name. example "com.example.yourprojectpackagename.SOME_ACTION".



       @Override
    public void onClick(View v) {
        new ChromaDialog.Builder()
                .initialColor(getResources().getColor(R.color.colorAccent))
                .colorMode(ColorMode.ARGB)
                .indicatorMode(IndicatorMode.HEX)
                .onColorSelected(new OnColorSelectedListener() {
                    @Override
                    public void onColorSelected(@ColorInt int color) {
            registerReceiver(mReceiver, intentFilter);
            Intent intent = new Intent(SOME_ACTION);
            intent.putExtra("intVariableName", color);
            sendBroadcast(intent);
            Toast.makeText(MainActivity.this,"color :"+Integer.toHexString(color),Toast.LENGTH_LONG).show();
                    }
                })
                .create()
                .show(getSupportFragmentManager(), "ChromaDialog");
    }
});

}

     ///
private BroadcastReceiver mReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
       int value =  intent.getIntExtra("intVariableName",0);
        Toast.makeText(getApplicationContext(),""+value,Toast.LENGTH_LONG).show();
    }
};

效果很好。向现有 Activiy 发送价值。（例如 MainActivity.java）。所以你不需要使用 Hackpage.class.

将 int 值从 activity 一发送到 activity 二

send int value from activity one to activity two

android

bundler

android-intent